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General Surgery

Karen L. Hiotis, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Karen L. Hiotis, MD is a general surgeon at 111 Broadway, New York, NY 10006. Phone: (212) 263-9700. Accepts Medicare assignment. In 2024, Karen L. Hiotis had 544 Original Medicare patients and 800 services. NPI 1003817065. 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: General surgeon (Medicare lists General Surgery)
  • Address: 111 Broadway, New York, NY 10006 · Directions (6 more locations)
  • Phone: (212) 263‑9700
  • Medicare: Accepts Medicare assignment
  • Hospital: NYU Langone Hospitals
  • Group practice: New York University
  • Medical school: University Of South Florida College Of Medicine · graduated 1994 (32 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Karen L. Hiotis, 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 Karen L. Hiotis accept Medicare assignment?
Yes. Medicare's clinician data says Karen L. Hiotis 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 Karen L. Hiotis see?
In 2024, CMS data shows 544 Original Medicare patients and 800 services for Karen L. Hiotis. This counts Original Medicare only and measures volume, not quality.
What is Karen L. Hiotis's NPI number?
1003817065. 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 Karen L. Hiotis, 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 patients544
Services billed to Medicare800
Different services or procedures22
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)389 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)238 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)94 services
  4. Partial removal of breast (19301)21 services
  5. Biopsy or removal of deep lymph nodes of underarm (38525)15 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%
  • High blood pressure68%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)55%
  • Arthritis53%
  • Osteoporosis35%
  • Diabetes29%

Hospitals where Karen L. Hiotis works

Medicare's Facility Affiliation Data lists Karen L. Hiotis 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.

  • NYU Langone HospitalsNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330214

Practice locations

Addresses where Karen L. Hiotis is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Karen L. Hiotis as a member of this group (CMS data updated October 2, 2026).

  • New York University6,134 clinicians in the group

Specialties

Find other General Surgery doctors in New York →

Other general surgeons in New York

Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.

All general surgeons in New York →

Other clinicians in New York University

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

Clinician information

CredentialMD
Medical schoolUniversity Of South Florida College Of Medicine
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003817065
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