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

Individual provider Obstetrics & Gynecology Physician · NPI 1114155496

Dr. Mark Alan Fierro, MD is an Obstetrics/Gynecology in Los Gatos, California. Graduated from Saint Louis University School of Medicine in 2009, 17 years ago. Practices with Obstetrix Medical Group of California a Professional Corporation, a 15-clinician group. Licensed in California and Missouri.

Years since qualifying
17
Trained at
Saint Louis University School of Medicine
Licensed in
CA, MO
In the registry since
2009
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

15251 National Ave Ste 106
Los Gatos, CA 95032-2400
Phone: (408) 356-5111
Fax: (408) 356-0654
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Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence A124997 (CA)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 2009015668 (MO)

Record details

NPI number1114155496
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 25, 2009
Last updated in NPPESAugust 11, 2013
Mailing address15251 National Ave, Suite 106, Los Gatos, CA 95032-2400

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Obstetrix Medical Group Of California A Professional Corporation — 15 clinicians
Accepts Medicare assignment Not indicated

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