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Micrographic Dermatologic Surgery (MDS)

Chih Shan J. Chen, MD

Sees patients in Hauppauge, NY · New York

Summary

Chih Shan J. Chen, MD (Micrographic Dermatologic Surgery (MDS)) is enrolled with Medicare at 1 practice location in Hauppauge, NY. NPI 1891766671. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Chih Shan J. Chen, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Micrographic Dermatologic Surgery (MDS)Primary specialty
YesAccepts Medicare assignment
40Years since medical school (graduated 1986)
MaleGender (as listed)
Memorial Sloan-Kettering Cancer Center Suffolk at HauppaugeGroup practice

Quick answers

Where does Chih Shan J. Chen see patients?
Medicare's clinician data lists 1 practice location in Hauppauge, NY. Call before your visit to confirm the address.
What is Chih Shan J. Chen's specialty?
Medicare lists Micrographic Dermatologic Surgery (MDS) as the primary specialty, and also Dermatology.
Does Chih Shan J. Chen accept Medicare assignment?
Yes. Medicare's clinician data says Chih Shan J. Chen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Chih Shan J. Chen?
(631) 863-5100, as listed in official Medicare / NPI Registry data.
What is Chih Shan J. Chen's NPI number?
1891766671. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Chih Shan J. Chen is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Chih Shan J. Chen as a member of this group (CMS data updated 2026-10-02).

  • Memorial Sloan-Kettering Cancer Center Suffolk at Hauppauge7 clinicians in the group

Specialties

Find other Micrographic Dermatologic Surgery (MDS) doctors in New York →

Other dermatologic surgeons in New York

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

All dermatologic surgeons in New York →

Clinician information

CredentialMD
Graduation year1986
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891766671
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 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians