Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Pamela C Sullivan, MD

Internal Medicine Physician in Huntington Beach, CA · enumerated 2007 · practices at Landmark Connect of California PC.

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

National Provider Identifier

1326191107

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Registry record

Entity type Individual (Type 1)

Name Dr. Pamela C Sullivan

Credential MD

Sex Female

Practice address 7755 Center Ave Ste 630, Huntington Beach, CA, 92647

Phone (657) 237-2450

Enumeration date Jan 18, 2007

Last updated in NPPES Mar 10, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD187315 (OR) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 188059 (NY) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 188059 (NY) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 59371 (AZ) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G155173 (CA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 19305 (NV) 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
930079485	Other	NY	RAILROAD MEDICARE
02089325	Medicaid	NY	-

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 Pamela Sullivan?

Pamela Sullivan is registered in NPPES with the primary taxonomy of Internal Medicine 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 2026-03-10.