Cynthia Acks-Stewart
Psychologist · Sebastopol, CA
Cynthia Acks-Stewart is a psychologist with a practice address in Sebastopol, California, and NPI 1205966728, issued on Mar 6, 2007. Check the license (California 27309, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Cynthia Acks-Stewart
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 27309 CA
Self-reported in NPPES; status is on the state search - Practice location
- 435 Petaluma Ave Ste 136, Sebastopol, CA 95472
- Phone
- (707) 387-0245
- Enumerated
- Mar 6, 2007
- Record last updated
- May 5, 2023
- Medicare enrollment
- Enrolled (PECOS I20230807002194); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychologist records → All 7,304 in California → Look up another NPI →
Verify Cynthia Acks-Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 27309Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Cynthia Acks-Stewart among 7,304 psychologist records in California
Cynthia Acks-Stewart is one of 7,304 psychologist records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 64% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 14% of these records are
- Graduated2012 · median 2005 among the 1,058 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 psychologist records list a practice address in Sebastopol
They are 14 of the 550 NPPES records with a practice address in Sebastopol, and 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,304 in California → Every provider in Sebastopol → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Theresa BradburySebastopol, CA 954721376204602
- Marylou Donnelly, MASebastopol, CA 954721326130576
- Diane Harnish, PH.D.Sebastopol, CA 954721962791640
- Andrea Kirk, PH. DSebastopol, CA 954721760939318
- Gillian Lerner, PSYDSebastopol, CA 954721740856608
- Cammy Michel, PSY 24688Sebastopol, CA 954721093087637
- David Murphy, PHDSebastopol, CA 954721376628255
- Jill ReesSebastopol, CA 954721306962659
Common questions
What is Cynthia Acks-Stewart's NPI number?
Cynthia Acks-Stewart's National Provider Identifier (NPI) is 1205966728, issued on Mar 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Acks-Stewart located?
The NPPES record lists a practice address at 435 Petaluma Ave Ste 136, Sebastopol, CA, 95472. Phone: (707) 387-0245. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Acks-Stewart's license?
NPPES lists California license number 27309, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.