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

Individual provider Internal Medicine Physician · NPI 1417586835

Dr. Marilyn Mae McGowan, MD is an Internal Medicine in San Luis Obispo, California. Graduated from Georgetown University School of Medicine in 2020, 6 years ago. Practices with David B. Hammer, a 116-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
6
Trained at
Georgetown University School of Medicine
Licensed in
CA
In the registry since
2020
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

892 Aerovista Pl Ste 210
San Luis Obispo, CA 93401-8054
Phone: (805) 549-8023
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A193400 (CA)

Record details

NPI number1417586835
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 7, 2020
Last updated in NPPESAugust 27, 2024
Certification dateAugust 27, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice David B. Hammer — 116 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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