Crystal Mueller, PH.D.
Psychologist · Patton, CA
Crystal Mueller, PH.D. is a psychologist with a practice address in Patton, California, and NPI 1023255478, issued on Jan 7, 2009. Check the license (California 21896, 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
- Crystal Mueller
- Credential
- PH.D.
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 21896 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3102 E. Highland Ave., Patton, CA 92369
- Phone
- (909) 425-7628
- Enumerated
- Jan 7, 2009
- Record last updated
- Jan 23, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychologist records → All 7,304 in California → Look up another NPI →
Verify Crystal Mueller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 21896Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Crystal Mueller among 7,304 psychologist records in California
Crystal Mueller, PH.D. 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 2009, is newer than 42% of them.
- NPI issued2009 · 42% of these records are older, 54% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 14% of these records are
- Record last updated2009 · 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).
42 psychologist records list a practice address in Patton
They are 42 of the 339 NPPES records with a practice address in Patton, 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 Patton → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Stephen Berger, PSY.D.Patton, CA 923691831151224
- William Britt, PH.D.Patton, CA 923691235181033
- Steven Jenkins, PHDPatton, CA 923691578515722
- Norman Kerbel, PHDPatton, CA 923691821040361
- John Kinsman, PSYDPatton, CA 923691740232487
- Ming-Pay Liu, PH.D.Patton, CA 923691689626137
- Mona Mosk, PH.D.Patton, CA 923691538111083
- Stephen Nitch, PH.D.Patton, CA 923691962454181
Common questions
What is Crystal Mueller, PH.D.'s NPI number?
Crystal Mueller, PH.D.'s National Provider Identifier (NPI) is 1023255478, issued on Jan 7, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Crystal Mueller, PH.D. located?
The NPPES record lists a practice address at 3102 E. Highland Ave., Patton, CA, 92369. Phone: (909) 425-7628. Providers update this record themselves, so call before visiting.
How can I verify Crystal Mueller, PH.D.'s license?
NPPES lists California license number 21896, 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.