Michael J Sinclair, MD
Michael J Sinclair is a Pediatrics Physician provider (Pediatrics) practicing in Walnut Creek, CA, registered in the NPPES registry with NPI 1851590764 since 2007. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1851590764 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Michael J Sinclair |
| Credential | MD |
| Sex | Male |
| Practice address | Walnut Creek, CA, 94598 |
| Phone | 9259308200 |
| Enumeration date | 2007-07-12 |
| Last updated in NPPES | 2007-07-12 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208000000X | Pediatrics Physician | Primary | G55296 | 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 |
|---|---|---|---|
| 00G552960 | Medicaid | CA | — |
Copy-ready billing details
Provider: Michael Sinclair, MD NPI: 1851590764 Taxonomy: 208000000X (Pediatrics Physician) Address: Walnut Creek, CA, 94598
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1316932965 | Eric Buadu | Individual | Critical Care Medicine (Internal Medicine) Physician | Walnut Creek, CA |
| 1053307454 | Sierra Surgicenter | Organization | Ambulatory Surgical Clinic/Center | Walnut Creek, CA |
| 1780648766 | Molly Honegger | Individual | Diagnostic Radiology Physician | Walnut Creek, CA |
| 1982660080 | Stacie Bennett | Individual | Neonatal-Perinatal Medicine Physician | Walnut Creek, CA |
| 1619934692 | Jennifer Levy | Individual | Neonatal-Perinatal Medicine Physician | Walnut Creek, CA |
| 1235184110 | John Muir Magnetic Imaging Center | Organization | Diagnostic Radiology Physician | Walnut Creek, CA |
| 1073551057 | Kirkman Beckwith | Individual | Anesthesiology Physician | Walnut Creek, CA |
| 1255379624 | Radhika Annadata | Individual | Anesthesiology Physician | Walnut Creek, CA |
Verify this record
Cross-check NPI 1851590764 against the authoritative CMS record: view Michael J Sinclair 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 Michael Sinclair?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-12.