Mary Timmerman, FNP
NPI 1427485465 · Primary Care Nurse Practitioner · Petaluma, CA
Mary Timmerman, FNP is a Primary Care Nurse Practitioner provider in Petaluma, CA (NPI 1427485465).
Provider details
- NPI number
- 1427485465
- Entity type
- Individual
- Primary specialty
- Primary Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 18181 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
- 2013-10-05
- Last updated
- 2013-10-05
Frequently asked questions
- What is Mary Timmerman's NPI number?
- Mary Timmerman's National Provider Identifier (NPI) is 1427485465, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Timmerman's specialty?
- Mary Timmerman is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Timmerman located?
- Mary Timmerman's practice location on file with NPPES is 715 Southpoint Blvd, Petaluma, CA 94954-6835.
- What is Mary Timmerman's phone number?
- The practice phone number listed in the NPPES registry for Mary Timmerman is (707) 778-6019.
- Is Mary Timmerman's NPI active?
- Yes — Mary Timmerman's NPI (1427485465) is active in the NPPES registry as of the last update on 2013-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.