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Family Practice

Bhanumathy Vinayagasundaram, MD

Sees patients in Lake Ronkonkoma, NY · New York

Summary

Dr. Bhanumathy Vinayagasundaram, MD is a family doctor at 640 Hawkins Ave, Lake Ronkonkoma, NY 11779. Phone: (631) 737-0100. Accepts Medicare assignment. In 2024, Bhanumathy Vinayagasundaram had 217 Original Medicare patients and 1,235 services. NPI 1841201282. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 640 Hawkins Ave, Lake Ronkonkoma, NY 11779 · Directions
  • Phone: (631) 737‑0100
  • Medicare: Accepts Medicare assignment
  • Group practice: Advantagecare Physicians PC
  • Medical school: graduated 1982 (44 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Bhanumathy Vinayagasundaram, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Bhanumathy Vinayagasundaram accept Medicare assignment?
Yes. Medicare's clinician data says Bhanumathy Vinayagasundaram 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 Bhanumathy Vinayagasundaram see?
In 2024, CMS data shows 217 Original Medicare patients and 1,235 services for Bhanumathy Vinayagasundaram. This counts Original Medicare only and measures volume, not quality.
What is Bhanumathy Vinayagasundaram's NPI number?
1841201282. 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 Bhanumathy Vinayagasundaram, 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 patients217
Services billed to Medicare1,235
Different services or procedures29
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)435 services
  2. Insertion of needle into vein for collection of blood sample (36415)283 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)89 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)87 services
  5. Administration of influenza virus vaccine (G0008)37 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%
  • Arthritis37%
  • Diabetes34%
  • Ischemic heart disease33%
  • Chronic kidney disease21%

Practice locations

Addresses where Bhanumathy Vinayagasundaram is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Bhanumathy Vinayagasundaram as a member of this group (CMS data updated October 2, 2026).

  • Advantagecare Physicians PC303 clinicians in the group

Specialties

Find other Family Practice doctors in New York →

Other family doctors in Lake Ronkonkoma

Clinicians with the same Medicare primary specialty in Lake Ronkonkoma, NY — not a recommendation.

All family doctors in Lake Ronkonkoma →

Other clinicians in Advantagecare Physicians PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1982 (44 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1841201282
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians