Marion Peterson, RN MFT
NPI 1538280854 · Registered Nurse · Walnut Creek, CA
Marion Peterson, RN MFT is a Registered Nurse provider in Walnut Creek, CA (NPI 1538280854).
Provider details
- NPI number
- 1538280854
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Credential
- RN MFT
- Sex
- Female
- Sole proprietor
- No
- License
- MFC 32921 (CA)
Specialties & taxonomies
Nursing Service Providers
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
- 2007-04-03
- Last updated
- 2025-09-11
Frequently asked questions
- What is Marion Peterson's NPI number?
- Marion Peterson's National Provider Identifier (NPI) is 1538280854, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marion Peterson's specialty?
- Marion Peterson is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Marion Peterson located?
- Marion Peterson's practice location on file with NPPES is 1756 Lacassie Avenue, Walnut Creek, CA 94596-7002.
- What is Marion Peterson's phone number?
- The practice phone number listed in the NPPES registry for Marion Peterson is (925) 933-8300.
- Is Marion Peterson's NPI active?
- Yes — Marion Peterson's NPI (1538280854) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.