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

Dr. Barnett J. W. Grier Jr., MD

Individual provider Family Medicine Physician · NPI 1932233665

Dr. Barnett J. W. Grier Jr., MD is registered under Family Practice in Los Angeles, California. Graduated from University of California, Geffen School of Medicine in 1968, 58 years ago. Practices with Eastern Plumas Health Care District, a 32-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
58
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2007
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

231 W Vernon Ave Ste 201
Los Angeles, CA 90037-2779
Phone: (323) 828-7929
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 14718 Hawthorne Blvd, Lawndale, CA 90260-1523 — (323) 828-7929
  • 480 1st Ave, Portola, CA 96122-9405 — (530) 832-6600

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A23617 (CA)
Family Medicine Physician Taxonomy 207Q00000X · Licence A23617 (CA)

Record details

NPI number1932233665
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 15, 2007
Last updated in NPPESJuly 10, 2022
Certification dateJuly 10, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1968 (58 years in practice)
Group practice Eastern Plumas Health Care District — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients393
Services billed 863 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Eastern Plumas Health Care District

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 32 clinicians in the practice; 12 are shown here.

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