Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gretchen Marie Potschka, MD

Internal Medicine Physician in Longview, WA · enumerated 2005.

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

National Provider Identifier

1811994718

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Registry record

Entity type Individual (Type 1)

Name Gretchen Marie Potschka

Credential MD

Sex Female

Practice address 1615 Delaware St, Longview, WA, 98632

Phone (360) 414-2385

Fax (360) 414-2386

Enumeration date Jul 7, 2005

Last updated in NPPES Jan 10, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD00042178 (WA) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD00042178 (WA) 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
P00019811	Other	-	RR MEDICARE
171088	Other	WA	LABOR & IND.
8359192	Medicaid	WA	-
226976	Medicaid	OR	-
8932202	Other	WA	CRIME VICTIMS

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 Gretchen Potschka's NPI record?

Cross-check NPI 1811994718 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811994718 active?

Yes, as of the latest NPPES snapshot, NPI 1811994718 is active (record last updated 2013-01-10).

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Lan Pham Internal Medicine Physician · Longview, WA NPI 1548264252 Tsz-Ming Chow Neurology Physician · Longview, WA NPI 1689679714 Lisa Evans Family Medicine Physician · Longview, WA NPI 1891790580 Lawrence Neville Neurology Physician · Longview, WA NPI 1134124639 R. Hughey Internal Medicine Physician · Longview, WA NPI 1316943590 Linda Johnston Adult Health Nurse Practitioner · Longview, WA NPI 1376549337 Leena Carriere Anesthesiology Physician · Longview, WA NPI 1982600805 Michael Bartlett Family Medicine Physician · Longview, WA NPI 1356348502

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-10.