Doctor profile · Federal record

Dr. Thomas Halaszynski, MD

Anesthesiology Physician (CMS: Anesthesiology) · New Haven, CT

  • NPI 1679554984
  • Accepts Medicare
  • 42 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 York St, Ynhh Tompkins Building - 3Rd Floor
New Haven, CT 065103220
(203) 785-2802
fax (203) 785-6664
Mailing address
300 George St, 6Th Floor
New Haven, CT 065116624

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
July 7, 2008
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Connecticut #036445
Medicaid
CT #001364455

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679554984. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
221
Distinct HCPCS
6
Medicare allowed
$15,099
HCPCS Description Services Patients Avg allowed
00142 Anesthesia for lens surgery 125 106 $56
00910 Anesthesia for other procedure on urinary system through urethra 31 30 $58
00140 Anesthesia for other procedure on eye 22 22 $68
00790 Anesthesia for other procedure on upper abdomen 16 16 $156
00918 Anesthesia for fragmenting, manipulation and/or removal of kidney stone including use of an endoscope 15 15 $95
00532 Anesthesia for access to central vein 12 12 $75

In context: peer comparison

Among 69 peers in New Haven Anesthesiology Physician, average services per provider: 37. This provider delivers 6.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Halaszynski's medical specialty?
Dr. Thomas Halaszynski practices Anesthesiology Physician in New Haven, CT.
Where does Dr. Thomas Halaszynski practice?
Dr. Thomas Halaszynski practices at 20 York St, New Haven, CT 065103220. Office phone: 2037852802.
What is Dr. Thomas Halaszynski's NPI?
Dr. Thomas Halaszynski's National Provider Identifier (NPI) is 1679554984, issued by NPPES.
Does Dr. Thomas Halaszynski accept Medicare assignment?
Yes. Dr. Thomas Halaszynski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Halaszynski commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for lens surgery (HCPCS 00142); Anesthesia for other procedure on urinary system through urethra (HCPCS 00910); Anesthesia for other procedure on eye (HCPCS 00140). Source: CMS Medicare Physician & Other Practitioners file.