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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. DAVID CHAPMAN MD
NPI 1578548129
Internal Medicine in Martinez, CA

Active since December 07, 2005PECOS Enrolled
150 MUIR RD, MARTINEZ, CA 94553(925) 372-2000 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. David Chapman Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DAVID CHAPMAN MD (NPI 1578548129) is an individual internal medicine provider in Martinez, California, licensed in California (A048995) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1578548129
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DAVID CHAPMANCredential: MD
Location Address150 MUIR RDMartinez, CA 94553-4668
Mailing Address150 Muir RdMartinez, CA 94553-4668 · (925) 372-2000
Phone(925) 372-2000
Sole ProprietorNo
Enumeration DateDecember 7, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1578548129 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A048995
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
150 MUIR RD, Martinez, CA 94553
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. David Chapman Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94553 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier12 claims12 services$215.65 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SAHIBA SINGH CHOWDHARY PSYD
Psychologist (Clinical)
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 372-2557
NESLIHAN JAMES-KANGAL PHD
Psychologist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 370-4783
NIKKI ALONSO ATIS
Occupational Therapist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 372-2000
DR. BERNADETTE M DUGONI PHARM D
Pharmacist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 372-2390
PAMELA ADHLAKHA
Occupational Therapist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 370-4751
DR. ASHIQ MATHEW GEORGE M.D.
Psychiatry & Neurology (Psychiatry)
150 MUIR RD, MENTAL HEALTH CLINIC (116)
MARTINEZ, CA 94553
Contra Costa County (925) 372-2000
UMELO UGWOABA PHD, MPH
Psychologist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 372-2558
BRENT RICHARD FERM PHD
Psychologist
150 MUIR RD, MENTAL HEALTH
MARTINEZ, CA 94553
Contra Costa County (925) 372-2105

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Chapman's NPI number?

The NPI number for David Chapman is 1578548129. It was assigned to this individual provider in the NPPES registry on December 7, 2005.

Where is David Chapman located?

David Chapman practices at 150 Muir Rd, Martinez, CA 94553. The listed phone number is (925) 372-2000.

What is David Chapman's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is David Chapman enrolled in Medicare?

Yes. David Chapman is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for David Chapman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.