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

Individual provider Clinical Psychologist · NPI 1700022324

Dr. Mark Ostrowski, PSYD is a Clinical Psychologist in Stamford, Connecticut. Qualified in 2001, 25 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
25
Licensed in
CT
In the registry since
2009
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

999 Summer St Ste 200
Stamford, CT 06905-5546
Phone: (203) 967-4995
Fax: (203) 357-9030
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 002433 (CT)

Record details

NPI number1700022324
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedJanuary 2, 2009
Last updated in NPPESMay 16, 2012

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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