Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1831277938 Individual Practitioner Male Practitioner

Dr. David A. Fields , MD

Internal Medicine • Martinez, CA

Professional Overview & Biography Verified Profile Summary

Dr. David Fields, MD is a registered healthcare professional specializing in Internal Medicine in Martinez, CA. Practice services are available at 200 MUIR RD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

200 Muir Rd

Martinez, CA 945534614

Telephone 9253721000
Associated Practice Facility / Clinic
🏢 Kaiser Foundation Hospitals Facility NPI 1295800837

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Martinez, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 26.4 Yrs
State Avg: 26.6 Yrs
Regional Practice Density
51 Specialists

Practicing in Martinez, CA (18502 Statewide)

Telehealth Adoption Rate
11.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA G34612

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
00G346120 (CA)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Dr. Joanne Supersad , MD

Pediatrics - Adolescent Medicine

NPI 1013096148

Doctor of Medicine (M.D.)

Dr. Gordon Weiss , MD

Physical Medicine & Rehabilitation

NPI 1043398126

Doctor of Medicine (M.D.)

Dr. Olga Likhacheva , MD

Internal Medicine

NPI 1053499129

Doctor of Medicine (M.D.)

NPI 1083786735

Doctor of Medicine (M.D.)

Dr. Robert Johnson , MD

Internal Medicine - Hematology & Oncology

NPI 1083792659

Doctor of Medicine (M.D.)

NPI 1093893109

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 200 MUIR RD, MARTINEZ, CA 945534614 (Tel: 9253721000)

📍
Updated Business Mailing Address July 08, 2007

Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123429 (Tel: 5106256262)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as DAVID FIELDS, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (License #G34612 in CA)

🟢
Initial NPI Registration & Enumeration November 02, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1831277938
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: November 02, 2006
Last Update: July 08, 2007
Sole Proprietor: No

Mailing Address

1800 Harrison St Fl 7

Oakland, CA 946123429

Phone: 5106256262

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.