Quick answers
- Does Mammen P. Zachariah accept Medicare assignment?
- Yes. Medicare's clinician data says Mammen P. Zachariah accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Mammen P. Zachariah see?
- In 2024, CMS data shows 372 Original Medicare patients and 1,056 services for Mammen P. Zachariah. This counts Original Medicare only and measures volume, not quality.
- What is Mammen P. Zachariah's NPI number?
- 1154300150. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Mammen P. Zachariah, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 372 |
|---|---|
| Services billed to Medicare | 1,056 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)299 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)280 services
- Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (93016)86 services
- Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)86 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)56 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Ischemic heart disease46%
- Chronic kidney disease35%
- Diabetes34%
Hospitals where Mammen P. Zachariah works
Medicare's Facility Affiliation Data lists Mammen P. Zachariah at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Holy Cross HospitalFt Lauderdale, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100073
Practice locations
Addresses where Mammen P. Zachariah is enrolled with Medicare (CMS data updated October 2, 2026).
- 1841 NE 45th StFort Lauderdale, FL 33308 (954) 678‑9531
- 2825 N State Rd, 7 Suite 303Fort Lauderdale, FL 33308 (954) 678‑9531
- 4101 NW 4th St, Suite 104Plantation, FL 33317 (954) 678‑9531
Group practices
Medicare enrollment lists Mammen P. Zachariah as a member of this group (CMS data updated October 2, 2026).
- Florida Heart Rhythm Specialists PLLC9 clinicians in the group
Specialties
Other interventional cardiologists in Fort Lauderdale
Clinicians with the same Medicare primary specialty in Fort Lauderdale, FL — not a recommendation.
Other clinicians in Florida Heart Rhythm Specialists PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1975 (51 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154300150 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians