Quick answers
- Does Martik Tahmasian accept Medicare assignment?
- Yes. Medicare's clinician data says Martik Tahmasian 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 Martik Tahmasian see?
- In 2024, CMS data shows 224 Original Medicare patients and 7,333 services for Martik Tahmasian. This counts Original Medicare only and measures volume, not quality.
- What is Martik Tahmasian's NPI number?
- 1770087728. 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 Martik Tahmasian, 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 | 224 |
|---|---|
| Services billed to Medicare | 7,333 |
| Different services or procedures | 49 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)6,120 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)203 services
- Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)165 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)99 services
- Injection, methylprednisolone acetate, 80 mg (J1040)57 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%
- Arthritis75%
- Diabetes32%
- Ischemic heart disease31%
- Anxiety28%
Practice locations
Addresses where Martik Tahmasian is enrolled with Medicare (CMS data updated October 2, 2026).
- 1011 Balwin Park BlvdBaldwin Park, CA 91706 (626) 851‑1011
- 1255 W Arrow HwySan Dimas, CA 91773 (909) 394‑2526
Group practices
Medicare enrollment lists Martik Tahmasian as a member of this group (CMS data updated October 2, 2026).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Family Practiceprimary
- Sports Medicinealso
Other family doctors in Baldwin Park
Clinicians with the same Medicare primary specialty in Baldwin Park, CA — not a recommendation.
Other clinicians in Southern California Permanente Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770087728 |
| 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
- 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