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DIANA K FENSTERMACHER RITCHIE
NPI 1790443109
Chiropractor in Eureka, CA

Active since December 02, 2021
1775 HARRISON AVE, EUREKA, CA 95501(707) 445-8080 Get Directions Write a Review

NPPES record last updated: December 2, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Diana K Fenstermacher Ritchie NPPES

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

DIANA K FENSTERMACHER RITCHIE (NPI 1790443109) is an individual chiropractor in Eureka, California, licensed in California (36096) and active in the NPI registry since December 2021.

NPPES Registry Identity

NPI1790443109
Entity TypeIndividualFemale
Primary Taxonomy111N00000X
Provider Legal NameDIANA K FENSTERMACHER RITCHIE
Location Address1775 HARRISON AVEEureka, CA 95501-1338
Mailing Address1775 Harrison AveEureka, CA 95501-1338 · (707) 445-8080
Phone(707) 445-8080
Sole ProprietorNo
Enumeration DateDecember 2, 2021
NPPES CertifiedDecember 2, 2021
✔ NPI 1790443109 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in CA · 36096
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
1775 HARRISON AVE, Eureka, CA 95501
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diana K Fenstermacher Ritchie is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

2

Medicare enrollment records show Diana Fenstermacher Ritchie reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Active Care Chiropractic, Fogg Professional Corporation
Same address
Chiropractor
1775 HARRISON AVE
Eureka, CA 95501
  • Reassigned Medicare billing, California enrollment
  • 6 clinicians in this Medicare group
NPI 1356707772 (707) 445-8080
Open Door Community Health Centers
0.4 mi
Federally Qualified Health Center (FQHC)
2426 BUHNE ST
Eureka, CA 95501
  • Reassigned Medicare billing, California enrollment
  • 175 clinicians in this Medicare group
NPI 1336173020 (707) 442-4038

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

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REBECCA GRANDE
Massage Therapist
1775 HARRISON AVE
EUREKA, CA 95501
Humboldt County (707) 445-8080
STEVEN MICHAEL KOONTZ
Massage Therapist
1775 HARRISON AVE
EUREKA, CA 95501
Humboldt County (707) 445-8080
MARCO BRINE
Chiropractor
1775 HARRISON AVE
EUREKA, CA 95501
Humboldt County (707) 445-8080
ACTIVE CARE CHIROPRACTIC, FOGG PROFESSIONAL CORPORATION
Chiropractor
1775 HARRISON AVE
EUREKA, CA 95501
Humboldt County (707) 445-8080
BELLINGER CHIROPRACTIC CORPORATION
Chiropractor
1775 HARRISON AVE
EUREKA, CA 95501
Humboldt County (707) 445-8080
ELIZABETH ANNE SAVOCA FOGG MA, LMFT
Marriage & Family Therapist
1775 HARRISON AVE
EUREKA, CA 95501
Humboldt County (707) 445-8080
DR. ANDREW W FOGG D.C.
Chiropractor
1775 HARRISON AVE
EUREKA, CA 95501
Humboldt County (707) 445-8080
ADAM MESTER
Massage Therapist
1775 HARRISON AVE
EUREKA, CA 95501
Humboldt County (707) 445-8080

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 Diana Fenstermacher Ritchie's NPI number?

The NPI number for Diana Fenstermacher Ritchie is 1790443109. It was assigned to this individual provider in the NPPES registry on December 2, 2021.

Where is Diana Fenstermacher Ritchie located?

Diana Fenstermacher Ritchie practices at 1775 Harrison Ave, Eureka, CA 95501. The listed phone number is (707) 445-8080.

What is Diana Fenstermacher Ritchie's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Diana Fenstermacher Ritchie enrolled in Medicare?

Yes. Diana Fenstermacher Ritchie is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Diana Fenstermacher Ritchie's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Fenstermacher Ritchie reassigns Medicare benefits to 2 organizations: Active Care Chiropractic, Fogg Professional Corporation (Eureka, CA) and Open Door Community Health Centers (Eureka, CA). Each 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 Diana Fenstermacher Ritchie'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 Diana Fenstermacher Ritchie was last updated on December 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.