NPPES file of Aug 9, 2026

Nolan Ryan Ung

Child & Adolescent Psychiatry Physician · Orange, CA

Nolan Ryan Ung is a child & adolescent psychiatry physician with a practice address in Orange, California, and NPI 1861989766, issued on Apr 16, 2018. Check the license (California A163403, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861989766
Name
Nolan Ryan Ung
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
A163403 CA
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(714) 456-5770
Enumerated
Apr 16, 2018
Record last updated
May 26, 2022
Medicare enrollment
Enrolled (PECOS I20240314002924); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 2018
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 101 The City Dr S

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

  1. Danny Abad, PAPhysician Assistant1477158673
  2. Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
  3. Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
  4. Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
  5. Eric AbelloOtolaryngology Physician1922566215
  6. Brandon Abeyta, MDAnesthesiology Physician1841291804

Verify Nolan Ryan Ung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A163403
    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
Open the California license search

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62% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

193 Medicare Part D claims for 32 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D.

  1. Nolan Ung193
  2. Specialty average504

Most prescribed

  1. Quetiapine Fumarate63 claims
  2. Mirtazapine53 claims
  3. Trazodone Hcl35 claims
  4. Risperidone11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Nolan Ryan Ung among 1,009 child & adolescent psychiatry physician records in California

Nolan Ryan Ung is one of 1,009 child & adolescent psychiatry physician records with a practice address in California. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 91% of them.

  • NPI issued2018 · 91% of these records are older, 8% newer
  • In a Medicare fileYes · 55% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2018 · median 2005 among the 215 with a school on file
  • Record last updated2022 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in California

There are 1,009 child & adolescent psychiatry physician records in California.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Rebecca Ba'Gah, M.D.Orange, CA 928681225490741
  2. Lawrence Budner, M.D.Orange, CA 928681114974789
  3. Michael Chu, M.D.Orange, CA 928681154783348
  4. Carolyn Cookson, MDOrange, CA 928681053808964
  5. Lisa Cullins, MDOrange, CA 928681770673030
  6. Mohamed Elatrozy, MDOrange, CA 928681851445589
  7. Pete Farrell, D.O.Orange, CA 928681770667503
  8. Gail Fernandez, MDOrange, CA 928681871673921

Common questions

What is Nolan Ryan Ung's NPI number?

Nolan Ryan Ung's National Provider Identifier (NPI) is 1861989766, issued on Apr 16, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Nolan Ryan Ung located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-5770. Providers update this record themselves, so call before visiting.

How can I verify Nolan Ryan Ung's license?

NPPES lists California license number A163403, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nolan Ryan Ung prescribe under Medicare Part D?

In 2024, Nolan Ryan Ung had 193 Medicare Part D claims for 32 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. Part D covers Medicare prescriptions 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. 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.