Aristakes Mnatsakanyan, DO
NPI 1144546425 · Internal Medicine Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aristakes Mnatsakanyan, DO is a Internal Medicine Physician provider in Loma Linda, CA (NPI 1144546425).
Provider details
- NPI number
- 1144546425
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 11952 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
31 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 31 | $82 |
Typical Medicare-allowed amounts for these services range $82–$82 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Tartrate | 33 | 22 |
| Cefpodoxime Proxetil | 30 | 30 |
| Amlodipine Besylate | 27 | 20 |
| Pantoprazole Sodium | 26 | 15 |
| Furosemide | 25 | 17 |
| Losartan Potassium | 24 | 16 |
| Atorvastatin Calcium | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-12
- Last updated
- 2021-12-06
- Certified
- 2020-07-14
Frequently asked questions
- What is Aristakes Mnatsakanyan's NPI number?
- Aristakes Mnatsakanyan's National Provider Identifier (NPI) is 1144546425, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aristakes Mnatsakanyan's specialty?
- Aristakes Mnatsakanyan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Aristakes Mnatsakanyan located?
- Aristakes Mnatsakanyan's practice location on file with NPPES is 11234 Anderson St, Loma Linda, CA 92354-2804.
- What is Aristakes Mnatsakanyan's phone number?
- The practice phone number listed in the NPPES registry for Aristakes Mnatsakanyan is (909) 558-8131.
- Does Aristakes Mnatsakanyan accept Medicare?
- Aristakes Mnatsakanyan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aristakes Mnatsakanyan's NPI active?
- Yes — Aristakes Mnatsakanyan's NPI (1144546425) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.