Cynthia Acks-Stewart
NPI 1205966728 · Psychologist · Sebastopol, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Acks-Stewart is a Psychologist provider in Sebastopol, CA (NPI 1205966728).
Provider details
- NPI number
- 1205966728
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 27309 (CA)
Specialties & taxonomies
Behavioral Health & Social 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
3 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 (2)
- 8801 Marianna DrForestville, CA 95436-9267Phone: (170) 788-7755
- 1800 Gravenstein Hwy NSebastopol, CA 95472-2607Phone: (707) 823-7300
Registry dates
- Enumerated
- 2007-03-06
- Last updated
- 2023-05-05
- Certified
- 2023-05-05
Frequently asked questions
- What is Cynthia Acks-Stewart's NPI number?
- Cynthia Acks-Stewart's National Provider Identifier (NPI) is 1205966728, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Acks-Stewart's specialty?
- Cynthia Acks-Stewart is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Cynthia Acks-Stewart located?
- Cynthia Acks-Stewart's practice location on file with NPPES is 435 Petaluma Ave Ste 136, Sebastopol, CA 95472.
- What is Cynthia Acks-Stewart's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Acks-Stewart is (707) 387-0245.
- Does Cynthia Acks-Stewart accept Medicare?
- Cynthia Acks-Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Acks-Stewart's NPI active?
- Yes — Cynthia Acks-Stewart's NPI (1205966728) is active in the NPPES registry as of the last update on 2023-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.