David Sitzer, PH.D.
Psychologist · Palo Alto, CA
David Sitzer, PH.D. is a psychologist with a practice address in Palo Alto, California, and NPI 1619091253, issued on Mar 19, 2007. Check the license (California PSY 13538, 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
- David Sitzer
- Credential
- PH.D.
- Primary taxonomy
- Psychologist 103T00000X
- License number
- PSY 13538 CA
Self-reported in NPPES; status is on the state search - Practice location
- 667 Lytton Ave, Palo Alto, CA 94301
- Phone
- (650) 269-0657
- Enumerated
- Mar 19, 2007
- Record last updated
- Jul 18, 2025
- Entity
- Type 1 · individual
Also registered at 667 Lytton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susanne Ebert-Khosla, LMFTMarriage & Family Therapist1407348394
- Julie Gerhardt, PH.D.Mental Health Counselor1255584199
- Andrew Goldberg, PSY.D.Psychologist1063761195
- Tayler Lim-Mosier, LPCCMental Health Counselor1144681867
- Ellen Russin Russin, LCSWClinical Social Worker1891821963
- Jean Schellenberg, PHDClinical Psychologist1669719340
Verify David Sitzer 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 13538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
133 psychologist records list a practice address in Palo Alto
They are 133 of the 7,617 NPPES records with a practice address in Palo Alto, and 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 133 in Palo Alto → All 7,304 in California → Every provider in Palo Alto →
Other psychologist records in California
- Alice Abarbanel, PH.D.Albany, CA1598095002
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- 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 David Sitzer, PH.D.'s NPI number?
David Sitzer, PH.D.'s National Provider Identifier (NPI) is 1619091253, issued on Mar 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David Sitzer, PH.D. located?
The NPPES record lists a practice address at 667 Lytton Ave, Palo Alto, CA, 94301. Phone: (650) 269-0657. Providers update this record themselves, so call before visiting.
How can I verify David Sitzer, PH.D.'s license?
NPPES lists California license number PSY 13538, 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.