Donald Wallach, MFT
NPI 1902844244 · Marriage & Family Therapist · Petaluma, CA
Donald Wallach, MFT is a Marriage & Family Therapist provider in Petaluma, CA (NPI 1902844244).
Provider details
- NPI number
- 1902844244
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 34379 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2025-01-14
- Certified
- 2025-01-14
Frequently asked questions
- What is Donald Wallach's NPI number?
- Donald Wallach's National Provider Identifier (NPI) is 1902844244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Wallach's specialty?
- Donald Wallach is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Donald Wallach located?
- Donald Wallach's practice location on file with NPPES is 222 Weller St Ste 205, Petaluma, CA 94952-7107.
- What is Donald Wallach's phone number?
- The practice phone number listed in the NPPES registry for Donald Wallach is (707) 583-2305.
- Is Donald Wallach's NPI active?
- Yes — Donald Wallach's NPI (1902844244) is active in the NPPES registry as of the last update on 2025-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.