Peter Youn, M.D.
Specialist · Los Gatos, CA
Peter Youn, M.D. is a specialist with a practice address in Los Gatos, California, and NPI 1285669762, issued on Jul 12, 2006. Check the license (California BY5169075, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Peter Youn
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- BY5169075 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15195 National Ave Ste 206, Los Gatos, CA 95032
- Phone
- (408) 884-8077
- Enumerated
- Jul 12, 2006
- Record last updated
- Nov 27, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (408) 827-4017
- Medicare enrollment
- Enrolled (PECOS I20101006000807); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 1993
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Verify Peter Youn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license BY5169075Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average specialist in 2024
338 Medicare Part D claims for 300 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf290 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.
The MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Peter Youn among 5,749 specialist records in California
Peter Youn, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1993 · median 1989 among the 1,075 with a school on file
- Record last updated2019 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 specialist records list a practice address in Los Gatos
They are 34 of the 1,905 NPPES records with a practice address in Los Gatos, and 5,749 specialist records in California.
All 5,749 in California → Every provider in Los Gatos → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Margaret Cooper Vaughn, M.D.Los Gatos, CA 950321982607990
- James Davilla, M.D.Los Gatos, CA 950321285625533
- Terence Delaney, MDLos Gatos, CA 950321205861226
- Jeffrey Gutman, M.D.Los Gatos, CA 950321083649248
- Alfred Hurwitz, M DLos Gatos, CA 950321053334698
- Chung Liao, M.D.Los Gatos, CA 950321124082466
- Willie Lu, MDLos Gatos, CA 950321114959558
- James Mellema, MDLos Gatos, CA 950321376582528
Common questions
What is Peter Youn, M.D.'s NPI number?
Peter Youn, M.D.'s National Provider Identifier (NPI) is 1285669762, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter Youn, M.D. located?
The NPPES record lists a practice address at 15195 National Ave Ste 206, Los Gatos, CA, 95032. Phone: (408) 884-8077. Providers update this record themselves, so call before visiting.
How can I verify Peter Youn, M.D.'s license?
NPPES lists California license number BY5169075, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Peter Youn, M.D. prescribe under Medicare Part D?
In 2024, Peter Youn, M.D. had 338 Medicare Part D claims for 300 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Peter Youn, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 of 100. 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.