Mary Altenau
NPI 1174716039 · Mental Health Counselor · Sebastopol, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Altenau is a Mental Health Counselor provider in Sebastopol, CA (NPI 1174716039).
Provider details
- NPI number
- 1174716039
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
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
18 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2007-08-23
- Last updated
- 2020-07-20
- Certified
- 2020-07-20
Frequently asked questions
- What is Mary Altenau's NPI number?
- Mary Altenau's National Provider Identifier (NPI) is 1174716039, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Altenau's specialty?
- Mary Altenau is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mary Altenau located?
- Mary Altenau's practice location on file with NPPES is 1800 Gravenstein Hwy N, Sebastopol, CA 95472-2607.
- What is Mary Altenau's phone number?
- The practice phone number listed in the NPPES registry for Mary Altenau is (707) 823-7300.
- Does Mary Altenau accept Medicare?
- Mary Altenau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Altenau's NPI active?
- Yes — Mary Altenau's NPI (1174716039) is active in the NPPES registry as of the last update on 2020-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.