Doctor profile · Federal record

Dr. Michael Casimir, MD

Anesthesiology Physician (CMS: Anesthesiology) · Anesthesiology Physician · Anesthesiology Physician · Anesthesiology Physician · Student in an Organized Health Care Education/Training Program · Billings, MT

  • NPI 1669811238
  • Accepts Medicare
  • MIPS 64.7 / 100 · 2023
  • 13 yrs in practice
  • Licensed in 4 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2900 12Th Ave N Ste 205W
Billings, MT 591017520
(631) 379-2104
Additional location
4400 Bayou Blvd Ste 16C
Pensacola, FL 325031907
(850) 477-7042
Mailing address
248 Route 25A Ste 37
Setauket, NY 117332954

Credentials & registration

NPPES · NUCC
NPI registered
June 2013 — 13 yrs on file
Profile last updated
May 6, 2024
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207L00000X — NUCC code
State licenses (4)
Montana #80614 · Florida #ME161939 · New York #295005 · Massachusetts #270678

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669811238. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
291
Distinct HCPCS
10
Medicare allowed
$31,868
HCPCS Description Services Patients Avg allowed
36620 Insertion of artery tube for blood sampling or infusion through skin 51 51 $44
00790 Anesthesia for other procedure on upper abdomen 30 30 $169
76937 Ultrasonic guidance for blood vessel access 27 23 $14
93312 Ultrasound of heart with probe in esophagus, with report 27 27 $104
93325 Ultrasound of heart with color-depicted blood flow, rate and valve function 27 27 $3
01922 Anesthesia for x-ray or radiation therapy 24 24 $104
93320 Ultrasound of heart blood flow, valves and chambers 22 22 $17
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 20 20 $82
00537 Anesthesia for procedure to assess heart electrical activity 19 19 $253
93503 Insertion of tube in pulmonary artery for monitoring 19 19 $88

In context: peer comparison

Among 25 peers in this city , average services per provider: 23. This provider delivers 13× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Casimir's medical specialty?
Dr. Michael Casimir practices Anesthesiology Physician in Billings, MT.
Where does Dr. Michael Casimir practice?
Dr. Michael Casimir practices at 2900 12Th Ave N Ste 205W, Billings, MT 591017520. Office phone: 6313792104.
What is Dr. Michael Casimir's NPI?
Dr. Michael Casimir's National Provider Identifier (NPI) is 1669811238, issued by NPPES.
Does Dr. Michael Casimir accept Medicare assignment?
Yes. Dr. Michael Casimir accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Casimir commonly perform?
Top Medicare-reported procedures in 2023: Insertion of artery tube for blood sampling or infusion through skin (HCPCS 36620); Anesthesia for other procedure on upper abdomen (HCPCS 00790); Ultrasonic guidance for blood vessel access (HCPCS 76937). Source: CMS Medicare Physician & Other Practitioners file.