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

John Charles Gustafson, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1003836016

John Charles Gustafson, MD is an Obstetrics/Gynecology in Ventura, California. Graduated from University of Rochester School of Medicine and Dentistry in 1977, 49 years ago. Practices with Community Memorial Health System, a 187-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
49
Trained at
University of Rochester School of Medicine and Dentistry
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

2795 Loma Vista Rd
Ventura, CA 93003-1544
Phone: (805) 643-8695
Fax: (805) 643-2087
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence G36782 (CA)

Record details

NPI number1003836016
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 20, 2006
Last updated in NPPESJuly 9, 2007
Mailing address2795 Loma Vista Rd, Ventura, CA 93003-1544

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 1977 (49 years in practice)
Group practice Community Memorial Health System — 187 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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