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

Mr. Douglas A Tomasian, MD

Individual provider Cardiovascular Disease Physician · NPI 1922187756

Mr. Douglas A Tomasian, MD is a Cardiovascular Disease (Cardiology) in Barrington, Illinois. Graduated from Jefferson Medical College of Thomas Jefferson University in 1995, 31 years ago. Practices with Global Care SC, a 3-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
31
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
IL
In the registry since
2006
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

600 Hart Rd Ste 100
Barrington, IL 60010-2662
Phone: (815) 477-8900
Fax: (815) 477-7160
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 284 Memorial Ct Ste B, Crystal Lake, IL 60014-6231 — (815) 477-8900

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 036096363 (IL)

Record details

NPI number1922187756
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 3, 2006
Last updated in NPPESOctober 29, 2025
Certification dateOctober 29, 2025

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1995 (31 years in practice)
Group practice Global Care S.C. — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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