Doctor profile · Federal record

Dr. Tomasz Obrzut, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · New Haven, CT

  • NPI 1275761819
  • Accepts Medicare
  • 17 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 York St # T-209, Yale-New Haven Hospital
New Haven, CT 065103220
(203) 688-2259
fax (203) 688-5599
Mailing address
123 York St, Apt 20J
New Haven, CT 065115614

Credentials & registration

NPPES · NUCC
NPI registered
June 2009 — 17 yrs on file
Profile last updated
September 5, 2013
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Maryland #D0075939

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275761819. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
364
Distinct HCPCS
5
Medicare allowed
$47,618
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 152 145 $133
99285 Emergency department visit with high level of medical decision making 94 93 $191
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 69 47 $9
99291 Critical care, first 30-74 minutes 32 32 $235
99283 Emergency department visit with low level of medical decision making 17 17 $79

In context: peer comparison

Among 76 peers in New Haven Emergency Medicine Physician, average services per provider: 72. This provider delivers 5.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
105
Patients
105
Total drug cost
$830
Drug Type Claims Patients Total cost
Naproxen Generic 35 35 $142
Ondansetron Odt (Ondansetron) Brand 25 25 $388
Oxycodone Hcl Generic 20 20 $88
Cefuroxime (Cefuroxime Axetil) Brand 14 14 $176
Prednisone Generic 11 11 $36

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Tomasz Obrzut's medical specialty?
Dr. Tomasz Obrzut practices Emergency Medicine Physician in New Haven, CT.
Where does Dr. Tomasz Obrzut practice?
Dr. Tomasz Obrzut practices at 20 York St # T-209, New Haven, CT 065103220. Office phone: 2036882259.
What is Dr. Tomasz Obrzut's NPI?
Dr. Tomasz Obrzut's National Provider Identifier (NPI) is 1275761819, issued by NPPES.
Does Dr. Tomasz Obrzut accept Medicare assignment?
Yes. Dr. Tomasz Obrzut accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tomasz Obrzut commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.