Quick answers
- Does Shyamsundar Rajan accept Medicare assignment?
- Yes. Medicare's clinician data says Shyamsundar Rajan 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 Shyamsundar Rajan see?
- In 2024, CMS data shows 176 Original Medicare patients and 998 services for Shyamsundar Rajan. This counts Original Medicare only and measures volume, not quality.
- What is Shyamsundar Rajan's NPI number?
- 1093730442. 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 Shyamsundar Rajan, 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 | 176 |
|---|---|
| Services billed to Medicare | 998 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)420 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)139 services
- Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)137 services
- Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)56 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)53 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%
- Diabetes52%
- Arthritis38%
- Chronic kidney disease31%
- Ischemic heart disease27%
Practice locations
Addresses where Shyamsundar Rajan is enrolled with Medicare (CMS data updated October 2, 2026).
- 6495 New Hampshire Ave, Suite 109Hyattsville, MD 20783 (301) 439‑9599
- 7249 Hanover Pkwy, Suite AGreenbelt, MD 20770 (301) 613‑8923
Group practices
Medicare enrollment lists Shyamsundar Rajan as a member of this group (CMS data updated October 2, 2026).
- Sun Rise Rehab LLC23 clinicians in the group
Specialties
- Internal Medicineprimary
- Geriatric Medicinealso
Other internal medicine doctors in Hyattsville
Clinicians with the same Medicare primary specialty in Hyattsville, MD — not a recommendation.
Other clinicians in Sun Rise Rehab LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 (43 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1093730442 |
| 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
- 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