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Endocrinology

Eliza B. Geer, MD

Sees patients in New York, NY · New York

Summary

Dr. Eliza B. Geer, MD is an endocrinologist at 205 E 64th St, New York, NY 10065. Phone: (646) 449-1000. Accepts Medicare assignment. In 2024, Eliza B. Geer had 199 Original Medicare patients and 310 services. NPI 1073627063. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Endocrinologist (Medicare lists Endocrinology)
  • Address: 205 E 64th St, New York, NY 10065 · Directions
  • Phone: (646) 449‑1000
  • Medicare: Accepts Medicare assignment
  • Group practice: Memorial Endocrine Group
  • Medical school: Icahn School Of Medicine At Mount Sinai · graduated 2000 (26 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 Eliza B. Geer, 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 Eliza B. Geer accept Medicare assignment?
Yes. Medicare's clinician data says Eliza B. Geer 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 Eliza B. Geer see?
In 2024, CMS data shows 199 Original Medicare patients and 310 services for Eliza B. Geer. This counts Original Medicare only and measures volume, not quality.
What is Eliza B. Geer's NPI number?
1073627063. 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 Eliza B. Geer, 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 patients199
Services billed to Medicare310
Different services or procedures11
Participating Medicare providerYes
Average age of these patients71

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)124 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)82 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)32 services
  4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)23 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)16 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 cholesterol73%
  • Arthritis46%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)38%
  • Diabetes37%
  • Ischemic heart disease31%

Practice locations

Addresses where Eliza B. Geer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Eliza B. Geer as a member of this group (CMS data updated October 2, 2026).

  • Memorial Endocrine Group19 clinicians in the group

Specialties

Find other Endocrinology doctors in New York →

Other endocrinologists in New York

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

All endocrinologists in New York →

Other clinicians in Memorial Endocrine Group

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

Clinician information

CredentialMD
Medical schoolIcahn School Of Medicine At Mount Sinai
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1073627063
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians