Doctor profile · Federal record

Dr. Benjamin Gallagher, MD

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · New Haven, CT

  • NPI 1578958005
  • Accepts Medicare
  • MIPS 71.7 / 100 · 2023
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
150 Sargent Dr
New Haven, CT 065116100
(203) 503-3000
Mailing address
400 Columbus Ave, Credentialing Specialist
New Haven, CT 065191233

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
December 23, 2020
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #61118

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1578958005. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
23
Distinct HCPCS
1
Medicare allowed
$219
HCPCS Description Services Patients Avg allowed
83036 Hemoglobin a1c level 23 16 $10

In context: peer comparison

Among 66 peers in New Haven Internal Medicine Physician, average services per provider: 73. This provider delivers 0.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
756
Patients
218
Total drug cost
$184,661
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 93 29 $1,946
Ozempic (Semaglutide) Brand 71 20 $120,447
Amlodipine Besylate Generic 63 24 $612
Metformin Hcl Generic 51 12 $687
Rosuvastatin Calcium Generic 51 19 $1,689
Levothyroxine Sodium Generic 50 14 $1,204
Lisinopril Generic 48 20 $1,210
Diclofenac Sodium Generic 45 15 $947
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 44 0 $1,650
Jardiance (Empagliflozin) Brand 43 0 $48,864

Frequently asked questions

Auto-generated from federal data
What is Dr. Benjamin Gallagher's medical specialty?
Dr. Benjamin Gallagher practices Internal Medicine Physician in New Haven, CT.
Where does Dr. Benjamin Gallagher practice?
Dr. Benjamin Gallagher practices at 150 Sargent Dr, New Haven, CT 065116100. Office phone: 2035033000.
What is Dr. Benjamin Gallagher's NPI?
Dr. Benjamin Gallagher's National Provider Identifier (NPI) is 1578958005, issued by NPPES.
Does Dr. Benjamin Gallagher accept Medicare assignment?
Yes. Dr. Benjamin Gallagher accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Benjamin Gallagher commonly perform?
Top Medicare-reported procedures in 2023: Hemoglobin a1c level (HCPCS 83036). Source: CMS Medicare Physician & Other Practitioners file.