Doctor profile · Federal record

Dr. John Throop, MD

Emergency Medical Services (Emergency Medicine) Physician (CMS: Emergency Medicine) · Anesthesiology Physician · Emergency Medicine Physician · Grand Rapids, MI

  • NPI 1841218385
  • Accepts Medicare
  • MIPS 89.7 / 100 · 2023
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
100 Michigan St Ne
Grand Rapids, MI 495032560
(616) 391-1680
Mailing address
4100 Embassy Dr Se Ste 400
Grand Rapids, MI 495462416

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
May 22, 2025
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207PE0004X — NUCC code
State license (1)
Michigan #4301077377

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841218385. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
83
Distinct HCPCS
2
Medicare allowed
$13,366
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 62 62 $175
99284 Emergency department visit with moderate level of medical decision making 21 21 $120

In context: peer comparison

Among 12 peers in this city , average services per provider: 90. This provider delivers 0.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$301
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 1 $250.00
Inari Medical, Inc. 1 $50.54

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$250
Food and Beverage
$51

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. John Throop's medical specialty?
Dr. John Throop practices Emergency Medical Services (Emergency Medicine) Physician in Grand Rapids, MI.
Where does Dr. John Throop practice?
Dr. John Throop practices at 100 Michigan St Ne, Grand Rapids, MI 495032560. Office phone: 6163911680.
What is Dr. John Throop's NPI?
Dr. John Throop's National Provider Identifier (NPI) is 1841218385, issued by NPPES.
Does Dr. John Throop accept Medicare assignment?
Yes. Dr. John Throop accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Throop commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.