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Internal Medicine

Costandinos D. Hanjis, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Costandinos D. Hanjis, MD is an internal medicine doctor at 575 Lexington Ave, New York, NY 10022. May accept Medicare assignment. In 2024, Costandinos D. Hanjis had 221 Original Medicare patients and 1,041 services. NPI 1316140056. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 575 Lexington Ave, New York, NY 10022 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Hospital: New York-Presbyterian Hospital
  • Medical school: New York Medical College · graduated 2004 (22 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Costandinos D. Hanjis, 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 Costandinos D. Hanjis accept Medicare assignment?
Medicare's clinician data says Costandinos D. Hanjis may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Costandinos D. Hanjis see?
In 2024, CMS data shows 221 Original Medicare patients and 1,041 services for Costandinos D. Hanjis. This counts Original Medicare only and measures volume, not quality.
What is Costandinos D. Hanjis's NPI number?
1316140056. 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 Costandinos D. Hanjis, 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 patients221
Services billed to Medicare1,041
Different services or procedures28
Participating Medicare providerYes
Average age of these patients74

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)362 services
  2. Insertion of needle into vein for collection of blood sample (36415)187 services
  3. 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)141 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)91 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)56 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 cholesterol74%
  • High blood pressure62%
  • Arthritis48%
  • Ischemic heart disease23%
  • Anxiety22%
  • Osteoporosis22%

Hospitals where Costandinos D. Hanjis works

Medicare's Facility Affiliation Data lists Costandinos D. Hanjis 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.

Practice locations

Addresses where Costandinos D. Hanjis is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in New York

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

All internal medicine doctors in New York →

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1316140056
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