John Francis Hennecken, MD
NPI 1104856780 · Cardiovascular Disease Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Francis Hennecken, MD is a Cardiovascular Disease Physician provider in Brooklyn, NY (NPI 1104856780).
Provider details
- NPI number
- 1104856780
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35901 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
868 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 294 | $146 |
| 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 | 219 | $18 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 169 | $17 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 69 | $223 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 51 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 334 | 114 |
| Metoprolol Succinate | 252 | 88 |
| Rosuvastatin Calcium | 211 | 78 |
| Losartan Potassium | 177 | 58 |
| Amlodipine Besylate | 115 | 50 |
| Ezetimibe | 102 | 37 |
| Carvedilol | 95 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$487 across 4 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
Additional practice locations (2)
- 101 Lake Oconee PkwyEatonton, GA 31024-6054Phone: (404) 605-2800Fax: (404) 351-5983
- 1000 Cowles Clinc Way # 200Greensboro, GA 30642-5285Phone: (706) 484-7606Fax: (762) 445-1054
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2020-05-18
- Certified
- 2020-05-18
Frequently asked questions
- What is John Francis Hennecken's NPI number?
- John Francis Hennecken's National Provider Identifier (NPI) is 1104856780, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Francis Hennecken's specialty?
- John Francis Hennecken is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Francis Hennecken located?
- John Francis Hennecken's practice location on file with NPPES is 300 Cadman Plz W Fl 18, Brooklyn, NY 11201-3226.
- What is John Francis Hennecken's phone number?
- The practice phone number listed in the NPPES registry for John Francis Hennecken is (929) 210-6135.
- Does John Francis Hennecken accept Medicare?
- John Francis Hennecken is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Francis Hennecken's NPI active?
- Yes — John Francis Hennecken's NPI (1104856780) is active in the NPPES registry as of the last update on 2020-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.