Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William V Hahn, MD

Individual provider Gastroenterology Physician · NPI 1033227582

William V Hahn, MD is a Gastroenterology in Santa Barbara, California. Graduated from University of Washington School of Medicine in 1971, 55 years ago. Practices with Sansum Clinic, a 320-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
55
Trained at
University of Washington School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

317 W Pueblo St
Santa Barbara, CA 93105-4355
Phone: (805) 681-1761
Fax: (805) 681-1768
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G24182 (CA)

Record details

NPI number1033227582
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 25, 2006
Last updated in NPPESMay 21, 2008
Mailing addressPo Box 62106, Santa Barbara, CA 93160-2106

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1971 (55 years in practice)
Group practice Sansum Clinic — 320 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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