Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald Albert Gullickson, M.D.

Internal Medicine Physician in Lander, WY · enumerated 2006.

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

National Provider Identifier

1497840110

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald Albert Gullickson

Credential M.D.

Sex Male

Practice address 745 Buena Vista Dr, Lander, WY, 82520

Phone (307) 332-2941

Fax (307) 332-2068

Enumeration date Oct 4, 2006

Last updated in NPPES Jan 31, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 2072A (WY) 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
301810	Other	WY	BLUE SHIELD
110055880	Other	-	MEDICARE RAILROAD RETIREM
102799900	Medicaid	WY	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Donald Gullickson?

Donald Gullickson 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.

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.

Other providers at this practice address

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Jan Siebersma Obstetrics & Gynecology Physician · Lander, WY NPI 1952303216 Brian Gee Family Medicine Physician · Lander, WY NPI 1134117039 Shalini Forbis Pediatrics Physician · Lander, WY NPI 1326004391 Robert Darr Physician Assistant · Lander, WY NPI 1942301254 Carol Quillen Physician Assistant · Lander, WY NPI 1093801664 Gentian Scheer Internal Medicine Physician · Lander, WY NPI 1912093667 Douglas Phipps Family Medicine Physician · Lander, WY NPI 1508952276 James Brubaker Obstetrics & Gynecology Physician · Lander, WY NPI 1245326867

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-31.