NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Regina T Sullivan, M.D.,FACOG

Obstetrics Physician in Phillipsburg, NJ · enumerated 2006 · practices at Warren Ob-Gyn Associates.

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

National Provider Identifier

1972687473

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Registry record

Entity type Individual (Type 1)
Name Dr. Regina T Sullivan
Credential M.D.,FACOG
Sex Female
Practice address Phillipsburg, NJ, 08865
Phone (908) 859-5308
Fax (908) 859-5251
Enumeration date Oct 24, 2006
Last updated in NPPES Feb 4, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207VX0000X Obstetrics Physician Allopathic & Osteopathic Physicians · License MA67679 (NJ) Primary
207VX0000X Obstetrics Physician Allopathic & Osteopathic Physicians · License MD68031L (PA) 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
7715609 Medicaid NJ -

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 Regina Sullivan?
Regina Sullivan is registered in NPPES with the primary taxonomy of Obstetrics Physician. 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 2022-02-04.