Mari Hareyan, PA
NPI 1255004503 · Physician Assistant · Van Nuys, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mari Hareyan, PA is a Physician Assistant provider in Van Nuys, CA (NPI 1255004503).
Provider details
- NPI number
- 1255004503
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
92 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 24 | $171 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 18 | $78 |
| Biopsy Or Removal of Nasal Polyp Or Tissue Using an Endoscope31237 | 15 | $335 |
| Education and Training to Self Measure Blood Pressure99473 | 13 | $14 |
| Ct Scan of Face Without Contrast70486 | 11 | $35 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 11 | $113 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 19 | 19 |
| Methylprednisolone | 18 | 18 |
| Diazepam | 17 | 17 |
| Promethazine Hcl | 16 | 16 |
| Tramadol Hcl | 13 | 13 |
| Gabapentin | 12 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 11 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-07-30
- Last updated
- 2021-07-30
- Certified
- 2021-07-30
Frequently asked questions
- What is Mari Hareyan's NPI number?
- Mari Hareyan's National Provider Identifier (NPI) is 1255004503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mari Hareyan's specialty?
- Mari Hareyan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mari Hareyan located?
- Mari Hareyan's practice location on file with NPPES is 14232 Gilmore St # 101, Van Nuys, CA 91401-1979.
- What is Mari Hareyan's phone number?
- The practice phone number listed in the NPPES registry for Mari Hareyan is (818) 391-8835.
- Does Mari Hareyan accept Medicare?
- Mari Hareyan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mari Hareyan's NPI active?
- Yes — Mari Hareyan's NPI (1255004503) is active in the NPPES registry as of the last update on 2021-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.