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

ERNST J SCHAEFER

Allopathic & Osteopathic Physicians Internal Medicine Endocrinology, Diabetes & Metabolism

NPI
1083803159
CMS profile
94164
Location
BOSTON, MA

General Payments · PY2018–2024

$49,086.98

  • Reported across 29 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$31,669.85

15 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
Consulting Fee $27,735.00 4
Travel and Lodging $3,337.97 6
Food and Beverage $596.88 5

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Mirum Pharmaceuticals, Inc. $31,669.85 15

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $14,258.50 6
PY2019 $113.37 5
PY2022 $3,000.00 2
PY2023 $45.26 1
PY2024 $31,669.85 15

Payment records · PY2024 (15)

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

Program year 2024 2018201920222023 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
Mirum Pharmaceuticals, Inc. $8,390.00 05/01/2024 Consulting Fee Undisputed 01/23/2026 1123322409 CMS
Mirum Pharmaceuticals, Inc. $20.00 05/01/2024 Travel and Lodging Undisputed 01/23/2026 1123322411 CMS
Mirum Pharmaceuticals, Inc. $20.00 05/30/2024 Travel and Lodging Undisputed 01/23/2026 1123322391 CMS
Mirum Pharmaceuticals, Inc. $80.65 05/30/2024 Food and Beverage Undisputed 01/23/2026 1123322393 CMS
Mirum Pharmaceuticals, Inc. $3,000.00 05/30/2024 Consulting Fee Undisputed 01/23/2026 1123322395 CMS
Mirum Pharmaceuticals, Inc. $647.21 05/30/2024 Travel and Lodging Undisputed 01/23/2026 1123322397 CMS
Mirum Pharmaceuticals, Inc. $69.94 05/30/2024 Food and Beverage Undisputed 01/23/2026 1123322399 CMS
Mirum Pharmaceuticals, Inc. $2,310.00 05/30/2024 Travel and Lodging Undisputed 01/23/2026 1123322401 CMS
Mirum Pharmaceuticals, Inc. $98.76 05/30/2024 Food and Beverage Undisputed 01/23/2026 1123322403 CMS
Mirum Pharmaceuticals, Inc. $3,080.00 05/30/2024 Consulting Fee Undisputed 01/23/2026 1123322405 CMS
Mirum Pharmaceuticals, Inc. $215.46 05/30/2024 Travel and Lodging Undisputed 01/23/2026 1123322407 CMS
Mirum Pharmaceuticals, Inc. $191.53 06/27/2024 Food and Beverage Undisputed 01/23/2026 1123322419 CMS
Mirum Pharmaceuticals, Inc. $156.00 07/01/2024 Food and Beverage Undisputed 01/23/2026 1123322413 CMS
Mirum Pharmaceuticals, Inc. $125.30 07/01/2024 Travel and Lodging Undisputed 01/23/2026 1123322415 CMS
Mirum Pharmaceuticals, Inc. $13,265.00 07/01/2024 Consulting Fee Undisputed 01/23/2026 1123322417 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, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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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.