Ryan Witherspoon, PH.D.
Clinical Psychologist · Pasadena, CA
Ryan Witherspoon, PH.D. is a clinical psychologist with a practice address in Pasadena, California, and NPI 1851743850, issued on Jul 1, 2016. Check the license (California PSY32022, 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
- Ryan Witherspoon
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY32022 CA
Self-reported in NPPES; status is on the state search - Practice location
- 117 E Colorado Blvd Ste 425, Pasadena, CA 91105
- Phone
- (626) 559-0939
- Enumerated
- Jul 1, 2016
- Entity
- Type 1 · individual
Also registered at 117 E Colorado Blvd Ste 425
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dan Gutterman, PSYDPsychologist1881261378
- Jill Sumiyasu, LMFTMarriage & Family Therapist1770286437
- Helen Yee Hoagland, PH.D.Clinical Psychologist1316249600
Verify Ryan Witherspoon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY32022Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
269 clinical psychologist records list a Pasadena practice address
They are 269 of the 10,525 NPPES records with a Pasadena practice address, and 11,200 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 269 in Pasadena → All 11,200 in California → Every provider in Pasadena →
Other clinical psychologist records in California
- Tanya Aaen, PH.D.Martinez, CA1477518561
- Jack Aamot, PSY.D.Napa, CA1770711210
- Elena Abalo-Dehmer, PH.D.Anaheim, CA1942406368
- Brian Abary, PSY.DLos Angeles, CA1538354832
- Tatevik Abaryan, PH.D.Pacoima, CA1952682619
- Liana Abascal, PH.D.San Diego, CA1073740569
- Jessica Abdalla, PHDWalnut Creek, CA1558069211
- Mohamed Abdallah, PSY.DEl Centro, CA1912430851
- Megan Abdolrashidi, PSYDGilroy, CA1093293094
- Qutayba Abdullatif, PH.D.Pasadena, CA1134667751
Common questions
What is Ryan Witherspoon, PH.D.'s NPI number?
Ryan Witherspoon, PH.D.'s National Provider Identifier (NPI) is 1851743850, issued on Jul 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Witherspoon, PH.D. located?
The NPPES record lists a practice address at 117 E Colorado Blvd Ste 425, Pasadena, CA, 91105. Phone: (626) 559-0939. Providers update this record themselves, so call before visiting.
How can I verify Ryan Witherspoon, PH.D.'s license?
NPPES lists California license number PSY32022, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.