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Nephrology

Sarah K. Khan, MD

Works at hospitals in Danbury, CT · Greenwich, CT · Norwalk, CT … · Connecticut

Summary

Dr. Sarah K. Khan, MD is a nephrologist at 1244 Storrs Rd, Road, Storrs, CT 06268. Phone: (860) 724-2579. Accepts Medicare assignment. In 2024, Sarah K. Khan had 470 Original Medicare patients and 2,717 services. NPI 1912140153. 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: Nephrologist (Medicare lists Nephrology)
  • Address: 1244 Storrs Rd, Road, Storrs, CT 06268 · Directions (5 more locations)
  • Phone: (860) 724‑2579
  • Medicare: Accepts Medicare assignment
  • Hospitals: Danbury Hospital, Greenwich Hospital Association -, Norwalk Hospital and 1 more
  • Group practice: Hartford Healthcare Medical Group Specialists PLLC (+1 more)
  • Medical school: graduated 2007 (19 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 Sarah K. Khan, 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 Sarah K. Khan accept Medicare assignment?
Yes. Medicare's clinician data says Sarah K. Khan 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 Sarah K. Khan see?
In 2024, CMS data shows 470 Original Medicare patients and 2,717 services for Sarah K. Khan. This counts Original Medicare only and measures volume, not quality.
What is Sarah K. Khan's NPI number?
1912140153. 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 Sarah K. Khan, 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 patients470
Services billed to Medicare2,717
Different services or procedures43
Participating Medicare providerYes
Average age of these patients76

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)586 services
  2. Urinalysis, manual test (81002)437 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)410 services
  4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)177 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)100 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%
  • Diabetes53%
  • Arthritis44%
  • Ischemic heart disease42%

Hospitals where Sarah K. Khan works

Medicare's Facility Affiliation Data lists Sarah K. Khan 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
  • Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070018
  • Norwalk HospitalNorwalk, CT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 070034
  • St Vincent's Medical CenterBridgeport, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070028

Practice locations

Addresses where Sarah K. Khan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Sarah K. Khan as a member of these groups (CMS data updated October 2, 2026).

  • Hartford Healthcare Medical Group Specialists PLLC1,588 clinicians in the group
  • Westchester Medical Group, P.C415 clinicians in the group

Specialties

Find other Nephrology doctors in Connecticut →

Other nephrologists in Connecticut

Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.

All nephrologists in Connecticut →

Other clinicians in Hartford Healthcare Medical Group Specialists PLLC

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

Clinician information

CredentialMD
Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1912140153
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