NPPES file of Aug 9, 2026

Khemarint Sourn Young, M.D.

Family Medicine Physician · Yorba Linda, CA

Khemarint Sourn Young, M.D. is a family medicine physician with a practice address in Yorba Linda, California, and NPI 1417345117, issued on Jan 3, 2015. Check the license (California A145978, 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
1417345117
Name
Khemarint Sourn Young
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A145978 CA
Self-reported in NPPES; status is on the state search
Practice location
22550 Savi Ranch Pkwy, Yorba Linda, CA 92887
Phone
(888) 988-2800
Enumerated
Jan 3, 2015
Record last updated
Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20171114003271); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 22550 Savi Ranch Pkwy

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

  1. Behzad Alimohammadi, MDNephrology Physician1629156534
  2. Cecilia Chang, M.D.Pediatrics Physician1780708164
  3. Leslie Fung, MDObstetrics & Gynecology Physician1811137052
  4. Sherry GomezRegistered Nurse1205592771
  5. Zainab Hasan, M.D.Family Medicine Physician1528407814
  6. Anne HookPharmacist1720526684

Verify Khemarint Sourn Young in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A145978
    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

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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2.2 times the Medicare Part D claims of the average family medicine physician in 2024

7,651 Medicare Part D claims for 1,833 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 385 claims were for opioids.

  1. Khemarint Young7,651
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium643 claims
  2. Amlodipine Besylate319 claims
  3. Lisinopril307 claims
  4. Losartan Potassium293 claims
  5. Hydrocodone-Acetaminophen233 claims
  6. Rosuvastatin Calcium216 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupYorba Linda, CA

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

Khemarint Sourn Young among 17,133 family medicine physician records in California

Khemarint Sourn Young, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 74% of them.

  • NPI issued2015 · 74% of these records are older, 24% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · median 2005 among the 10,652 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 family medicine physician records list a practice address in Yorba Linda

They are 48 of the 748 NPPES records with a practice address in Yorba Linda, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Donna Hammel-Davis, M.D.Yorba Linda, CA 928871023166683
  2. Rania HannaYorba Linda, CA 928871124534904
  3. Zainab Hasan, M.D.Yorba Linda, CA 928871528407814
  4. Yoonjung Jang, D.O.Yorba Linda, CA 928871447544614
  5. Silvester Lim, M.D.Yorba Linda, CA 928871376681973
  6. Melanie Mohleji, MDYorba Linda, CA 928871396007571
  7. Arianne Sharma, DOYorba Linda, CA 928871356928048
  8. Jason Shen, MDYorba Linda, CA 928871346515921

Common questions

What is Khemarint Sourn Young, M.D.'s NPI number?

Khemarint Sourn Young, M.D.'s National Provider Identifier (NPI) is 1417345117, issued on Jan 3, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Khemarint Sourn Young, M.D. located?

The NPPES record lists a practice address at 22550 Savi Ranch Pkwy, Yorba Linda, CA, 92887. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.

How can I verify Khemarint Sourn Young, M.D.'s license?

NPPES lists California license number A145978, 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 Khemarint Sourn Young, M.D. prescribe under Medicare Part D?

In 2024, Khemarint Sourn Young, M.D. had 7,651 Medicare Part D claims for 1,833 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.