Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrea L Allyn, M.D.

Internal Medicine Physician in Seneca, SC · enumerated 2006.

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

National Provider Identifier

1851363733

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Registry record

Entity type Individual (Type 1)

Name Andrea L Allyn

Credential M.D.

Sex Female

Practice address 10110 Clemson Blvd, Seneca, SC, 29678

Phone (864) 482-0500

Fax (864) 482-0505

Enumeration date Feb 3, 2006

Last updated in NPPES Jul 23, 2014

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 30703 (SC) Primary

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
AA2717	Other	SC	MEDICARE PTAN
000222285E	Medicaid	GA	-
1851363733	Medicaid	SC	-

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 NPI 1851363733 active?

Yes, as of the latest NPPES snapshot, NPI 1851363733 is active (record last updated 2014-07-23).

How do I verify Andrea Allyn's NPI record?

Cross-check NPI 1851363733 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-23.