David A. Fields, MD
David A. Fields is a Internal Medicine Physician provider (Internal Medicine) practicing in Martinez, CA, registered in the NPPES registry with NPI 1831277938 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1831277938 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | David A. Fields |
| Credential | MD |
| Sex | Male |
| Practice address | 200 MUIR RD, Martinez, CA, 94553 |
| Phone | 9253721000 |
| Enumeration date | 2006-11-02 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Primary | G34612 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00G346120 | Medicaid | CA | — |
Copy-ready billing details
Provider: David Fields, MD NPI: 1831277938 Taxonomy: 207R00000X (Internal Medicine Physician) Address: 200 MUIR RD, Martinez, CA, 94553
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1629060322 | Bonnalyn Martino | Individual | Adult Health Nurse Practitioner | Martinez, CA |
| 1780676247 | Larry Cooperider | Individual | Family Nurse Practitioner | Martinez, CA |
| 1275643595 | Mary Gates | Individual | Nurse Practitioner | Martinez, CA |
| 1881704120 | Carolyn Mueller | Individual | Women's Health Nurse Practitioner | Martinez, CA |
| 1922180157 | Eric Alexander | Individual | Neuromuscular Medicine (Physical Medicine & Rehabilitation) Physician | Martinez, CA |
| 1447333497 | Huy Dao | Individual | Obstetrics & Gynecology Physician | Martinez, CA |
| 1255419735 | Albert Palitz | Individual | Gastroenterology Physician | Martinez, CA |
| 1871671362 | Terence Heywood | Individual | Gastroenterology Physician | Martinez, CA |
Verify this record
Cross-check NPI 1831277938 against the authoritative CMS record: view David A. Fields on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What specialty is David Fields?
Is this the official NPI registry?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.