Doctor profile · Federal record

Dr. Matthew Flannigan, DO

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

  • NPI 1821109638
  • Accepts Medicare
  • MIPS 89.7 / 100 · 2023
  • 22 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
2537 Momentum Pl
Chicago, IL 606895325

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
April 27, 2012
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207PE0004X — NUCC code
State license (1)
Michigan #5101016015

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1821109638. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
161
Distinct HCPCS
3
Medicare allowed
$25,750
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 71 71 $175
99284 Emergency department visit with moderate level of medical decision making 62 61 $120
99291 Critical care, first 30-74 minutes 28 28 $210

In context: peer comparison

Among 12 peers in Grand Rapids Emergency Medical Services (Emergency Medicine) Physician, average services per provider: 90. This provider delivers 1.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
101
Patients
97
Total drug cost
$489
Drug Type Claims Patients Total cost
Ondansetron Hcl Generic 33 32 $220
Cephalexin Generic 23 23 $108
Ibuprofen Generic 19 18 $78
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 13 12 $56
Prednisone Generic 13 12 $27

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Matthew Flannigan's medical specialty?
Dr. Matthew Flannigan practices Emergency Medical Services (Emergency Medicine) Physician in Grand Rapids, MI.
Where does Dr. Matthew Flannigan practice?
Dr. Matthew Flannigan practices at 100 Michigan St Ne, Grand Rapids, MI 495032560. Office phone: 6163911680.
What is Dr. Matthew Flannigan's NPI?
Dr. Matthew Flannigan's National Provider Identifier (NPI) is 1821109638, issued by NPPES.
Does Dr. Matthew Flannigan accept Medicare assignment?
Yes. Dr. Matthew Flannigan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Matthew Flannigan 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); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.