Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Alana A Choy-Shan, MD

Individual provider Cardiovascular Disease Physician · NPI 1912103540

Dr. Alana A Choy-Shan, MD practises Internal Medicine in New York, New York. Graduated from New York University School of Medicine in 2004, 22 years ago. Practices with New York University, a 5,884-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
22
Trained at
New York University School of Medicine
Licensed in
NY
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

423 E 23rd St
New York, NY 10010-5011 Not confirmed with CMS for 12 years — call before visiting
Phone: (646) 584-9852
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 239212 (NY)

Record details

NPI number1912103540
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2007
Last updated in NPPESSeptember 24, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients289
Services billed 748 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at New York University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 5884 clinicians in the practice; 12 are shown here.

Other providers in New York