Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dennis P. Sullivan, M.D., Inc.

Q: What is the NPI number for Dennis P. Sullivan, M.D., Inc.?

The NPI for Dennis P. Sullivan, M.D., Inc. is 1477653897, a Type 2 (organization) record in the CMS NPPES registry.

Specialist in Springfield, OH · enumerated 2006 · authorized official Dennis Sullivan, Physician.

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

National Provider Identifier

1477653897

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Registry record

Entity type Organization (Type 2)

Legal business name Dennis P. Sullivan, M.D., Inc.

Practice address 30 W. Mccreight Ave Ste 103, Springfield, OH, 45504

Phone (937) 399-8921

Fax (937) 629-9248

Enumeration date Sep 25, 2006

Last updated in NPPES Feb 1, 2010

Taxonomy & classification

174400000X Specialist Other Service Providers · License 35-037690 (OH) Primary

Authorized official

Name Dennis Sullivan

Title Physician

Phone (937) 399-8921

Other identifiers

Identifier	Type	State	Issuer
2945273	Medicaid	OH	-
SU4262411	Other	OH	MEDICARE PTAN

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Dennis P. Sullivan, M.D., Inc.?

NPPES lists Dennis Sullivan (Physician) as the authorized official for this organization.

What is the NPI number for Dennis P. Sullivan, M.D., Inc.?

The NPI for Dennis P. Sullivan, M.D., Inc. is 1477653897, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-01.