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DIANA B HOLLOWAY MFT
NPI 1659521847
Marriage & Family Therapist in Monte Rio, CA

Active since September 24, 2008PECOS Enrolled
19375 HWY 116, MONTE RIO, CA 95462(707) 865-1200 Get Directions Write a Review

NPPES record last updated: June 27, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Diana B Holloway Mft NPPES

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

DIANA B HOLLOWAY MFT (NPI 1659521847) is an individual marriage & family therapist in Monte Rio, California, licensed in California (52349) and active in the NPI registry since September 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1659521847
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameDIANA B HOLLOWAYCredential: MFT
Location Address19375 HWY 116Monte Rio, CA 95462-0519
Mailing AddressPo Box 519Monte Rio, CA 95462-0519 · (707) 865-1200
Phone(707) 865-1200
Sole ProprietorYes
Medical School CMSOtherGraduated 2008
Enumeration DateSeptember 24, 2008
Last NPPES UpdateJune 27, 2018
✔ NPI 1659521847 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · 52349
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
Also ListedCounselorTaxonomy 101Y00000X
19375 HWY 116, Monte Rio, CA 95462
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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 B Holloway Mft is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7810349909
PECOS Enrollment IDI20240112004200
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Diana Holloway reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Redwood Psychology Center, Inc
Same address
Group Psychotherapy
19375 HWY. 116
Monte Rio, CA 95462
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
NPI 1629196290 (707) 865-1200

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 7

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

MS. MIRA DHYANA WONDERWHEEL
Counselor (Mental Health)
19375 HWY 116
MONTE RIO, CA 95462
Sonoma County (707) 865-1200
GREER STRAATSMA
Marriage & Family Therapist
19375 HWY 116
MONTE RIO, CA 95462
Sonoma County (707) 865-1200
EVAN ROBERT ANATRA AMFT, APCC
Marriage & Family Therapist
19375 HWY 116
MONTE RIO, CA 95462
Sonoma County (707) 865-1200
MS. MAUREEN OLIVE WOLFE RN
Registered Nurse (Psychiatric/Mental Health)
19375 HWY 116, 19375 HIGHWAY 116
MONTE RIO, CA 95462
Sonoma County (707) 865-1200
DR. MAZYAR KARANDISH PSYD
Psychologist (Clinical)
19375 HWY 116
MONTE RIO, CA 95462
Sonoma County (707) 865-1200
ROSEMARY FREEMAN MA
Psychologist (Clinical)
19375 HWY 116
MONTE RIO, CA 95462
Sonoma County (707) 865-1200
REDWOOD PSYCHOLOGY CENTER, INC.
Psychologist (Group Psychotherapy)
19375 HWY 116
MONTE RIO, CA 95462
Sonoma County (707) 865-1200

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 Holloway's NPI number?

The NPI number for Diana Holloway is 1659521847. It was assigned to this individual provider in the NPPES registry on September 24, 2008.

Where is Diana Holloway located?

Diana Holloway practices at 19375 Hwy 116, Monte Rio, CA 95462. The listed phone number is (707) 865-1200.

What is Diana Holloway's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Diana Holloway enrolled in Medicare?

Yes. Diana Holloway is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diana Holloway's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Holloway reassigns Medicare benefits to Redwood Psychology Center, Inc (Monte Rio, 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 Diana Holloway'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 Holloway was last updated on June 27, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.