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

Dr. Siamak Heydarian, MD

Individual provider Internal Medicine Physician · NPI 1225072077

Dr. Siamak Heydarian, MD is an Internal Medicine in Woodbridge, Virginia. Qualified in 1987, 39 years ago. Practices as a sole proprietor. Licensed in Virginia.

Years since qualifying
39
Licensed in
VA
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

2200 Opitz Blvd Ste 350
Woodbridge, VA 22191-3321
Phone: (703) 497-6700
Fax: (703) 497-6300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 0101048248 (VA)

Record details

NPI number1225072077
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 15, 2006
Last updated in NPPESJanuary 16, 2008

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Not indicated

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