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Michael Wiederstein, PH.D.
NPI 1609918838 · Psychologist · Elk Grove, CA
Michael Wiederstein, PH.D. is a Psychologist provider in Elk Grove, CA (NPI 1609918838).
Provider details
- NPI number
- 1609918838
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY 11582 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
9120 Trumbauer Way
Elk Grove, CA 95758
Phone: (916) 662-5893
Street-level locationGet directions
Mailing address
9120 Trumbauer Way
Elk Grove, CA 95758
Registry dates
- Enumerated
- 2007-02-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Wiederstein's NPI number?
- Michael Wiederstein's National Provider Identifier (NPI) is 1609918838, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Wiederstein's specialty?
- Michael Wiederstein is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Michael Wiederstein located?
- Michael Wiederstein's practice location on file with NPPES is 9120 Trumbauer Way, Elk Grove, CA 95758.
- What is Michael Wiederstein's phone number?
- The practice phone number listed in the NPPES registry for Michael Wiederstein is (916) 662-5893.
- Is Michael Wiederstein's NPI active?
- Yes — Michael Wiederstein's NPI (1609918838) 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.