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

Mark Justin Apfel, MD

Individual provider Family Medicine Physician · NPI 1538219779

Mark Justin Apfel, MD is a Family Practice in Boonville, California. Graduated from State University of New York at Buffalo School of Medicine in 1973, 53 years ago. Practices with Anderson Valley Health Center, a 5-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
53
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
CA
In the registry since
2007
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

13500 Airport Rd
Boonville, CA 95415
Phone: (707) 895-3477
Fax: (707) 895-2035
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence G27316 (CA)

Record details

NPI number1538219779
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 11, 2007
Last updated in NPPESMarch 28, 2012
Mailing address13500 Airport Road, P.O. Box 338, Boonville, CA 95415

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 1973 (53 years in practice)
Group practice Anderson Valley Health Center — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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