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

Dr. Andrew Mark Gregg, MDPHD

Individual provider Gastroenterology Physician · NPI 1942769104

Dr. Andrew Mark Gregg, MDPHD is a Gastroenterology in Thousand Oaks, California. Qualified in 2019, 7 years ago. Practices with The Regents of the University of California, a 1,414-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
7
Licensed in
CA
In the registry since
2019
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Practice location Address checks out

248 Hampshire Rd Ste 200
Thousand Oaks, CA 91361-2401
Phone: (805) 370-0127
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A177654 (CA)

Record details

NPI number1942769104
Entity typeIndividual (Type 1)
GenderMale
Credentials MDPHD
Sole proprietorYes
NPI enumeratedMarch 18, 2019
Last updated in NPPESAugust 4, 2025
Certification dateAugust 4, 2025
Mailing address5767 W Century Blvd Ste 400, Los Angeles, CA 90045-5631

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice The Regents Of The University Of California — 1414 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

Other providers in Thousand Oaks