Quick answers
- Which hospitals does Ali Ridha work at?
- Medicare's official clinician data lists Ali Ridha at 2 hospitals: Emerson Hospital - and Lahey Hospital & Medical Center, Burlington. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ali Ridha see patients?
- Medicare's clinician data lists 4 practice locations, including Concord, MA, Burlington, MA and Chelmsford, MA. Call before your visit to confirm the address.
- What is Ali Ridha's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Ali Ridha accept Medicare assignment?
- Yes. Medicare's clinician data says Ali Ridha 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 Ali Ridha?
- (978) 287-3020, as listed in official Medicare / NPI Registry data.
- What is Ali Ridha's NPI number?
- 1336589167. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ali Ridha works
Medicare's Facility Affiliation Data lists Ali Ridha at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Emerson Hospital -W Concord, MA · Acute Care Hospital · CCN 220084
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute Care Hospital · CCN 220171
Practice locations
Addresses where Ali Ridha is enrolled with Medicare (CMS data updated 2026-10-02).
- 133 Old Rd To 9 Acre CorConcord, MA 01742 (978) 287‑3020
- 29 Mall RdBurlington, MA 01805
- 290 Littleton Rd, Unit 3Chelmsford, MA 01824 (978) 685‑2460
- 41 Mall RdBurlington, MA 01805
Group practices
Medicare enrollment lists Ali Ridha as a member of these groups (CMS data updated 2026-10-02).
- Lahey Clinic Inc1,381 clinicians in the group
- Emerson Practice Associates, Inc240 clinicians in the group
- New England Community Medical Services PLLC55 clinicians in the group
- Lawrence General Community Medical Service PLLC52 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Concord
Clinicians with the same Medicare primary specialty in Concord, MA — not a recommendation.
Clinician information
| Graduation year | 2006 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336589167 |
| 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