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Hamilton Obstetrics & Gynecology,P.C.

Obstetrics & Gynecology Physician in Allentown, PA · enumerated 2006 · authorized official C. Riedel, President.

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

National Provider Identifier

1538123195

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Registry record

Entity type Organization (Type 2)
Legal business name Hamilton Obstetrics & Gynecology,P.C.
Practice address 1941 W Hamilton St, Suite 100, Allentown, PA, 18104
Phone (610) 432-4665
Fax (610) 432-8512
Enumeration date Apr 12, 2006
Last updated in NPPES Jul 26, 2011

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License OS009291L (PA) Primary

Authorized official

Name C. Riedel
Title President
Phone (610) 432-4665

Other identifiers

Identifier Type State Issuer
001755843 00006 Medicaid PA -
001831417 0002 Other PA MEDICAID GROUP

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

Who is the authorized official for Hamilton Obstetrics & Gynecology,P.C.?
NPPES lists C. Riedel (President) as the authorized official for this organization.
What is the NPI number for Hamilton Obstetrics & Gynecology,P.C.?
The NPI for Hamilton Obstetrics & Gynecology,P.C. is 1538123195, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-26.