Diana Patricia Ketterman, PH.D.
Psychologist · Alta Loma, CA
Diana Patricia Ketterman, PH.D. is a psychologist with a practice address in Alta Loma, California, and NPI 1811487937, issued on May 14, 2018. Check the license (California 33769, 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
- Diana Patricia Ketterman
- Credential
- PH.D.
- Primary taxonomy
- Psychologist 103T00000X
- License numbers
- 33769 CA
2551 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5033 Carriage RD, Alta Loma, CA 91737
- Phone
- (909) 732-6224
- Enumerated
- May 14, 2018
- Record last updated
- Sep 23, 2025
- Fax
- (909) 980-4789
- Medicare enrollment
- Enrolled (PECOS I20251124001382); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychologist records → All 7,304 in California → Look up another NPI →
Verify Diana Patricia Ketterman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 33769Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Diana Patricia Ketterman among 7,304 psychologist records in California
Diana Patricia Ketterman, 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 2018, is newer than 73% of them.
- NPI issued2018 · 73% of these records are older, 23% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 14% of these records are
- Graduated1989 · median 2005 among the 1,058 with a school on file
- Record last updated2025 · 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).
2 psychologist records list a practice address in Alta Loma
They are 2 of the 128 NPPES records with a practice address in Alta Loma, 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 Alta Loma → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Christina Navarro-Cabero, PSYDAlta Loma, CA 917371861253361
- Erika Widera, PSY.D.Rancho Cucamonga, CA 917391255589230
- Callistus Amajoyi, CLINICAL PSYCHOLOGISGlendora, CA 917401164858825
- Ashley Azcarrga, PSY.D.Glendora, CA 917401700708823
- Brittany BellGlendora, CA 917401831739457
- David Condiff, PH.D.Glendora, CA 917401831162296
- Carmen GarabetGlendora, CA 917401316590391
- Bruce Lyons, PH.D.Glendora, CA 917401225040363
Common questions
What is Diana Patricia Ketterman, PH.D.'s NPI number?
Diana Patricia Ketterman, PH.D.'s National Provider Identifier (NPI) is 1811487937, issued on May 14, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Diana Patricia Ketterman, PH.D. located?
The NPPES record lists a practice address at 5033 Carriage RD, Alta Loma, CA, 91737. Phone: (909) 732-6224. Providers update this record themselves, so call before visiting.
How can I verify Diana Patricia Ketterman, PH.D.'s license?
NPPES lists California license number 33769, 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.