Quick answers
- Does Julian C. Hong accept Medicare assignment?
- Yes. Medicare's clinician data says Julian C. Hong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Julian C. Hong see?
- In 2024, CMS data shows 273 Original Medicare patients and 1,718 services for Julian C. Hong. This counts Original Medicare only and measures volume, not quality.
- What is Julian C. Hong's NPI number?
- 1235540469. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Julian C. Hong, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 273 |
|---|---|
| Services billed to Medicare | 1,718 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ct guidance for insertion of radiation therapy fields (77014)646 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)178 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)177 services
- Calculation of radiation therapy dose (77300)173 services
- Radiation treatment management, 5 treatment sessions (77427)137 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- High blood pressure65%
- Arthritis38%
- Ischemic heart disease29%
- Diabetes23%
Hospitals where Julian C. Hong works
Medicare's Facility Affiliation Data lists Julian C. Hong at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050360
- UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050454
- Washington HospitalFremont, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050195
Practice locations
Addresses where Julian C. Hong is enrolled with Medicare (CMS data updated October 2, 2026).
- 400 Parnassus AveSan Francisco, CA 94143 (415) 476‑1000
- 400 Parnassus Ave, McB300San Francisco, CA 94143 (415) 476‑1000
Group practices
Medicare enrollment lists Julian C. Hong as a member of these groups (CMS data updated October 2, 2026).
- University of California San Francisco1,839 clinicians in the group
- UCSF Medical Group Business Services1,598 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Other clinicians in University of California San Francisco
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1235540469 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians