NPPES file of Aug 9, 2026

Hy Diep

Psychologist · San Jose, CA

Hy Diep is a psychologist with a practice address in San Jose, California, and NPI 1053609834, issued on Jul 14, 2011. Check the license (California PSY26861, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1053609834
Name
Hy Diep
Primary taxonomy
Psychologist 103T00000X
License number
PSY26861 CA
Self-reported in NPPES; status is on the state search
Practice location
2400 Moorpark Ave, San Jose, CA 95128
Phone
(408) 975-2730
Enumerated
Jul 14, 2011
Record last updated
Dec 1, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(408) 975-2745
Medicare enrollment
Enrolled (PECOS I20150629001668); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2400 Moorpark Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Senait AbrahaCase Manager/Care Coordinator1609152156
  2. Lalitha AcharyaMental Health Counselor1891928149
  3. Jamal AdamCase Manager/Care Coordinator1285910836
  4. Y Klong Adrong, MHCMental Health Counselor1871633180
  5. Sheilah Altomare, M.S., R.D.Registered Dietitian1740512912
  6. Evanthia Antonakopoulou, RN, PHN, NPRegistered Nurse1073945903

Verify Hy Diep in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PSY26861
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 80.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score67.4
  2. Costout of 100 · 30%46.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. County OF Santa ClaraSan Jose, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Hy Diep among 7,304 psychologist records in California

Hy Diep 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. Its NPI, issued in 2011, is newer than 50% of them.

  • NPI issued2011 · 50% of these records are older, 47% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 14% of these records are
  • Graduated2013 · median 2005 among the 1,058 with a school on file
  • Record last updated2017 · 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).

Psychologist providers in California

There are 7,304 psychologist records in California.

The 8 psychologist records with the nearest ZIP codes

  1. Andrea Che, PH.D.San Jose, CA 951281942459920
  2. Erin Choi, PHDSan Jose, CA 951281407822695
  3. Susan Detrick, PHDSan Jose, CA 951281205881885
  4. Jeanette Francis, PSYD, LPSan Jose, CA 951281316297518
  5. Michelle Hardell, PSY.D.San Jose, CA 951281962619882
  6. Kimberly Javier, PHDSan Jose, CA 951281528356227
  7. Satoko KimparaSan Jose, CA 951281659504967
  8. Michelle Laasi, PHDSan Jose, CA 951281295932002

Common questions

What is Hy Diep's NPI number?

Hy Diep's National Provider Identifier (NPI) is 1053609834, issued on Jul 14, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Hy Diep located?

The NPPES record lists a practice address at 2400 Moorpark Ave, San Jose, CA, 95128. Phone: (408) 975-2730. Providers update this record themselves, so call before visiting.

How can I verify Hy Diep's license?

NPPES lists California license number PSY26861, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

What is Hy Diep's MIPS final score?

The 2023 MIPS final score is 80.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.