Diane Grabowski-Nepa, RD
Registered Dietitian · Santa Rosa Valley, CA
Diane Grabowski-Nepa, RD is a registered dietitian with a practice address in Santa Rosa Valley, California, and NPI 1942651500, issued on Jun 24, 2016. Check the license (California 687215, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diane Grabowski-Nepa
- Credential
- RD
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 687215 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3038 Summit Cir, Santa Rosa Valley, CA 93012
- Phone
- (805) 491-2592
- Enumerated
- Jun 24, 2016
- Record last updated
- Jun 24, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (805) 491-2592
- Medicare enrollment
- Enrolled (PECOS I20240827000563); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest registered dietitian records → All 7,148 in California → Look up another NPI →
Verify Diane Grabowski-Nepa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 687215Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- County OF VenturaVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane Grabowski-Nepa among 7,148 registered dietitian records in California
Diane Grabowski-Nepa, RD is one of 7,148 registered dietitian records with a practice address in California. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 38% of them.
- NPI issued2016 · 38% of these records are older, 58% newer
- In a Medicare fileYes · 5% of these records are
- In the CMS Doctors and Clinicians fileYes · 7% of these records are
- Graduated1983 · median 2014 among the 529 with a school on file
- Record last updated2016 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 registered dietitian record lists a practice address in Santa Rosa Valley
They are 1 of the 10 NPPES records with a practice address in Santa Rosa Valley, and 7,148 registered dietitian records in California.
All 7,148 in California → Every provider in Santa Rosa Valley → Registered Dietitian nationwide →
The 8 registered dietitian records with the nearest ZIP codes
- Olivia Boyd, RDNCamarillo, CA 930121619857331
- Danielle Fatemi, RDNCamarillo, CA 930121407667488
- Jessica Flaherty, RDCamarillo, CA 930121568059418
- Jessica Freese, MS, RDCamarillo, CA 930121679995567
- Brittany Hiton, RDN, CSCSCamarillo, CA 930121720663339
- Mercedes Manzano, REGISTERED DIETITIANCamarillo, CA 930121053680462
- Sharon Simpson, RDNCamarillo, CA 930121386112217
- Caren Thomas, RDN, LDNCamarillo, CA 930121467296293
Common questions
What is Diane Grabowski-Nepa, RD's NPI number?
Diane Grabowski-Nepa, RD's National Provider Identifier (NPI) is 1942651500, issued on Jun 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Diane Grabowski-Nepa, RD located?
The NPPES record lists a practice address at 3038 Summit Cir, Santa Rosa Valley, CA, 93012. Phone: (805) 491-2592. Providers update this record themselves, so call before visiting.
How can I verify Diane Grabowski-Nepa, RD's license?
NPPES lists California license number 687215, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.