Judith Phillips Sill, PHD
Psychologist · Mendocino, CA
Judith Phillips Sill, PHD is a psychologist with a practice address in Mendocino, California, and NPI 1881740025, issued on Jan 27, 2007. Check the license (California PSY 7543, 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
- Judith Phillips Sill
- Credential
- PHD
- Primary taxonomy
- Psychologist 103T00000X
- License number
- PSY 7543 CA
Self-reported in NPPES; status is on the state search - Practice location
- 45121 Ukiah Street, Mendocino, CA 95460
- Phone
- (707) 937-3000
- Enumerated
- Jan 27, 2007
- Record last updated
- Dec 13, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (707) 937-3373
- Medicaid ID
- PSY075430 CA
- Entity
- Type 1 · individual
Also registered at 45121 Ukiah Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rebecca Picard, M.A.Marriage & Family Therapist1841746237
Verify Judith Phillips Sill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY 7543Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1 psychologist records list a practice address in Mendocino
They are 1 of the 40 NPPES records with a practice address in Mendocino, and 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other psychologist records in California
- Alice Abarbanel, PH.D.Albany, CA1598095002
- Michael Abbott, PSYDModesto, CA1346498151
- Riley AbelesLos Angeles, CA1841861945
- Jenna Abell, PSYDLos Angeles, CA1073743969
- Sheri Abercrombie, PSY.D.San Diego, CA1932292422
- Tseday Aberra, PSY.D.Corona, CA1104026517
- Elham Abouhamzeh, PSY.DIrvine, CA1386092880
- Lilit Abraamyan-ChaidezBurbank, CA1710433289
- Mackenzie Abraham, PHDRedondo Beach, CA1881053833
- Sandra Abraham, PSYDSanta Fe Springs, CA1427467851
Common questions
What is Judith Phillips Sill, PHD's NPI number?
Judith Phillips Sill, PHD's National Provider Identifier (NPI) is 1881740025, issued on Jan 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Judith Phillips Sill, PHD located?
The NPPES record lists a practice address at 45121 Ukiah Street, Mendocino, CA, 95460. Phone: (707) 937-3000. Providers update this record themselves, so call before visiting.
How can I verify Judith Phillips Sill, PHD's license?
NPPES lists California license number PSY 7543, 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.