Quick answers
- Does Mohammed Sajid H. Ansari accept Medicare assignment?
- Yes. Medicare's clinician data says Mohammed Sajid H. Ansari 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 Mohammed Sajid H. Ansari see?
- In 2024, CMS data shows 618 Original Medicare patients and 715 services for Mohammed Sajid H. Ansari. This counts Original Medicare only and measures volume, not quality.
- What is Mohammed Sajid H. Ansari's NPI number?
- 1649492620. 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 Mohammed Sajid H. Ansari, 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 | 618 |
|---|---|
| Services billed to Medicare | 715 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)269 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)239 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)61 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)45 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)16 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 cholesterol74%
- High blood pressure72%
- Arthritis50%
- Diabetes32%
- Anxiety29%
- Ischemic heart disease24%
Hospitals where Mohammed Sajid H. Ansari works
Medicare's Facility Affiliation Data lists Mohammed Sajid H. Ansari 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.
- Advocate Sherman HospitalElgin, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140030
- Javon Bea HospitalRockford, IL · Acute Care Hospital · closed, according to its website · CCN 140239
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252
Practice locations
Addresses where Mohammed Sajid H. Ansari is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.
- 1450 Busch PkwyBuffalo Grove, IL 60089 (847) 725‑8640
- 199 W Rand RdMount Prospect, IL 60056 (847) 618‑5400
- 2000 McDonald RdSouth Elgin, IL 60177 (224) 783‑5000
- 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
- 21481 N Rand RdKildeer, IL 60047 (847) 618‑9696
Group practices
Medicare enrollment lists Mohammed Sajid H. Ansari as a member of these groups (CMS data updated October 2, 2026).
- Endeavor Health Medical Group3,350 clinicians in the group
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
- Rockford Health Physicians521 clinicians in the group
- Cepamerica Illinois LLP499 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Buffalo Grove
Clinicians with the same Medicare primary specialty in Buffalo Grove, IL — not a recommendation.
Other clinicians in Endeavor Health Medical Group
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) | 1649492620 |
| 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