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

Individual provider Internal Medicine Physician · NPI 1609876424

Dr. Zainulabuddin Syed, MD is an Internal Medicine in Downers Grove, Illinois. Qualified in 1973, 53 years ago. Accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
53
Licensed in
IL
In the registry since
2005
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

4121 Fairview Ave Ste L1
Downers Grove, IL 60515-2265
Phone: (630) 968-4790
Fax: (630) 968-8755
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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 036091132 (IL)

Record details

NPI number1609876424
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 22, 2005
Last updated in NPPESMarch 2, 2026
Certification dateMarch 2, 2026
Mailing address4121 Fairview Ave Ste L1, Downers Grove, IL 60515-2265

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1973 (53 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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