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

Dr. Gwynn R Patterson, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1134111941

Dr. Gwynn R Patterson, MD is an Obstetrics/Gynecology in Sierra Vista, Arizona. Graduated from George Washington University School of Medicine in 1980, 46 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
46
Trained at
George Washington University School of Medicine
Licensed in
AZ
In the registry since
2005
Specialties on file
2
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

4990 E Mediterranean Dr Ste C
Sierra Vista, AZ 85635-2494
Phone: (520) 417-2229
Fax: (520) 417-2266
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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 14904 (AZ)
Ph.D. Medical Genetics Taxonomy 170100000X · Licence 14904 (AZ)

Record details

NPI number1134111941
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 17, 2005
Last updated in NPPESJanuary 29, 2026
Certification dateJanuary 29, 2026

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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