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Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

Covered recipient · General Payments record

MICHAEL S COLLIER

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1811933674
CMS profile
309534
Location
KNOXVILLE, TN

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

General Payments · PY2019–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$2,216.05

149 records · 0 disputed

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): (records>=3 OR total>=100) AND records>=2 AND NPI identity (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,171.05 148
Education $45.00 1

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
PFIZER INC. $360.67 28
ABBVIE INC. $354.52 31
Novo Nordisk AS $242.26 18
Lilly USA, LLC $172.43 12
Otsuka America Pharmaceutical, Inc. $149.72 11
HEARTFLOW, INC. $100.59 2
NOVARTIS PHARMACEUTICALS CORPORATION $87.49 6
DEXCOM, INC. $87.18 4
GlaxoSmithKline, LLC. $67.35 4
Phathom Pharmaceuticals, Inc. $57.48 3
Salix Pharmaceuticals, a division of Bausch Health US, LLC $55.62 3
Exact Sciences Corporation $50.11 3
Xeris Pharmaceuticals, Inc. $41.27 2
Vanda Pharmaceuticals Inc. $40.87 2
Sumitomo Pharma America, Inc. $35.56 2
Acerta Pharma LLC $32.74 2
IBSA Pharma Inc. $31.64 2
Amgen Inc. $30.75 2
Abbott Laboratories $28.84 2
Edwards Lifesciences Corporation $27.14 1
Lundbeck LLC $25.89 1
ITI, Inc. $19.74 1
Merck Sharp & Dohme Corporation $19.41 1
Esperion Therapeutics, Inc. $18.29 1
SHIELD THERAPEUTICS INC $17.98 1
Axsome Therapeutics, Inc. $16.41 1
Dynavax Technologies Corporation $15.41 1
Astellas Pharma US Inc $14.79 1
Antares Pharma, Inc. $13.90 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $2,062.67 186
PY2020 $1,944.33 168
PY2021 $2,807.35 242
PY2022 $2,646.41 203
PY2023 $2,486.00 182
PY2024 $2,493.38 187
PY2025 $2,216.05 149

Payment records · PY2025 (149)

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

Program year 2025 201920202021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
PFIZER INC. $22.00 12/12/2025 Food and Beverage No dispute reported 06/30/2026 1229373772 CMS
PFIZER INC. $10.02 12/10/2025 Food and Beverage No dispute reported 06/30/2026 1229809170 CMS
ABBVIE INC. $7.56 12/09/2025 Food and Beverage No dispute reported 06/30/2026 1201682995 CMS
Otsuka America Pharmaceutical, Inc. $15.34 12/04/2025 Food and Beverage No dispute reported 06/30/2026 1227311465 CMS
ABBVIE INC. $15.68 12/03/2025 Food and Beverage No dispute reported 06/30/2026 1201682993 CMS
GlaxoSmithKline, LLC. $16.03 12/01/2025 Food and Beverage No dispute reported 06/30/2026 1190652292 CMS
Lilly USA, LLC $16.69 11/30/2025 Food and Beverage No dispute reported 06/30/2026 1186819970 CMS
PFIZER INC. $16.90 11/25/2025 Food and Beverage No dispute reported 06/30/2026 1229304494 CMS
ABBVIE INC. $19.36 11/24/2025 Food and Beverage No dispute reported 06/30/2026 1201682991 CMS
Merck Sharp & Dohme LLC $19.41 11/21/2025 Food and Beverage No dispute reported 06/30/2026 1238180531 CMS
Exact Sciences Corporation $16.87 11/19/2025 Food and Beverage No dispute reported 06/30/2026 1235579928 CMS
Novo Nordisk Inc $17.47 11/17/2025 Food and Beverage No dispute reported 06/30/2026 1189141514 CMS
ABBVIE INC. $8.76 11/11/2025 Food and Beverage No dispute reported 06/30/2026 1201682989 CMS
PFIZER INC. $10.24 11/05/2025 Food and Beverage No dispute reported 06/30/2026 1229353604 CMS
ABBVIE INC. $8.85 11/03/2025 Food and Beverage No dispute reported 06/30/2026 1201682987 CMS
Otsuka America Pharmaceutical, Inc. $16.92 11/03/2025 Food and Beverage No dispute reported 06/30/2026 1227311463 CMS
HEARTFLOW, INC. $85.87 10/31/2025 Food and Beverage No dispute reported 06/30/2026 1233534097 CMS
Novo Nordisk Inc $13.34 10/30/2025 Food and Beverage No dispute reported 06/30/2026 1188804504 CMS
ABBVIE INC. $8.98 10/28/2025 Food and Beverage No dispute reported 06/30/2026 1201682985 CMS
Xeris Pharmaceuticals, Inc. $23.92 10/27/2025 Food and Beverage No dispute reported 06/30/2026 1250169016 CMS
Lilly USA, LLC $13.34 10/23/2025 Food and Beverage No dispute reported 06/30/2026 1186757355 CMS
Novo Nordisk Inc $2.13 10/23/2025 Food and Beverage No dispute reported 06/30/2026 1188324524 CMS
Novo Nordisk Inc $1.01 10/22/2025 Food and Beverage No dispute reported 06/30/2026 1189037054 CMS
Dexcom, Inc. $23.69 10/21/2025 Food and Beverage No dispute reported 06/30/2026 1250508994 CMS
Novo Nordisk Inc $11.03 10/21/2025 Food and Beverage No dispute reported 06/30/2026 1188715311 CMS
PFIZER INC. $17.25 10/17/2025 Food and Beverage No dispute reported 06/30/2026 1229735976 CMS
PFIZER INC. $11.03 10/14/2025 Food and Beverage No dispute reported 06/30/2026 1229559670 CMS
Novartis Pharmaceuticals Corporation $14.12 10/08/2025 Food and Beverage No dispute reported 06/30/2026 1200107783 CMS
GlaxoSmithKline, LLC. $19.21 10/01/2025 Food and Beverage No dispute reported 06/30/2026 1190383033 CMS
ABBVIE INC. $17.50 09/30/2025 Food and Beverage No dispute reported 06/30/2026 1201682983 CMS
Amgen Inc. $14.92 09/24/2025 Food and Beverage No dispute reported 06/30/2026 1227218609 CMS
AstraZeneca Pharmaceuticals LP $16.74 09/22/2025 Food and Beverage No dispute reported 06/30/2026 1206189636 CMS
PFIZER INC. $17.55 09/17/2025 Food and Beverage No dispute reported 06/30/2026 1229667972 CMS
Novo Nordisk Inc $11.42 09/15/2025 Food and Beverage No dispute reported 06/30/2026 1188401674 CMS
Otsuka America Pharmaceutical, Inc. $19.22 09/08/2025 Food and Beverage No dispute reported 06/30/2026 1227311461 CMS
Dexcom, Inc. $21.61 09/03/2025 Food and Beverage No dispute reported 06/30/2026 1250508992 CMS
PFIZER INC. $22.00 09/02/2025 Food and Beverage No dispute reported 06/30/2026 1229343311 CMS
ABBVIE INC. $15.12 08/28/2025 Food and Beverage No dispute reported 06/30/2026 1201682981 CMS
ABBVIE INC. $9.54 08/27/2025 Food and Beverage No dispute reported 06/30/2026 1201682979 CMS
PFIZER INC. $11.00 08/26/2025 Food and Beverage No dispute reported 06/30/2026 1229171793 CMS
Novartis Pharmaceuticals Corporation $14.77 08/25/2025 Food and Beverage No dispute reported 06/30/2026 1200107767 CMS
Novartis Pharmaceuticals Corporation $14.77 08/25/2025 Food and Beverage No dispute reported 06/30/2026 1200107773 CMS
Lilly USA, LLC $13.81 08/20/2025 Food and Beverage No dispute reported 06/30/2026 1186804525 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $23.77 08/18/2025 Food and Beverage No dispute reported 06/30/2026 1231966828 CMS
PFIZER INC. $10.57 08/12/2025 Food and Beverage No dispute reported 06/30/2026 1229065600 CMS
ABBVIE INC. $10.74 08/11/2025 Food and Beverage No dispute reported 06/30/2026 1201682977 CMS
ABBVIE INC. $27.22 08/06/2025 Food and Beverage No dispute reported 06/30/2026 1201682975 CMS
Otsuka America Pharmaceutical, Inc. $16.08 08/05/2025 Food and Beverage No dispute reported 06/30/2026 1227311459 CMS
Vanda Pharmaceuticals Inc. $14.04 07/31/2025 Food and Beverage No dispute reported 06/30/2026 1232956905 CMS
PFIZER INC. $12.41 07/29/2025 Food and Beverage No dispute reported 06/30/2026 1229084336 CMS
ABBVIE INC. $19.53 07/27/2025 Food and Beverage No dispute reported 06/30/2026 1201682973 CMS
ABBVIE INC. $10.57 07/18/2025 Food and Beverage No dispute reported 06/30/2026 1201682971 CMS
PFIZER INC. $17.42 07/16/2025 Food and Beverage No dispute reported 06/30/2026 1229068058 CMS
ABBVIE INC. $9.50 07/15/2025 Food and Beverage No dispute reported 06/30/2026 1201682969 CMS
Abbott Laboratories $13.88 07/11/2025 Food and Beverage No dispute reported 06/30/2026 1240955949 CMS
Otsuka America Pharmaceutical, Inc. $15.84 07/11/2025 Food and Beverage No dispute reported 06/30/2026 1227311457 CMS
Novo Nordisk Inc $20.27 07/10/2025 Food and Beverage No dispute reported 06/30/2026 1188219100 CMS
PFIZER INC. $10.04 07/08/2025 Food and Beverage No dispute reported 06/30/2026 1231667682 CMS
Novartis Pharmaceuticals Corporation $16.01 07/07/2025 Food and Beverage No dispute reported 06/30/2026 1200107761 CMS
Phathom Pharmaceuticals, Inc. $19.34 07/01/2025 Food and Beverage No dispute reported 06/30/2026 1219263005 CMS
Novo Nordisk Inc $13.85 06/26/2025 Food and Beverage No dispute reported 06/30/2026 1188434917 CMS
ABBVIE INC. $13.52 06/25/2025 Food and Beverage No dispute reported 06/30/2026 1201682967 CMS
Lilly USA, LLC $7.90 06/23/2025 Food and Beverage No dispute reported 06/30/2026 1186842971 CMS
Novo Nordisk Inc $17.18 06/19/2025 Food and Beverage No dispute reported 06/30/2026 1189108251 CMS
Dexcom, Inc. $22.60 06/17/2025 Food and Beverage No dispute reported 06/30/2026 1250508990 CMS
Axsome Therapeutics, Inc. $16.41 06/16/2025 Food and Beverage No dispute reported 06/30/2026 1235315453 CMS
HEARTFLOW, INC. $14.72 06/12/2025 Food and Beverage No dispute reported 06/30/2026 1233534093 CMS
Amgen Inc. $15.83 06/11/2025 Food and Beverage No dispute reported 06/30/2026 1228632198 CMS
PFIZER INC. $10.70 06/10/2025 Food and Beverage No dispute reported 06/30/2026 1228888855 CMS
ABBVIE INC. $12.65 06/09/2025 Food and Beverage No dispute reported 06/30/2026 1201682965 CMS
Vanda Pharmaceuticals Inc. $26.83 06/05/2025 Food and Beverage No dispute reported 06/30/2026 1232956903 CMS
GlaxoSmithKline, LLC. $15.68 06/04/2025 Food and Beverage No dispute reported 06/30/2026 1191004220 CMS
Otsuka America Pharmaceutical, Inc. $18.55 06/02/2025 Food and Beverage No dispute reported 06/30/2026 1227311455 CMS
Novo Nordisk Inc $17.86 05/30/2025 Food and Beverage No dispute reported 06/30/2026 1188601841 CMS
ABBVIE INC. $11.55 05/29/2025 Food and Beverage No dispute reported 06/30/2026 1201682963 CMS
Novartis Pharmaceuticals Corporation $13.89 05/27/2025 Food and Beverage No dispute reported 06/30/2026 1200107759 CMS
Lundbeck LLC $25.89 05/23/2025 Food and Beverage No dispute reported 06/30/2026 1251785457 CMS
Lilly USA, LLC $13.40 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1186819976 CMS
PFIZER INC. $11.41 05/21/2025 Food and Beverage No dispute reported 06/30/2026 1231510448 CMS
Novo Nordisk Inc $16.05 05/20/2025 Food and Beverage No dispute reported 06/30/2026 1188272808 CMS
ABBVIE INC. $11.74 05/13/2025 Food and Beverage No dispute reported 06/30/2026 1201682961 CMS
PFIZER INC. $22.00 05/12/2025 Food and Beverage No dispute reported 06/30/2026 1231310129 CMS
Antares Pharma, Inc. $13.90 05/08/2025 Food and Beverage No dispute reported 06/30/2026 1235883848 CMS
PFIZER INC. $10.58 05/07/2025 Food and Beverage No dispute reported 06/30/2026 1228868216 CMS
ABBVIE INC. $10.95 05/05/2025 Food and Beverage No dispute reported 06/30/2026 1201682959 CMS
Otsuka America Pharmaceutical, Inc. $11.54 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1227311453 CMS
Phathom Pharmaceuticals, Inc. $18.99 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1219377193 CMS
Edwards Lifesciences Corporation $27.14 04/30/2025 Food and Beverage No dispute reported 06/30/2026 1225206219 CMS
Esperion Therapeutics, Inc. $18.29 04/29/2025 Food and Beverage No dispute reported 06/30/2026 1243955592 CMS
SHIELD THERAPEUTICS INC $17.98 04/28/2025 Food and Beverage No dispute reported 06/30/2026 1249613694 CMS
ABBVIE INC. $8.40 04/25/2025 Food and Beverage No dispute reported 06/30/2026 1201682957 CMS
Lilly USA, LLC $10.84 04/22/2025 Food and Beverage No dispute reported 06/30/2026 1186772268 CMS
GlaxoSmithKline, LLC. $16.43 04/17/2025 Food and Beverage No dispute reported 06/30/2026 1190611137 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.68 04/16/2025 Food and Beverage No dispute reported 06/30/2026 1231966825 CMS
IBSA Pharma Inc. $15.92 04/15/2025 Food and Beverage No dispute reported 06/30/2026 1211690060 CMS
ABBVIE INC. $9.84 04/14/2025 Food and Beverage No dispute reported 06/30/2026 1201682955 CMS
Novo Nordisk Inc $14.78 04/11/2025 Food and Beverage No dispute reported 06/30/2026 1188813762 CMS
Novo Nordisk Inc $19.10 04/10/2025 Food and Beverage No dispute reported 06/30/2026 1188756805 CMS
ABBVIE INC. $8.82 04/09/2025 Food and Beverage No dispute reported 06/30/2026 1201682953 CMS
PFIZER INC. $11.16 04/08/2025 Food and Beverage No dispute reported 06/30/2026 1228986401 CMS
Xeris Pharmaceuticals, Inc. $17.35 04/07/2025 Food and Beverage No dispute reported 06/30/2026 1250169014 CMS
Otsuka America Pharmaceutical, Inc. $13.41 04/03/2025 Food and Beverage No dispute reported 06/30/2026 1227311451 CMS
Dexcom, Inc. $19.28 04/02/2025 Food and Beverage No dispute reported 06/30/2026 1250508988 CMS
Astellas Pharma US Inc $14.79 03/31/2025 Food and Beverage No dispute reported 06/30/2026 1238765282 CMS
ABBVIE INC. $9.53 03/28/2025 Food and Beverage No dispute reported 06/30/2026 1201682949 CMS
ABBVIE INC. $0.81 03/28/2025 Food and Beverage No dispute reported 06/30/2026 1201682951 CMS
ABBVIE INC. $11.56 03/27/2025 Food and Beverage No dispute reported 06/30/2026 1201682947 CMS
PFIZER INC. $6.35 03/27/2025 Food and Beverage No dispute reported 06/30/2026 1228996820 CMS
PFIZER INC. $1.80 03/26/2025 Food and Beverage No dispute reported 06/30/2026 1231526573 CMS
Lilly USA, LLC $16.28 03/25/2025 Food and Beverage No dispute reported 06/30/2026 1186819968 CMS
Sumitomo Pharma America, Inc. $17.07 03/25/2025 Food and Beverage No dispute reported 06/30/2026 1176627099 CMS
Phathom Pharmaceuticals, Inc. $19.15 03/24/2025 Food and Beverage No dispute reported 06/30/2026 1219377249 CMS
Novo Nordisk Inc $16.38 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1189098345 CMS
PFIZER INC. $10.57 03/18/2025 Food and Beverage No dispute reported 06/30/2026 1231387647 CMS
AstraZeneca Pharmaceuticals LP $16.00 03/17/2025 Food and Beverage No dispute reported 06/30/2026 1206465641 CMS
Novo Nordisk Inc $12.70 03/13/2025 Food and Beverage No dispute reported 06/30/2026 1188312435 CMS
ABBVIE INC. $9.61 03/11/2025 Food and Beverage No dispute reported 06/30/2026 1201682945 CMS
Lilly USA, LLC $12.01 03/07/2025 Food and Beverage No dispute reported 06/30/2026 1186772266 CMS
Exact Sciences Corporation $16.79 03/03/2025 Food and Beverage No dispute reported 06/30/2026 1235579924 CMS
PFIZER INC. $7.15 03/03/2025 Food and Beverage No dispute reported 06/30/2026 1231474544 CMS
PFIZER INC. $20.13 03/03/2025 Food and Beverage No dispute reported 06/30/2026 1231506486 CMS
Otsuka America Pharmaceutical, Inc. $10.68 02/27/2025 Food and Beverage No dispute reported 06/30/2026 1227311449 CMS
Novo Nordisk Inc $14.73 02/26/2025 Food and Beverage No dispute reported 06/30/2026 1189132323 CMS
PFIZER INC. $10.59 02/25/2025 Food and Beverage No dispute reported 06/30/2026 1231641831 CMS
ABBVIE INC. $5.09 02/21/2025 Food and Beverage No dispute reported 06/30/2026 1201682943 CMS
Novo Nordisk Inc $13.70 02/18/2025 Food and Beverage No dispute reported 06/30/2026 1188639433 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $15.17 02/18/2025 Food and Beverage No dispute reported 06/30/2026 1231966823 CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $19.74 02/14/2025 Food and Beverage No dispute reported 06/30/2026 1241280296 CMS
Lilly USA, LLC $12.82 02/12/2025 Food and Beverage No dispute reported 06/30/2026 1186772264 CMS
Lilly USA, LLC $0.68 02/12/2025 Food and Beverage No dispute reported 06/30/2026 1186819974 CMS
Dynavax Technologies Corporation $15.41 02/11/2025 Food and Beverage No dispute reported 06/30/2026 1182975351 CMS
PFIZER INC. $11.43 02/05/2025 Food and Beverage No dispute reported 06/30/2026 1231672141 CMS
Exact Sciences Corporation $16.45 02/04/2025 Food and Beverage No dispute reported 06/30/2026 1235579919 CMS
Otsuka America Pharmaceutical, Inc. $6.71 02/04/2025 Food and Beverage No dispute reported 06/30/2026 1227311447 CMS
Novartis Pharmaceuticals Corporation $13.93 02/03/2025 Food and Beverage No dispute reported 06/30/2026 1200107735 CMS
ABBVIE INC. $6.51 01/31/2025 Food and Beverage No dispute reported 06/30/2026 1201682941 CMS
ABBVIE INC. $11.54 01/30/2025 Food and Beverage No dispute reported 06/30/2026 1201682939 CMS
ABBVIE INC. $14.18 01/27/2025 Food and Beverage No dispute reported 06/30/2026 1201682937 CMS
Lilly USA, LLC $9.66 01/23/2025 Food and Beverage No dispute reported 06/30/2026 1186819972 CMS
Lilly USA, LLC $45.00 01/23/2025 Education No dispute reported 06/30/2026 1186842969 CMS
PFIZER INC. $7.87 01/22/2025 Food and Beverage No dispute reported 06/30/2026 1231127281 CMS
IBSA Pharma Inc. $15.72 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1211687821 CMS
ABBVIE INC. $9.31 01/14/2025 Food and Beverage No dispute reported 06/30/2026 1201682935 CMS
Novo Nordisk Inc $9.26 01/13/2025 Food and Beverage No dispute reported 06/30/2026 1188245707 CMS
Abbott Laboratories $14.96 01/08/2025 Food and Beverage No dispute reported 06/30/2026 1240895554 CMS
Sumitomo Pharma America, Inc. $18.49 01/08/2025 Food and Beverage No dispute reported 06/30/2026 1176627094 CMS
Otsuka America Pharmaceutical, Inc. $5.43 01/06/2025 Food and Beverage No dispute reported 06/30/2026 1227311445 CMS
PFIZER INC. $11.11 01/06/2025 Food and Beverage No dispute reported 06/30/2026 1231115142 CMS
PFIZER INC. $19.39 01/03/2025 Food and Beverage No dispute reported 06/30/2026 1231415079 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Permalink https://industrypayments.org/provider/npi-1811933674

Plain
MICHAEL S COLLIER, NPI 1811933674. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1811933674.
APA 7
IndustryPayments. (2026). MICHAEL S COLLIER, NPI 1811933674 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1811933674
Bluebook
MICHAEL S COLLIER, NPI 1811933674, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1811933674.

Source: Centers for Medicare & Medicaid Services, Open Payments.