Quick answers
- Does Petros Hajian accept Medicare assignment?
- Yes. Medicare's clinician data says Petros Hajian 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 Petros Hajian see?
- In 2024, CMS data shows 77 Original Medicare patients and 252 services for Petros Hajian. This counts Original Medicare only and measures volume, not quality.
- What is Petros Hajian's NPI number?
- 1285036640. 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 Petros Hajian, 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 | 77 |
|---|---|
| Services billed to Medicare | 252 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)105 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)81 services
- Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit (G0438)11 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)11 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 cholesterol74%
- High blood pressure64%
- Arthritis45%
- Diabetes39%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)17%
- Ischemic heart disease16%
Practice locations
Addresses where Petros Hajian is enrolled with Medicare (CMS data updated October 2, 2026).
- 14427 Chase St, Suite 100Panorama City, CA 91402 (818) 830‑7751
Group practices
Medicare enrollment lists Petros Hajian as a member of this group (CMS data updated October 2, 2026).
- Santo Nino Health Center13 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Panorama City
Clinicians with the same Medicare primary specialty in Panorama City, CA — not a recommendation.
Other clinicians in Santo Nino Health Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285036640 |
| 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