Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Evan Gelenn Dio Siau, MD

Individual provider Hospitalist Physician · NPI 1205217973

Evan Gelenn Dio Siau, MD is a Hospitalist in New York, New York. Qualified in 2012, 14 years ago. Practices with New York University, a 5,884-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
14
Licensed in
NY
In the registry since
2015
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

1ST Avenue At 16th St
New York, NY 10003
Phone: (212) 844-1808
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 4422 3rd Ave Bldg 3, Bronx, NY 10457-2545 — (718) 960-9000
  • 350 E 17th St, New York, NY 10003-3805 — (212) 420-4056
  • 281 1st Ave, New York, NY 10003-2925 — (212) 844-1808
  • 10 Union Sq E, New York, NY 10003-3314 — (212) 844-1808

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 299726 (NY)

Record details

NPI number1205217973
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 17, 2015
Last updated in NPPESAugust 4, 2023
Certification dateAugust 3, 2023

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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