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

Tahir Mahmood, MD

Individual provider Hospitalist Physician · NPI 1598849895

Tahir Mahmood, MD is an Internal Medicine in Lombard, Illinois. Qualified in 1991, 35 years ago. Practices with Primary Care Services, a 2-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
35
Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2500 S Highland Ave Ste 230
Lombard, IL 60148-7103
Phone: (630) 429-9000
Fax: (630) 429-9060
Show map & directions

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

Additional practice locations (3)

  • 875 South Route 31, Crystal Lake, IL 60014 — (779) 220-5500
  • 901 Grant St, Harvard, IL 60033-1821 — (815) 943-5431
  • 2000 Lake Ave, Woodstock, IL 60098-7401 — (815) 337-8603

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036108276 (IL)
Hospitalist Physician Taxonomy 208M00000X · Licence 036108276 (IL)

Record details

NPI number1598849895
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 24, 2006
Last updated in NPPESMarch 15, 2024
Certification dateMarch 14, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Primary Care Services — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount