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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DARWIN PETERSEN
NPI 1619931508
Internal Medicine in Everett, WA

Active since April 17, 2006
3901 HOYT AVE, EVERETT, WA 98201(425) 259-0966 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Darwin Petersen NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DARWIN PETERSEN (NPI 1619931508) is an individual internal medicine provider in Everett, Washington, licensed in Washington (13479) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1619931508
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDARWIN PETERSEN
Location Address3901 HOYT AVEEverett, WA 98201-4918
Mailing Address3901 Hoyt AveEverett, WA 98201-4918
Phone(425) 259-0966
Sole ProprietorNo
Enumeration DateApril 17, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1619931508 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WA · 13479
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3901 HOYT AVE, Everett, WA 98201
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KELVIN KARL YU WONG M.D.
Family Medicine
3901 HOYT AVE
EVERETT, WA 98201
Snohomish County (425) 259-0966
SIYI CAO NP
Nurse Practitioner (Family)
3901 HOYT AVE
EVERETT, WA 98201
Snohomish County (425) 259-0966
SANDRA LIU MD
Pediatrics
3901 HOYT AVE
EVERETT, WA 98201
Snohomish County (425) 259-0966
MAHESH MULUMUDI
Internal Medicine (Interventional Cardiology)
3901 HOYT AVE
EVERETT, WA 98201
Snohomish County (425) 339-5411
CHRISTOPHER ANTHONY BELLOTTI M.D.
Pediatrics (Pediatric Cardiology)
3901 HOYT AVE
EVERETT, WA 98201
Snohomish County (425) 339-5411
TAISHA DOO
Family Medicine (Geriatric Medicine)
3901 HOYT AVE
EVERETT, WA 98201
Snohomish County (425) 339-5456
CATHY FRITCHEN MD
Internal Medicine (Rheumatology)
3901 HOYT AVE
EVERETT, WA 98201
Snohomish County (425) 339-5445
PEGGY O SHORTT ARNP
Nurse Practitioner
3901 HOYT AVE
EVERETT, WA 98201
Snohomish County (425) 339-5412

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Darwin Petersen's NPI number?

The NPI number for Darwin Petersen is 1619931508. It was assigned to this individual provider in the NPPES registry on April 17, 2006.

Where is Darwin Petersen located?

Darwin Petersen practices at 3901 Hoyt Ave, Everett, WA 98201. The listed phone number is (425) 259-0966.

What is Darwin Petersen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Darwin Petersen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.