Sonja Cahoon, CNM
NPI 1902104250 · Registered Nurse · Fairfield, CA
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonja Cahoon, CNM is a Registered Nurse provider in Fairfield, CA (NPI 1902104250).
Provider details
- NPI number
- 1902104250
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Nursing Service Providers
- Advanced Practice Midwife367A00000X
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
15 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 27287 Patrick AveHayward, CA 94544-4405Phone: (408) 795-3600Fax: (408) 287-0405
Registry dates
- Enumerated
- 2011-03-10
- Last updated
- 2025-08-05
- Certified
- 2025-08-01
Frequently asked questions
- What is Sonja Cahoon's NPI number?
- Sonja Cahoon's National Provider Identifier (NPI) is 1902104250, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonja Cahoon's specialty?
- Sonja Cahoon is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Sonja Cahoon located?
- Sonja Cahoon's practice location on file with NPPES is 2101 Courage Dr, Fairfield, CA 94533-6717.
- What is Sonja Cahoon's phone number?
- The practice phone number listed in the NPPES registry for Sonja Cahoon is (707) 428-1131.
- Does Sonja Cahoon accept Medicare?
- Sonja Cahoon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonja Cahoon's NPI active?
- Yes — Sonja Cahoon's NPI (1902104250) is active in the NPPES registry as of the last update on 2025-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.