Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

MARK A MCCLANAHAN

Allopathic & Osteopathic Physicians Internal Medicine Endocrinology, Diabetes & Metabolism

NPI
1093840811
CMS profile
49744
Location
FREDERICKSBURG, VA

General Payments · PY2018–2024

$9,253.83

  • Reported across 276 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$469.00

23 records · 0 disputed

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

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $469.00 23

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $5,668.16 73
PY2019 $1,210.78 86
PY2020 $628.11 33
PY2021 $617.96 33
PY2022 $341.20 14
PY2023 $318.62 14
PY2024 $469.00 23

Payment records · PY2024 (23)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Abbott Laboratories $17.35 02/29/2024 Food and Beverage Undisputed 01/23/2026 1124842880 CMS
Abbott Laboratories $22.60 12/19/2024 Food and Beverage Undisputed 01/23/2026 1124842883 CMS
Amgen Inc. $16.25 07/10/2024 Food and Beverage Undisputed 01/23/2026 1111647292 CMS
Amneal Pharmaceuticals LLC $21.92 04/25/2024 Food and Beverage Undisputed 01/23/2026 1139194848 CMS
Bayer Healthcare Pharmaceuticals Inc. $13.54 12/23/2024 Food and Beverage Undisputed 01/23/2026 1086232686 CMS
CeQur Corporation $32.40 07/11/2024 Food and Beverage Undisputed 01/23/2026 1126844266 CMS
Corcept Therapeutics $14.02 02/20/2024 Food and Beverage Undisputed 01/23/2026 1117730028 CMS
Corcept Therapeutics $13.93 03/14/2024 Food and Beverage Undisputed 01/23/2026 1117730034 CMS
Insulet Corporation $17.60 10/14/2024 Food and Beverage Undisputed 01/23/2026 1116824500 CMS
Insulet Corporation $17.60 10/15/2024 Food and Beverage Undisputed 01/23/2026 1116824498 CMS
Lilly USA, LLC $24.64 07/31/2024 Food and Beverage Undisputed 01/23/2026 1135167614 CMS
Mannkind Corporation $20.01 05/01/2024 Food and Beverage Undisputed 01/23/2026 1145846069 CMS
Mannkind Corporation $15.05 10/08/2024 Food and Beverage Undisputed 01/23/2026 1145846071 CMS
Medtronic, Inc. $20.78 06/20/2024 Food and Beverage Undisputed 01/23/2026 1117062417 CMS
Novartis Pharmaceuticals Corporation $25.53 07/23/2024 Food and Beverage Undisputed 01/23/2026 1087148588 CMS
Novartis Pharmaceuticals Corporation $21.00 09/19/2024 Food and Beverage Undisputed 01/23/2026 1087148612 CMS
Novo Nordisk Inc $13.15 08/01/2024 Food and Beverage Undisputed 01/23/2026 1097787676 CMS
Novo Nordisk Inc $14.00 11/05/2024 Food and Beverage Undisputed 01/23/2026 1097377488 CMS
Radius Health, Inc. $34.37 03/12/2024 Food and Beverage Undisputed 01/23/2026 1089973165 CMS
SANOFI-AVENTIS U.S. LLC $32.39 01/24/2024 Food and Beverage Undisputed 01/23/2026 1139637127 CMS
SANOFI-AVENTIS U.S. LLC $18.25 05/09/2024 Food and Beverage Undisputed 01/23/2026 1139637139 CMS
Tandem Diabetes Care, Inc. $27.17 02/23/2024 Food and Beverage Undisputed 01/23/2026 1138750603 CMS
Tandem Diabetes Care, Inc. $15.45 09/24/2024 Food and Beverage Undisputed 01/23/2026 1138746927 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.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.