1. Home
  2. Directory
  3. California
  4. Santa Rosa Valley
  5. Dietitian Registered
  6. NPI Profile

DIANE GRABOWSKI-NEPA RD
NPI 1942651500
Dietitian, Registered in Santa Rosa Valley, CA

Active since June 24, 2016Accepts Medicare Assignment
3038 SUMMIT CIR, SANTA ROSA VALLEY, CA 93012(805) 491-2592(805) 491-2592 Get Directions Write a Review

NPPES record last updated: June 24, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Diane Grabowski-nepa Rd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANE GRABOWSKI-NEPA RD (NPI 1942651500) is an individual dietitian, registered in Santa Rosa Valley, California, licensed in California (687215) and active in the NPI registry since June 2016. She is a graduate of Other (1983).

NPPES Registry Identity

NPI1942651500
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameDIANE GRABOWSKI-NEPACredential: RD
Location Address3038 SUMMIT CIRSanta Rosa Valley, CA 93012-9315
Mailing Address3038 Summit CirSanta Rosa Valley, CA 93012-9315 · (805) 491-2592 · Fax (805) 491-2592
Phone(805) 491-2592
Fax(805) 491-2592
Sole ProprietorNo
Medical School CMSOtherGraduated 1983
Enumeration DateJune 24, 2016
✔ NPI 1942651500 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in CA · 687215
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
3038 SUMMIT CIR, Santa Rosa Valley, CA 93012
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Diane Grabowski-nepa Rd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3375082001
PECOS Enrollment IDI20240827000563

Medicare Billing Reassignment

Medicare enrollment records show Diane Grabowski-nepa reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Ventura
2.5 mi
Federally Qualified Health Center (FQHC)
612 SPRING RD
Moorpark, CA 93021
  • Reassigned Medicare billing, California enrollment
  • 710 clinicians in this Medicare group
NPI 1174764021 (805) 523-5400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93012 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $62.32 – $185.36
Typical copayment $0.00 (range $15.58 – $46.34)
Most-billed visit code NA
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diane Grabowski-nepa's NPI number?

The NPI number for Diane Grabowski-nepa is 1942651500. It was assigned to this individual provider in the NPPES registry on June 24, 2016.

Where is Diane Grabowski-nepa located?

Diane Grabowski-nepa practices at 3038 Summit Cir, Santa Rosa Valley, CA 93012. The listed phone number is (805) 491-2592.

What is Diane Grabowski-nepa's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Diane Grabowski-nepa enrolled in Medicare?

Yes. Diane Grabowski-nepa is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Diane Grabowski-nepa's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Grabowski-nepa reassigns Medicare benefits to County Of Ventura (Moorpark, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diane Grabowski-nepa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Diane Grabowski-nepa was last updated on June 24, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.