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Internal Medicine

Cynthia J. Tam, DO

Sees patients in New York, NY · Flushing, NY · New York

Summary

Dr. Cynthia J. Tam, DO is an internal medicine doctor at 139 Centre St, Suite 709, New York, NY 10013. Phone: (212) 965-0496. Accepts Medicare assignment. In 2024, Cynthia J. Tam had 106 Original Medicare patients and 1,192 services. NPI 1992871933. 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: 139 Centre St, Suite 709, New York, NY 10013 · Directions (1 more location)
  • Phone: (212) 965‑0496
  • Medicare: Accepts Medicare assignment
  • Group practice: Chinatown True Care Medical PLLC
  • Medical school: graduated 2003 (23 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 Cynthia J. Tam, 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 Cynthia J. Tam accept Medicare assignment?
Yes. Medicare's clinician data says Cynthia J. Tam 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 Cynthia J. Tam see?
In 2024, CMS data shows 106 Original Medicare patients and 1,192 services for Cynthia J. Tam. This counts Original Medicare only and measures volume, not quality.
What is Cynthia J. Tam's NPI number?
1992871933. 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 Cynthia J. Tam, 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 patients106
Services billed to Medicare1,192
Different services or procedures50
Participating Medicare providerYes
Average age of these patients78

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)202 services
  2. Assessment of emotional or behavioral problems (96127)143 services
  3. Insertion of needle into vein for collection of blood sample (36415)132 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)122 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)62 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%
  • Arthritis47%
  • Ischemic heart disease42%
  • Chronic kidney disease42%
  • Diabetes40%

Practice locations

Addresses where Cynthia J. Tam is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cynthia J. Tam as a member of this group (CMS data updated October 2, 2026).

  • Chinatown True Care Medical PLLC241 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 Chinatown True Care Medical PLLC

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

Clinician information

CredentialDO
Graduation year2003 (23 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1992871933
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