Dr. Robert Nathan Clapp, M.D.
Dr. Robert Nathan Clapp is a General Practice Physician provider (General Practice) practicing in Oceanside, CA, registered in the NPPES registry with NPI 1689721136 since 2007. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1689721136 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Robert Nathan Clapp |
| Credential | M.D. |
| Sex | Male |
| Practice address | 328 ANGELES ST, Oceanside, CA, 92058 |
| Phone | 7602376958 |
| Enumeration date | 2007-01-05 |
| Last updated in NPPES | 2021-12-20 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | Primary | MD.27192 | AL |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Robert Clapp, M.D. NPI: 1689721136 Taxonomy: 208D00000X (General Practice Physician) Address: 328 ANGELES ST, Oceanside, CA, 92058
Verify this record
Cross-check NPI 1689721136 against the authoritative CMS record: view Dr. Robert Nathan Clapp 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
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Is NPI 1689721136 active?
Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2021-12-20.