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

Dr. Leo George Dorozynsky

Psychiatry Physician in Lancaster, PA · enumerated 2005 · practices at Lancaster General Medical Group.

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

National Provider Identifier

1528068137

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Registry record

Entity type Individual (Type 1)

Name Dr. Leo George Dorozynsky

Sex Male

Practice address Lancaster, PA, 17602

Phone (717) 560-3782

Fax (717) 560-3787

Enumeration date Jul 26, 2005

Last updated in NPPES Jun 12, 2012

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

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD022640E (PA) Primary

Other identifiers

Identifier	Type	State	Issuer
1013335980001	Medicaid	PA	-
1227224	Medicaid	PA	-

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Leo Dorozynsky?

Leo Dorozynsky is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-12.