Benjamin Gallagher, MD
NPI 1578958005 · Internal Medicine Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Gallagher, MD is a Internal Medicine Physician provider in New Haven, CT (NPI 1578958005).
Provider details
- NPI number
- 1578958005
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 61118 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
71 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 50 | $80 |
| Hemoglobin A1c Level83036 | 21 | $10 |
Typical Medicare-allowed amounts for these services range $10–$80 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 83 | 25 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 69 | 12 |
| Amlodipine Besylate | 68 | 21 |
| Rosuvastatin Calcium | 67 | 21 |
| Semaglutidebrand: Ozempic | 62 | 18 |
| Fluticasone Propionate | 60 | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-01
- Last updated
- 2020-12-23
- Certified
- 2020-12-23
Frequently asked questions
- What is Benjamin Gallagher's NPI number?
- Benjamin Gallagher's National Provider Identifier (NPI) is 1578958005, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Gallagher's specialty?
- Benjamin Gallagher is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Gallagher located?
- Benjamin Gallagher's practice location on file with NPPES is 150 Sargent Dr, New Haven, CT 06511-6100.
- What is Benjamin Gallagher's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Gallagher is (203) 503-3000.
- Does Benjamin Gallagher accept Medicare?
- Benjamin Gallagher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Gallagher's NPI active?
- Yes — Benjamin Gallagher's NPI (1578958005) is active in the NPPES registry as of the last update on 2020-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.