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

Dr. Mary Newkirk, MD

Individual provider Internal Medicine Physician · NPI 1124088323

Dr. Mary Newkirk, MD is an Internal Medicine in Saint Helena, California. Graduated from University of Maryland School of Medicine in 1980, 46 years ago. Practices with Quantum Healthcare Medical Associates Inc, a 109-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
46
Trained at
University of Maryland School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

10 Woodland Rd
Saint Helena, CA 94574-9554
Phone: (707) 963-6399
Fax: (707) 967-5915
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 A37632 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A37632 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence A37632 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence A37632 (CA)

Record details

NPI number1124088323
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2006
Last updated in NPPESDecember 1, 2017

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice Quantum Healthcare Medical Associates Inc — 109 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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