Quick answers
- Which hospitals does John A. Co work at?
- Medicare's official clinician data lists John A. Co at 1 hospital: Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John A. Co see patients?
- Medicare's clinician data lists 1 practice location in Ridgewood, NJ. Call before your visit to confirm the address.
- What is John A. Co's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does John A. Co accept Medicare assignment?
- Yes. Medicare's clinician data says John A. Co accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John A. Co?
- (201) 445-0405, as listed in official Medicare / NPI Registry data.
- What is John A. Co's NPI number?
- 1588620199. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John A. Co works
Medicare's Facility Affiliation Data lists John A. Co at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Valley HospitalParamus, NJ · Acute Care Hospital · CCN 310012
Practice locations
Addresses where John A. Co is enrolled with Medicare (CMS data updated 2026-10-02).
- 75 N Maple Ave, Suite 100Ridgewood, NJ 07450 (201) 445‑0405
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New Jersey →
Other cardiologists in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588620199 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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