Hamilton Gaiani, M.D.
Psychiatry Physician · Branford, CT
Hamilton Gaiani, M.D. is a psychiatry physician with a practice address in Branford, Connecticut, and NPI 1508276627, issued on Apr 28, 2014. Check the license (Connecticut 1.055620, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Hamilton Gaiani
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 1.055620 CT
Self-reported in NPPES; status is on the state search - Practice location
- 85 N Main St Ste 1038, Branford, CT 06405
- Phone
- (475) 244-7517
- Enumerated
- Apr 28, 2014
- Record last updated
- Jan 5, 2026
- Fax
- (475) 275-7337
- Medicare enrollment
- Enrolled (PECOS I20191108000470); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,174 in Connecticut → Look up another NPI →
Verify Hamilton Gaiani in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 1.055620Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% more Medicare Part D claims than the average psychiatry physician in 2024
1,281 Medicare Part D claims for 103 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Trazodone Hcl122 claims
- Buprenorphine-Naloxone118 claims
- Bupropion Xl105 claims
- Mirtazapine87 claims
- Gabapentin69 claims
- Escitalopram Oxalate55 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 97.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Middlesex HospitalMiddletown, CT · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Hamilton Gaiani among 1,174 psychiatry physician records in Connecticut
Hamilton Gaiani, M.D. is one of 1,174 psychiatry physician records with a practice address in Connecticut. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2014 · median 2003 among the 503 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Connecticut
There are 1,174 psychiatry physician records in Connecticut.
All 1,174 in Connecticut → Every provider in Branford → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Linda Barr, MDNew Haven, CT 064051609964188
- James Ciarcia, MDBranford, CT 064051649428319
- John Gallalee, MDBranford, CT 064051710058318
- David Hendricks, MDBranford, CT 064051952420390
- Haeja Kim, M.D,Branford, CT 064051508037946
- Diana Harbison, MDCenterbrook, CT 064091093878423
- John De Figueiredo, MDCheshire, CT 064101942271739
- Seth Feuerstein, MDCheshire, CT 064101528878105
Common questions
What is Hamilton Gaiani, M.D.'s NPI number?
Hamilton Gaiani, M.D.'s National Provider Identifier (NPI) is 1508276627, issued on Apr 28, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Hamilton Gaiani, M.D. located?
The NPPES record lists a practice address at 85 N Main St Ste 1038, Branford, CT, 06405. Phone: (475) 244-7517. Providers update this record themselves, so call before visiting.
How can I verify Hamilton Gaiani, M.D.'s license?
NPPES lists Connecticut license number 1.055620, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hamilton Gaiani, M.D. prescribe under Medicare Part D?
In 2024, Hamilton Gaiani, M.D. had 1,281 Medicare Part D claims for 103 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Hamilton Gaiani, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.