Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Erin Lea Koster, MD

Maternal & Fetal Medicine Physician in Frisco, TX · enumerated 2006.

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

National Provider Identifier

1902875958

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Registry record

Entity type Individual (Type 1)

Name Dr. Erin Lea Koster

Credential MD

Sex Female

Practice address 4645 Avon Lane, Suite 180b, Frisco, TX, 75033

Phone (972) 704-1318

Fax (972) 987-5507

Enumeration date Mar 14, 2006

Last updated in NPPES Jul 22, 2020

Taxonomy & licenses

207VM0101X Maternal & Fetal Medicine Physician Allopathic & Osteopathic Physicians · License K3562 (TX) 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
144451504	Medicaid	TX	-
8U2081	Other	TX	BCBS

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

How do I verify Erin Koster's NPI record?

Cross-check NPI 1902875958 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1902875958 active?

Yes, as of the latest NPPES snapshot, NPI 1902875958 is active (record last updated 2020-07-22).

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Marisa Thompson Professional Counselor · Frisco, TX NPI 1043004872

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-22.