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Radiation Oncology

Seema C. Sanghavi, MD

Works at hospitals in Danbury, CT · Connecticut

Summary

Dr. Seema C. Sanghavi, MD is a radiation oncologist at 24 Hospital Ave, Danbury, CT 06810. Phone: (203) 739-7118. Accepts Medicare assignment. In 2024, Seema C. Sanghavi had 244 Original Medicare patients and 1,980 services. NPI 1992778732. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Radiation oncologist (Medicare lists Radiation Oncology)
  • Address: 24 Hospital Ave, Danbury, CT 06810 · Directions
  • Phone: (203) 739‑7118
  • Medicare: Accepts Medicare assignment
  • Hospital: Danbury Hospital
  • Group practice: Nuvance Health Medical Practice Ct Inc
  • Medical school: Northwestern University Feinberg Medical School · graduated 1995 (31 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Seema C. Sanghavi, 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 Seema C. Sanghavi accept Medicare assignment?
Yes. Medicare's clinician data says Seema C. Sanghavi 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 Seema C. Sanghavi see?
In 2024, CMS data shows 244 Original Medicare patients and 1,980 services for Seema C. Sanghavi. This counts Original Medicare only and measures volume, not quality.
What is Seema C. Sanghavi's NPI number?
1992778732. 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 Seema C. Sanghavi, 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 patients244
Services billed to Medicare1,980
Different services or procedures24
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)888 services
  2. Radiation treatment management, 5 treatment sessions (77427)214 services
  3. Calculation of radiation therapy dose (77300)189 services
  4. Design and construction of complex radiation treatment device (77334)164 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)111 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 cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High blood pressure74%
  • Arthritis36%
  • Ischemic heart disease27%
  • Anxiety27%

Hospitals where Seema C. Sanghavi works

Medicare's Facility Affiliation Data lists Seema C. Sanghavi 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.

  • Danbury HospitalDanbury, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070033

Practice locations

Addresses where Seema C. Sanghavi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Seema C. Sanghavi as a member of this group (CMS data updated October 2, 2026).

  • Nuvance Health Medical Practice Ct Inc747 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Connecticut →

Other radiation oncologists in Danbury

Clinicians with the same Medicare primary specialty in Danbury, CT — not a recommendation.

All radiation oncologists in Danbury →

Other clinicians in Nuvance Health Medical Practice Ct Inc

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

Clinician information

CredentialMD
Medical schoolNorthwestern University Feinberg Medical School
Graduation year1995 (31 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992778732
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians