Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gretchen Marie Fermann, M.D.

Obstetrics & Gynecology Physician in Cincinnati, OH · enumerated 2005.

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

National Provider Identifier

1255334553

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Registry record

Entity type Individual (Type 1)

Name Dr. Gretchen Marie Fermann

Credential M.D.

Sex Female

Practice address 7495 State Rd, Ste 325, Cincinnati, OH, 45255

Phone (513) 233-2000

Fax (513) 624-2684

Enumeration date May 31, 2005

Last updated in NPPES Nov 17, 2025

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 35069974 (OH) Primary

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

Other identifiers

Identifier	Type	State	Issuer
0701495	Other	OH	UNITED HEALTHCARE
160047214	Other	OH	MEDICARE RAILROAD
2158940	Other	OH	AETNA
000000074188	Other	OH	ANTHEM
30272773005	Other	OH	MEDICAL MUTUAL
30272773006	Other	OH	MEDICAL MUTUAL
311575051038	Other	OH	CARESOURCE
287938	Other	OH	AMERIGROUP
69974	Other	OH	HUMANA

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 NPI 1255334553 active?

Yes, as of the latest NPPES snapshot, NPI 1255334553 is active (record last updated 2025-11-17).

How do I verify Gretchen Fermann's NPI record?

Cross-check NPI 1255334553 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-17.