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Internal Medicine

Zachary T. Bloomgarden, MD

Works at hospitals in Stony Brook, NY · New York

Summary

Dr. Zachary T. Bloomgarden, MD is an internal medicine doctor at 35 E 85 St, New York, NY 10028. Phone: (212) 879-5933. Accepts Medicare assignment. In 2024, Zachary T. Bloomgarden had 443 Original Medicare patients and 3,075 services. NPI 1700892635. 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: 35 E 85 St, New York, NY 10028 · Directions
  • Phone: (212) 879‑5933
  • Medicare: Accepts Medicare assignment
  • Hospital: Suny/Stony Brook University Hospital
  • Medical school: Albert Einstein College Of Medicine Of Yeshiva University · graduated 1974 (52 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 Zachary T. Bloomgarden, 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 Zachary T. Bloomgarden accept Medicare assignment?
Yes. Medicare's clinician data says Zachary T. Bloomgarden 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 Zachary T. Bloomgarden see?
In 2024, CMS data shows 443 Original Medicare patients and 3,075 services for Zachary T. Bloomgarden. This counts Original Medicare only and measures volume, not quality.
What is Zachary T. Bloomgarden's NPI number?
1700892635. 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 Zachary T. Bloomgarden, 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 patients443
Services billed to Medicare3,075
Different services or procedures16
Participating Medicare providerYes
Average age of these patients79

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)1,283 services
  2. Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)526 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)272 services
  4. Electrocardiogram (ecg) 1 to 3 leads with review by physician (93040)270 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)245 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%
  • Diabetes75%
  • Arthritis48%
  • Chronic kidney disease47%
  • Ischemic heart disease41%

Hospitals where Zachary T. Bloomgarden works

Medicare's Facility Affiliation Data lists Zachary T. Bloomgarden 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 Zachary T. Bloomgarden 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 schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year1974 (52 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1700892635
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