Quick answers
- Which hospitals does John M. Brown Iii work at?
- Medicare's official clinician data lists John M. Brown Iii at 2 hospitals: Ahs Hospital Corp and Morristown Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John M. Brown Iii see patients?
- Medicare's clinician data lists 1 practice location in Morristown, NJ. Call before your visit to confirm the address.
- What is John M. Brown Iii's specialty?
- Medicare lists Thoracic Surgery as the primary specialty, and also Cardiac Surgery.
- Does John M. Brown Iii accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Brown Iii 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 M. Brown Iii?
- (973) 971-5596, as listed in official Medicare / NPI Registry data.
- What is John M. Brown Iii's NPI number?
- 1164424529. 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 M. Brown Iii works
Medicare's Facility Affiliation Data lists John M. Brown Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ahs Hospital CorpHackettstown, NJ · Acute Care Hospital · CCN 310115
- Morristown Medical CenterMorristown, NJ · Acute Care Hospital · CCN 310015
Practice locations
Addresses where John M. Brown Iii is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Madison AveMorristown, NJ 07960 (973) 971‑5596
Group practices
Medicare enrollment lists John M. Brown Iii as a member of this group (CMS data updated 2026-10-02).
- Practice Associates Medical Group1,408 clinicians in the group
Specialties
- Thoracic Surgeryprimary
- Cardiac Surgeryalso
Other thoracic surgeons in Morristown
Clinicians with the same Medicare primary specialty in Morristown, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164424529 |
| 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