Mohammad Hajjar, M.D
NPI 1235350893 · Interventional Cardiology Physician · Santa Ana, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mohammad Hajjar, M.D is a Interventional Cardiology Physician provider in Santa Ana, CA (NPI 1235350893).
Provider details
- NPI number
- 1235350893
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- C137003 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,301 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 50 Minutes99233 | 1,670 | $122 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,124 | $81 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 672 | $71 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 513 | $178 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 512 | $138 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 183 | 64 |
| Furosemide | 124 | 38 |
| Carvedilol | 120 | 45 |
| Amlodipine Besylate | 115 | 46 |
| Losartan Potassium | 84 | 29 |
| Ticagrelorbrand: Brilinta | 69 | 29 |
| Metoprolol Succinate | 67 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$691 across 29 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-01
- Last updated
- 2026-05-13
- Certified
- 2026-05-13
Frequently asked questions
- What is Mohammad Hajjar's NPI number?
- Mohammad Hajjar's National Provider Identifier (NPI) is 1235350893, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mohammad Hajjar's specialty?
- Mohammad Hajjar is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mohammad Hajjar located?
- Mohammad Hajjar's practice location on file with NPPES is 999 N Tustin Ave Ste 205, Santa Ana, CA 92705-6506.
- What is Mohammad Hajjar's phone number?
- The practice phone number listed in the NPPES registry for Mohammad Hajjar is (714) 617-2626.
- Does Mohammad Hajjar accept Medicare?
- Mohammad Hajjar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mohammad Hajjar's NPI active?
- Yes — Mohammad Hajjar's NPI (1235350893) is active in the NPPES registry as of the last update on 2026-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.