Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Timothy C Thunder, MD

Internal Medicine Physician in Portland, OR · enumerated 2006.

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

National Provider Identifier

1417980848

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Registry record

Entity type Individual (Type 1)

Name Timothy C Thunder

Credential MD

Sex Male

Practice address 800 Sw 13th Ave, Portland, OR, 97205

Phone (503) 221-0161

Enumeration date Jul 9, 2006

Last updated in NPPES Nov 25, 2020

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License MD22487 (OR) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD22487 (OR) 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
110219893	Other	OR	RR MEDICARE - PHS
288357	Medicaid	OR	-

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 Timothy Thunder?

Timothy Thunder 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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Cristina Fe Mondragon Internal Medicine Physician · Portland, OR NPI 1235129891 Young Choi Gastroenterology Physician · Portland, OR NPI 1336122274 Mural Nishikawa Internal Medicine Physician · Portland, OR NPI 1700869286 Ronald Allen Ophthalmology Physician · Portland, OR NPI 1376516294 Curtis Persons Physical Therapist · Portland, OR NPI 1891733317 Jody Pettit Internal Medicine Physician · Portland, OR NPI 1063447100 Amy Mulcaster Gynecology Physician · Portland, OR NPI 1063439644 Lia Yamamoto Physical Therapist · Portland, OR NPI 1750304689

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-25.