Quick answers
- Does Oranus Mohammadi accept Medicare assignment?
- Yes. Medicare's clinician data says Oranus Mohammadi 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 Oranus Mohammadi see?
- In 2024, CMS data shows 285 Original Medicare patients and 29,692 services for Oranus Mohammadi. This counts Original Medicare only and measures volume, not quality.
- What is Oranus Mohammadi's NPI number?
- 1881119501. 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 Oranus Mohammadi, 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 | 285 |
|---|---|
| Services billed to Medicare | 29,692 |
| Different services or procedures | 63 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)4,680 services
- Injection, fulvestrant (fresenius kabi) not therapeutically equivalent to j9395, 25 mg (J9394)720 services
- Injection, fulvestrant, 25 mg (J9395)720 services
- Injection, palonosetron hcl, 25 mcg (J2469)670 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)635 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%
- High cholesterol75%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- Arthritis40%
- Diabetes33%
- Osteoporosis33%
Hospitals where Oranus Mohammadi works
Medicare's Facility Affiliation Data lists Oranus Mohammadi 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.
- PIH Health Downey HospitalDowney, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050393
- PIH Health Hospital-WhittierWhittier, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050169
- Whittier Hospital Medical CenterWhittier, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050735
Practice locations
Addresses where Oranus Mohammadi is enrolled with Medicare (CMS data updated October 2, 2026).
- 11100 Warner Ave, Suite 214Fountain Valley, CA 92708 (714) 594‑7820
- 207 S Santa Anita St, Suite P05San Gabriel, CA 91776 (626) 652‑7433
- 3300 E S St, Suite 304Lakewood, CA 90805 (562) 232‑0550
- 8135 Painter Ave, Suite 103Whittier, CA 90602 (562) 698‑6888
Group practices
Medicare enrollment lists Oranus Mohammadi as a member of this group (CMS data updated October 2, 2026).
- The Oncology Institute Ca, a Professional Corporation113 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in Fountain Valley
Clinicians with the same Medicare primary specialty in Fountain Valley, CA — not a recommendation.
Other clinicians in The Oncology Institute Ca, a Professional Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 (11 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) | 1881119501 |
| 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