Donald Ostendorf, MA
NPI 1881735603 · Marriage & Family Therapist · Redding, CA
Donald Ostendorf, MA is a Marriage & Family Therapist provider in Redding, CA (NPI 1881735603).
Provider details
- NPI number
- 1881735603
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MA
- Sex
- Male
- Sole proprietor
- Yes
- License
- MFC30079 (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
19 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
- 2007-02-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Donald Ostendorf's NPI number?
- Donald Ostendorf's National Provider Identifier (NPI) is 1881735603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Ostendorf's specialty?
- Donald Ostendorf is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Donald Ostendorf located?
- Donald Ostendorf's practice location on file with NPPES is 1614 Continental St, Redding, CA 96001-1133.
- What is Donald Ostendorf's phone number?
- The practice phone number listed in the NPPES registry for Donald Ostendorf is (530) 241-5999.
- Is Donald Ostendorf's NPI active?
- Yes — Donald Ostendorf's NPI (1881735603) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.