Quick answers
- Does Boryana M. Eastman accept Medicare assignment?
- Yes. Medicare's clinician data says Boryana M. Eastman 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 Boryana M. Eastman see?
- In 2024, CMS data shows 248 Original Medicare patients and 3,449 services for Boryana M. Eastman. This counts Original Medicare only and measures volume, not quality.
- What is Boryana M. Eastman's NPI number?
- 1316301948. 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 Boryana M. Eastman, 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 | 248 |
|---|---|
| Services billed to Medicare | 3,449 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)752 services
- Ct guidance for insertion of radiation therapy fields (77014)734 services
- Calculation of radiation therapy dose (77300)305 services
- Continuing radiation therapy consultation per week (77336)221 services
- Radiation treatment management, 5 treatment sessions (77427)209 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 blood pressure75%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- High cholesterol71%
- Arthritis46%
- Diabetes37%
- Ischemic heart disease30%
Hospitals where Boryana M. Eastman works
Medicare's Facility Affiliation Data lists Boryana M. Eastman 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.
- Antelope Valley HospitalLancaster, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050056
- Palmdale Regional Medical CenterPalmdale, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050204
- Ridgecrest Regional HospitalRidgecrest, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051333
Practice locations
Addresses where Boryana M. Eastman is enrolled with Medicare (CMS data updated October 2, 2026).
- 209 Fair Oaks AveSouth Pasadena, CA 91030 (626) 396‑2900
- 44151 15th St W, Suite 101Lancaster, CA 93534 (661) 902‑5600
Group practices
Medicare enrollment lists Boryana M. Eastman as a member of this group (CMS data updated October 2, 2026).
- City of Hope Medical Foundation982 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in South Pasadena
Clinicians with the same Medicare primary specialty in South Pasadena, CA — not a recommendation.
Other clinicians in City of Hope Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1316301948 |
| 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