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

Dr. Syed Saif Zahir, DO

Individual provider Internal Medicine Physician · NPI 1649666900

Dr. Syed Saif Zahir, DO is an Internal Medicine Physician in Olympia Fields, Illinois. Practices as a sole proprietor and works from 8 locations. Licensed in Illinois and Kentucky.

Licensed in
IL, KY
In the registry since
2015
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

20201 Crawford Ave
Olympia Fields, IL 60461-1010
Phone: (844) 740-4445
Fax: (708) 679-2161
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (7)

  • 4500 Memorial Dr, Belleville, IL 62226-5360 — (618) 257-6220
  • 405 W Jackson St, Carbondale, IL 62901-1462 — (618) 549-0721
  • 1 Ingalls Dr, Harvey, IL 60426-3558 — (708) 333-2300
  • 201 S 14th St, Herrin, IL 62948-3631 — (618) 942-2171
  • 1000 Health Center Dr, Mattoon, IL 61938-4644 — (217) 238-4325
  • 2 S Hospital Dr, Murphysboro, IL 62966-3333 — (618) 684-3156
  • 911 Bypass Rd Bldg A, Pikeville, KY 41501-1689 — (606) 218-3500

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036148353 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 04430 (KY)
Hospitalist Physician Taxonomy 208M00000X · Licence 036148353 (IL)
Hospitalist Physician Taxonomy 208M00000X · Licence 04430 (KY)

Record details

NPI number1649666900
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 13, 2015
Last updated in NPPESJune 23, 2025
Certification dateJune 23, 2025

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