DR. DAVID ROY GILLIAM (M.D.) – Family Medicine Physician, NPI 1376526236

DR. DAVID ROY GILLIAM (M.D.) is a healthcare provider. based in Fairfield, California. specializing in Family Medicine Physician. They hold the professional credentials M.D.. They hold a License No. G36497 (CA). The NPI Number for DR. DAVID ROY GILLIAM (M.D.) is 1376526236

Main info

Male
Sole Proprietor
49 Years Of Experience
Name
DR. DAVID ROY GILLIAM (M.D.)
NPI
1376526236
Phone
(707) 428-4878
Address
1620 PENNSYLVANNIA AVE
Enumeration Date
23 November 2005
Last Update Date
27 June 2014

Doctor Profile

Medical School Name
OTHER
Secondary Phone
-
Graduation Year
1977 (49 years ago)
PAC ID
9335146406
Professional Enrollment ID
I20061102000303
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

Provider Addresses for DR. DAVID ROY GILLIAM (M.D.)

  • 1620 PENNSYLVANNIA AVE

    STE C

    FAIRFIELD, CA 945333509

    Phone: (707) 428-4878

    Fax: (707) 428-0806

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 94533)

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Reviews

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Frequently asked questions

How do payers reference DR. DAVID ROY GILLIAM (M.D.)?
For DR. DAVID ROY GILLIAM (M.D.), use NPI 1376526236 as the unique 10-digit identifier.
Would DR. DAVID ROY GILLIAM (M.D.) appear as active to a payer?
You can treat DR. DAVID ROY GILLIAM (M.D.) as active for directory purposes; confirm clinical privileges separately.
How would a patient describe DR. DAVID ROY GILLIAM (M.D.)'s focus?
For DR. DAVID ROY GILLIAM (M.D.), the primary taxonomy reads as Family Medicine Physician. Clinical services aligned with this taxonomy classification.
What practice footprint exists for DR. DAVID ROY GILLIAM (M.D.)?
Travel planning: use Fairfield, California as the reference point for DR. DAVID ROY GILLIAM (M.D.), then confirm.
Can I trust this NPI listing for DR. DAVID ROY GILLIAM (M.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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