NPPES file of Aug 9, 2026

Julian C. Hong, M.D., M.S.

Radiation Oncology Physician · San Francisco, CA

Julian C. Hong, M.D., M.S. is a radiation oncology physician with a practice address in San Francisco, California, and NPI 1235540469, issued on May 9, 2014. Check the license (California 161783, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235540469
Name
Julian C. Hong
Credential
M.D., M.S.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
161783 CA
Self-reported in NPPES; status is on the state search
Practice location
1825 4TH St RM M2260, San Francisco, CA 94143
Phone
(415) 502-7222
Enumerated
May 9, 2014
Record last updated
Jun 14, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190827000886); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2014
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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Verify Julian C. Hong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 161783
    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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13% more Medicare Part D claims than the average radiation oncology physician in 2024

152 Medicare Part D claims for 54 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Julian Hong152
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl54 claims
  2. Terazosin Hcl42 claims
  3. Oxybutynin Chloride Er28 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 practice group's MIPS final score for 2023 (Medicare payment program): 74.5 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. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  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 2 group practices

  1. Ucsf Medical Group Business ServicesSan Francisco, CA
  2. University OF California San FranciscoSan Francisco, CA

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

Julian C. Hong among 735 radiation oncology physician records in California

Julian C. Hong, M.D., M.S. is one of 735 radiation oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 79% of them.

  • NPI issued2014 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2014 · median 2005 among the 545 with a school on file
  • Record last updated2019 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in California

There are 735 radiation oncology physician records in California.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Lauren Boreta, M.D.San Francisco, CA 941431679990071
  2. Steve Braunstein, MD, PHDSan Francisco, CA 941431760610141
  3. Mary Feng, M.D.San Francisco, CA 941431720106693
  4. Barbara Fowble, M.D.San Francisco, CA 941431881623866
  5. Encouse Golden, MD, PHDSan Francisco, CA 941431841525664
  6. Kavita Mishra, M.D., M.P.H.San Francisco, CA 941431568640076
  7. Jean Nakamura, M.D.San Francisco, CA 941431154369551
  8. Anna Paulsson, M.D.San Francisco, CA 941431134562333

Common questions

What is Julian C. Hong, M.D., M.S.'s NPI number?

Julian C. Hong, M.D., M.S.'s National Provider Identifier (NPI) is 1235540469, issued on May 9, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Julian C. Hong, M.D., M.S. located?

The NPPES record lists a practice address at 1825 4TH St RM M2260, San Francisco, CA, 94143. Phone: (415) 502-7222. Providers update this record themselves, so call before visiting.

How can I verify Julian C. Hong, M.D., M.S.'s license?

NPPES lists California license number 161783, 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 Julian C. Hong, M.D., M.S. prescribe under Medicare Part D?

In 2024, Julian C. Hong, M.D., M.S. had 152 Medicare Part D claims for 54 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Julian C. Hong, M.D., M.S.'s MIPS final score?

The 2023 MIPS final score is 74.5 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.