Quick answers
- Does Mohsin A. Syed Alvi accept Medicare assignment?
- Yes. Medicare's clinician data says Mohsin A. Syed Alvi 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 Mohsin A. Syed Alvi see?
- In 2024, CMS data shows 313 Original Medicare patients and 771 services for Mohsin A. Syed Alvi. This counts Original Medicare only and measures volume, not quality.
- What is Mohsin A. Syed Alvi's NPI number?
- 1740462621. 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 Mohsin A. Syed Alvi, 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 | 313 |
|---|---|
| Services billed to Medicare | 771 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)361 services
- Hospital discharge day management, more than 30 minutes (99239)177 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)107 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)83 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)40 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%
- Arthritis56%
- Chronic kidney disease56%
- Ischemic heart disease50%
- Heart failure49%
Hospitals where Mohsin A. Syed Alvi works
Medicare's Facility Affiliation Data lists Mohsin A. Syed Alvi 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.
- Emerson Hospital -W Concord, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220084
- Marlborough HospitalMarlborough, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220049
- UMass Memorial Medical Center/University CampusWorcester, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220163
Practice locations
Addresses where Mohsin A. Syed Alvi is enrolled with Medicare (CMS data updated October 2, 2026).
- 133 Old Rd To 9 Acre CorConcord, MA 01742 (978) 287‑3020
- 157 Union StMarlborough, MA 01752 (508) 481‑5000
Group practices
Medicare enrollment lists Mohsin A. Syed Alvi as a member of these groups (CMS data updated October 2, 2026).
- Emerson Practice Associates, Inc240 clinicians in the group
- Marlborough Hospitalist Group PLLC27 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Concord
Clinicians with the same Medicare primary specialty in Concord, MA — not a recommendation.
Other clinicians in Emerson Practice Associates, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740462621 |
| 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