Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. George Hancock Kowallis, M.D.

Psychiatry Physician in New York, NY · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1962556340

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. George Hancock Kowallis

Credential M.D.

Sex Male

Practice address New York, NY, 10019

Phone (212) 757-0324

Fax (212) 757-0324

Enumeration date Jan 22, 2007

Last updated in NPPES Dec 28, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD115904-1 (NY) Primary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License MD115904-1 (NY) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify George Kowallis's NPI record?

Cross-check NPI 1962556340 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1962556340 active?

Yes, as of the latest NPPES snapshot, NPI 1962556340 is active (record last updated 2010-12-28).

Other providers at this practice address

Browse all →

Charlotte Schwartz Clinical Social Worker · New York, NY NPI 1689775538 Janet Humphrey Acupuncturist · New York, NY NPI 1316004146 Jason Gordon Chiropractor · New York, NY NPI 1518024769 Rosemarie How Periodontics · New York, NY NPI 1477607976 Joseph Gulbenkian Dentist · New York, NY NPI 1962523316 James Mcquade Psychologist · New York, NY NPI 1013132927 Genevieve Kinney General Practice Dentistry · New York, NY NPI 1184845968 Leonila Maglilong Dentist · New York, NY NPI 1326254350

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-28.