Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gerald Bruce Zelenock, M.D.

Surgery Physician in Toledo, OH · enumerated 2007.

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

National Provider Identifier

1639214034

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Registry record

Entity type Individual (Type 1)

Name Dr. Gerald Bruce Zelenock

Credential M.D.

Sex Male

Practice address 3000 Arlington Ave, Toledo, OH, 43614

Phone (419) 383-3759

Fax (419) 383-3057

Enumeration date Feb 21, 2007

Last updated in NPPES Apr 29, 2008

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 35089295 (OH) Primary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 35089295 (OH) Secondary

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
0694155	Medicaid	OH	-

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

How do I verify Gerald Zelenock's NPI record?

Cross-check NPI 1639214034 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639214034 active?

Yes, as of the latest NPPES snapshot, NPI 1639214034 is active (record last updated 2008-04-29).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-29.