NPPES file of Aug 9, 2026

Peter Yoo, M.D.

Diagnostic Radiology Physician · Upland, CA

Peter Yoo, M.D. is a diagnostic radiology physician with a practice address in Upland, California, and NPI 1609046044, issued on Feb 29, 2008. Check the license (California A99298, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609046044
Name
Peter Yoo
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A99298 CA
Self-reported in NPPES; status is on the state search
Practice location
999 San Bernardino RD, Upland, CA 91786
Phone
(909) 985-2811
Enumerated
Feb 29, 2008
Record last updated
Feb 29, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(909) 456-1255
Medicaid ID
GR0014700 CA
Medicare enrollment
Enrolled (PECOS I20080523000544); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 2002
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 999 San Bernardino RD

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

  1. Lisa AgrasoNeonatal Clinical Nurse Specialist1407700438
  2. James Akamine, M.D.Diagnostic Radiology Physician1497790125
  3. Ahmed Al-WaisiInternal Medicine Physician1871115709
  4. Donald Alpiner, DOSurgery Physician1811086952
  5. Alexander ArzooStudent in an Organized Health Care Education/Training Program1891635629
  6. Liezl Avila, D.O.Emergency Medicine Physician1487064515

Verify Peter Yoo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99298
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 100 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 score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  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. San Antonio Radiological MedicalEastvale, CA

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

Peter Yoo among 4,500 diagnostic radiology physician records in California

Peter Yoo, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.

  • NPI issued2008 · 59% of these records are older, 36% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2002 · median 2004 among the 3,130 with a school on file
  • Record last updated2008 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. James Akamine, M.D.Upland, CA 917861497790125
  2. David Berry, M.D.Upland, CA 917861932135886
  3. Patrick Bryan, M.D.Upland, CA 917861710922448
  4. Yoon Chang, MDUpland, CA 917861487693958
  5. David Dang, M.D.Upland, CA 917861679797203
  6. Saba El Yousef, M.D.Upland, CA 917861124063623
  7. Sangku Kang, M.D.Upland, CA 917861477580017
  8. Bartholomew Palenchar, M.D.Upland, CA 917861467497958

Common questions

What is Peter Yoo, M.D.'s NPI number?

Peter Yoo, M.D.'s National Provider Identifier (NPI) is 1609046044, issued on Feb 29, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Peter Yoo, M.D. located?

The NPPES record lists a practice address at 999 San Bernardino RD, Upland, CA, 91786. Phone: (909) 985-2811. Providers update this record themselves, so call before visiting.

How can I verify Peter Yoo, M.D.'s license?

NPPES lists California license number A99298, 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.

What is Peter Yoo, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 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.