Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Elbert K. St Claire Iii

Sees patients in New York, NY · New York

Summary

Elbert K. St Claire Iii is an internal medicine doctor at 5 Columbus Cir, Suite 1802, New York, NY 10019. Phone: (888) 663-6331. Accepts Medicare assignment. In 2024, Elbert K. St Claire Iii had 101 Original Medicare patients and 391 services. NPI 1598956112. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 5 Columbus Cir, Suite 1802, New York, NY 10019 · Directions
  • Phone: (888) 663‑6331
  • Medicare: Accepts Medicare assignment
  • Group practice: One Medical of NY PC
  • Medical school: Tulane University School Of Medicine · 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 Elbert K. St Claire Iii, 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 Elbert K. St Claire Iii accept Medicare assignment?
Yes. Medicare's clinician data says Elbert K. St Claire Iii 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 Elbert K. St Claire Iii see?
In 2024, CMS data shows 101 Original Medicare patients and 391 services for Elbert K. St Claire Iii. This counts Original Medicare only and measures volume, not quality.
What is Elbert K. St Claire Iii's NPI number?
1598956112. 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 Elbert K. St Claire Iii, 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 patients101
Services billed to Medicare391
Different services or procedures19
Participating Medicare providerYes
Average age of these patients73

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)107 services
  2. Insertion of needle into vein for collection of blood sample (36415)86 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)59 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)39 services
  5. 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)34 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 cholesterol60%
  • High blood pressure50%
  • Arthritis42%
  • Anxiety25%
  • Depression23%
  • Ischemic heart disease22%

Practice locations

Addresses where Elbert K. St Claire Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Elbert K. St Claire Iii as a member of this group (CMS data updated October 2, 2026).

  • One Medical of NY PC72 clinicians in the group

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 →

Other clinicians in One Medical of NY PC

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

Clinician information

Medical schoolTulane University School Of Medicine
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1598956112
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