Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Daniel Constant Mierlak, MD, PHD

Individual provider Psychiatry Physician · NPI 1902964828

Dr. Daniel Constant Mierlak, MD, PHD practises Psychiatry in New York, New York. Graduated from State University of New York Downstate Medical Center in 1989, 37 years ago. Practices as a sole proprietor. Licensed in New York.

Years since qualifying
37
Trained at
State University of New York Downstate Medical Center
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

230 E 73rd St Ste A
New York, NY 10021 Not confirmed with CMS for 19 years — call before visiting
Phone: (212) 879-2622
Fax: (212) 517-5952
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 184720 (NY)

Record details

NPI number1902964828
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedDecember 4, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Not indicated

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