Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Alan Otto, PA-C

Physician Assistant in Toledo, OH · enumerated 2007.

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

National Provider Identifier

1043340797

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Registry record

Entity type Individual (Type 1)

Name Gregory Alan Otto

Credential PA-C

Sex Male

Practice address 1125 Hospital Dr Fl 1, Toledo, OH, 43614

Phone (419) 383-3761

Fax (419) 383-2932

Enumeration date Mar 6, 2007

Last updated in NPPES Jan 14, 2026

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 50.002057RX (OH) Primary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 2057 (OH) Secondary

Other identifiers

Identifier	Type	State	Issuer
0697724	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

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 Gregory Otto?

Gregory Otto is registered in NPPES with the primary taxonomy of Physician Assistant. 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 2026-01-14.