Michael Merjanian, MD
NPI 1306230776 · Emergency Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Merjanian, MD is a Emergency Medicine Physician provider in Los Angeles, CA (NPI 1306230776).
Provider details
- NPI number
- 1306230776
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A144396 (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
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
550 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 186 | $9 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 171 | $187 |
| Critical Care, First 30-74 Minutes99291 | 120 | $231 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 42 | $130 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 31 | $189 |
Typical Medicare-allowed amounts for these services range $9–$231 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 64 | 64 |
| Naproxen | 23 | 23 |
| Doxycycline Hyclate | 16 | 16 |
| Morphine Sulfate | 14 | 14 |
| Ondansetronbrand: Ondansetron Odt | 14 | 14 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 13 | 13 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen |
Practice location
Mailing address
Additional practice locations (2)
- 1201 W La Veta AveOrange, CA 92868-4203Phone: (714) 997-3000
- 1100 W Stewart DrOrange, CA 92868-3849Phone: (714) 633-9111
Registry dates
- Enumerated
- 2015-03-24
- Last updated
- 2021-11-16
- Certified
- 2021-11-16
Frequently asked questions
- What is Michael Merjanian's NPI number?
- Michael Merjanian's National Provider Identifier (NPI) is 1306230776, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Merjanian's specialty?
- Michael Merjanian is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Merjanian located?
- Michael Merjanian's practice location on file with NPPES is Ucla Emergency Medicine, Los Angeles, CA 90095-0001.
- What is Michael Merjanian's phone number?
- The practice phone number listed in the NPPES registry for Michael Merjanian is (310) 794-0585.
- Does Michael Merjanian accept Medicare?
- Michael Merjanian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Merjanian's NPI active?
- Yes — Michael Merjanian's NPI (1306230776) is active in the NPPES registry as of the last update on 2021-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.