Diana B. Holloway, MFT
Marriage & Family Therapist · Monte Rio, CA
Diana B. Holloway, MFT is a marriage & family therapist with a practice address in Monte Rio, California, and NPI 1659521847, issued on Sep 24, 2008. Check the license (California 52349, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana B. Holloway
- Credential
- MFT
- Primary taxonomy
- Marriage & Family Therapist 106H00000X
- License number
- 52349 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19375 Hwy 116, Monte Rio, CA 95462
- Phone
- (707) 865-1200
- Enumerated
- Sep 24, 2008
- Record last updated
- Jun 27, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20240112004200); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest marriage & family therapist records → All 59,889 in California → Look up another NPI →
Also registered at 19375 Hwy 116
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evan Anatra, AMFT, APCCMarriage & Family Therapist1609740687
- Rosemary Freeman, MAClinical Psychologist1750916789
- Mazyar Karandish, PSYDClinical Psychologist1699377606
- Greer StraatsmaMarriage & Family Therapist1154006039
- Maureen Wolfe, RNPsychiatric/Mental Health Registered Nurse1629291471
- Mira WonderwheelMental Health Counselor1053758474
Verify Diana B. Holloway in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 52349Check 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
- Redwood Psychology Center IncMonte Rio, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana B. Holloway among 59,889 marriage & family therapist records in California
Diana B. Holloway, MFT is one of 59,889 marriage & family therapist records with a practice address in California. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 23% of them.
- NPI issued2008 · 23% of these records are older, 73% newer
- In a Medicare fileYes · 4% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated2008 · median 2013 among the 4,574 with a school on file
- Record last updated2018 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 106H00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 marriage & family therapist records list a practice address in Monte Rio
They are 6 of the 25 NPPES records with a practice address in Monte Rio, and 59,889 marriage & family therapist records in California.
All 59,889 in California → Every provider in Monte Rio → Marriage & Family Therapist nationwide →
The 8 marriage & family therapist records with the nearest ZIP codes
- Evan Anatra, AMFT, APCCMonte Rio, CA 954621609740687
- Jeffrey Cotton, MFTMonte Rio, CA 954621598018426
- Judith Day, M.A., MFTMonte Rio, CA 954621649316274
- Greer StraatsmaMonte Rio, CA 954621154006039
- Carl CombsMonte Rio, CA 954631528225786
- Elizabeth Montgomery, MFTMiddletown, CA 954611558418483
- Joan Faber, MFTMendocino, CA 954601760681795
- Richard Halverson-Muenzer, LMFTNice, CA 954641588868723
Common questions
What is Diana B. Holloway, MFT's NPI number?
Diana B. Holloway, MFT's National Provider Identifier (NPI) is 1659521847, issued on Sep 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Diana B. Holloway, MFT located?
The NPPES record lists a practice address at 19375 Hwy 116, Monte Rio, CA, 95462. Phone: (707) 865-1200. Providers update this record themselves, so call before visiting.
How can I verify Diana B. Holloway, MFT's license?
NPPES lists California license number 52349, 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.