Hamilton Gaiani, M.D.
NPI 1508276627 · Psychiatry Physician · Branford, CT
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hamilton Gaiani, M.D. is a Psychiatry Physician provider in Branford, CT (NPI 1508276627).
Provider details
- NPI number
- 1508276627
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1.055620 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
164 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 Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 93 | $53 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 55 | $103 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 16 | $84 |
Typical Medicare-allowed amounts for these services range $53–$103 (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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 122 | 31 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 118 | 12 |
| Bupropion Hclbrand: Bupropion Xl | 105 | 14 |
| Mirtazapine | 87 | 16 |
| Gabapentin | 69 | 13 |
| Escitalopram Oxalate | 55 | 13 |
Practice location
Mailing address
Additional practice locations (1)
- 157 Church StNew Haven, CT 06510-2100Phone: (475) 244-7517
Registry dates
- Enumerated
- 2014-04-28
- Last updated
- 2026-01-05
- Certified
- 2026-01-05
Frequently asked questions
- What is Hamilton Gaiani's NPI number?
- Hamilton Gaiani's National Provider Identifier (NPI) is 1508276627, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hamilton Gaiani's specialty?
- Hamilton Gaiani is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Hamilton Gaiani located?
- Hamilton Gaiani's practice location on file with NPPES is 85 N Main St Ste 1038, Branford, CT 06405-3034.
- What is Hamilton Gaiani's phone number?
- The practice phone number listed in the NPPES registry for Hamilton Gaiani is (475) 244-7517.
- Does Hamilton Gaiani accept Medicare?
- Hamilton Gaiani is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hamilton Gaiani's NPI active?
- Yes — Hamilton Gaiani's NPI (1508276627) is active in the NPPES registry as of the last update on 2026-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.