Quick answers
- Does Nagaraja R. Sridhar accept Medicare assignment?
- Yes. Medicare's clinician data says Nagaraja R. Sridhar 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 Nagaraja R. Sridhar see?
- In 2024, CMS data shows 449 Original Medicare patients and 7,426 services for Nagaraja R. Sridhar. This counts Original Medicare only and measures volume, not quality.
- What is Nagaraja R. Sridhar's NPI number?
- 1245289016. 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 Nagaraja R. Sridhar, 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 | 449 |
|---|---|
| Services billed to Medicare | 7,426 |
| Different services or procedures | 57 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Dialysis services, 2-3 physician visits per month (20 years or older) (90961)359 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)253 services
- Dialysis services, per day, less than full month service (20 years or older) (90970)228 services
- Blood test, comprehensive group of blood chemicals (80053)210 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)208 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%
- Chronic kidney disease75%
- Diabetes54%
- Ischemic heart disease50%
- Heart failure48%
Hospitals where Nagaraja R. Sridhar works
Medicare's Facility Affiliation Data lists Nagaraja R. Sridhar 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.
- Erie County Medical CenterBuffalo, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330219
- Kaleida HealthBuffalo, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330005
- Mercy Hospital of BuffaloBuffalo, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330279
- Sisters of Charity HospitalBuffalo, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330078
Practice locations
Addresses where Nagaraja R. Sridhar is enrolled with Medicare (CMS data updated October 2, 2026).
- 325 Essjay RdWilliamsville, NY 14221 (716) 630‑1000
- 85 High StBuffalo, NY 14203 (716) 630‑1000
Group practices
Medicare enrollment lists Nagaraja R. Sridhar as a member of this group (CMS data updated October 2, 2026).
- Buffalo Medical Group, P.C.236 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Williamsville
Clinicians with the same Medicare primary specialty in Williamsville, NY — not a recommendation.
Other clinicians in Buffalo Medical Group, P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1982 (44 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) | 1245289016 |
| 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