Gregg Fonarow, MD
NPI 1750316402 · Cardiovascular Disease Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregg Fonarow, MD is a Cardiovascular Disease Physician provider in Los Angeles, CA (NPI 1750316402).
Provider details
- NPI number
- 1750316402
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G64544 (CA)
Specialties & taxonomies
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
1,704 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 1,295 | $8 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 216 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 89 | $101 |
| 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'SG2211 | 66 | $17 |
| Test for Exercise-Induced Heart and Lung Stress94621 | 27 | $70 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carvedilol | 105 | 27 |
| Dapagliflozin Propanediolbrand: Farxiga | 74 | 14 |
| Atorvastatin Calcium | 69 | 19 |
| Ezetimibe | 52 | 12 |
| Spironolactone | 49 | 14 |
| Furosemide | 37 | 11 |
| Apixabanbrand: Eliquis | 32 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16,304 across 13 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
- 2006-07-11
- Last updated
- 2010-06-14
Frequently asked questions
- What is Gregg Fonarow's NPI number?
- Gregg Fonarow's National Provider Identifier (NPI) is 1750316402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregg Fonarow's specialty?
- Gregg Fonarow is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gregg Fonarow located?
- Gregg Fonarow's practice location on file with NPPES is 200 Medical Plaza, Los Angeles, CA 90095-3075.
- What is Gregg Fonarow's phone number?
- The practice phone number listed in the NPPES registry for Gregg Fonarow is (310) 825-8811.
- Does Gregg Fonarow accept Medicare?
- Gregg Fonarow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregg Fonarow's NPI active?
- Yes — Gregg Fonarow's NPI (1750316402) is active in the NPPES registry as of the last update on 2010-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.