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

Gregory Bion Bierer, MD

Individual provider Internal Medicine Physician · NPI 1154489433

Gregory Bion Bierer, MD is a Pulmonary Disease in Santa Monica, California. Graduated from New York Medical College in 2000, 26 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
26
Trained at
New York Medical College
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.

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Practice location Address checks out

1223 16th St Ste 3400
Santa Monica, CA 90404-1217
Phone: (310) 449-0939
Fax: (424) 259-7790
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence A77403 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A77403 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence A77403 (CA)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence A77403 (CA)

Record details

NPI number1154489433
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 5, 2006
Last updated in NPPESJanuary 7, 2020
Certification dateJanuary 7, 2020

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 2000 (26 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 locations6 on file with Medicare

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