George Hancock Kowallis, M.D.
Psychiatry Physician · New York, NY
George Hancock Kowallis, M.D. is a psychiatry physician with a practice address in New York, New York, and NPI 1962556340, issued on Jan 22, 2007. Check the license (New York MD115904-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- George Hancock Kowallis
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD115904-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 162 W 56TH St, New York, NY 10019
- Phone
- (212) 757-0324
- Enumerated
- Jan 22, 2007
- Record last updated
- Dec 28, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (212) 757-0324
- Medicare enrollment
- Enrolled (PECOS I20090316000002); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 1969
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 6,589 in New York → Look up another NPI →
Also registered at 162 W 56TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify George Hancock Kowallis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license MD115904-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average psychiatry physician in 2024
246 Medicare Part D claims for 21 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam33 claims
- Olanzapine26 claims
- Dextroamphetamine-Amphetamine12 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.
George Hancock Kowallis among 6,589 psychiatry physician records in New York
George Hancock Kowallis, M.D. is one of 6,589 psychiatry physician records with a practice address in New York. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 44% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1969 · median 2002 among the 2,559 with a school on file
- Record last updated2010 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,604 psychiatry physician records list a practice address in New York
They are 2,604 of the 98,468 NPPES records with a practice address in New York, and 6,589 psychiatry physician records in New York.
All 6,589 in New York → Every provider in New York → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Scott Cutler, M.D.New York, NY 100191700811957
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- Jeffrey Fishberger, M.D.,New York, NY 100191821014705
- Richard Gersh, M.D.New York, NY 100191942247994
- Stephen Glassberg, M.D.New York, NY 100191932212149
- Ingrid Kemperman, M.D.New York, NY 100191578581062
- Jack Kohl, M.D.New York, NY 100191508961806
- Christine Lay, M.D., FRCPCNew York, NY 100191235116815
Common questions
What is George Hancock Kowallis, M.D.'s NPI number?
George Hancock Kowallis, M.D.'s National Provider Identifier (NPI) is 1962556340, issued on Jan 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is George Hancock Kowallis, M.D. located?
The NPPES record lists a practice address at 162 W 56TH St, New York, NY, 10019. Phone: (212) 757-0324. Providers update this record themselves, so call before visiting.
How can I verify George Hancock Kowallis, M.D.'s license?
NPPES lists New York license number MD115904-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does George Hancock Kowallis, M.D. prescribe under Medicare Part D?
In 2024, George Hancock Kowallis, M.D. had 246 Medicare Part D claims for 21 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
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.