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

Timothy Witham, MD

Individual provider Neurological Surgery Physician · NPI 1841236825

Timothy Witham, MD is a Neurosurgery in Chicago, Illinois. Graduated from Johns Hopkins University School of Medicine in 1994, 32 years ago. Practices with Meritus Medical Center Inc, a 746-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Maryland.

Years since qualifying
32
Trained at
Johns Hopkins University School of Medicine
Licensed in
IL, MD
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.

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Practice location Address checks out

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone: (888) 824-0200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 600 N Wolfe St, Baltimore, MD 21287-0005 — (410) 955-6406

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence 036178633 (IL)
Neurological Surgery Physician Taxonomy 207T00000X · Licence D61713 (MD)

Record details

NPI number1841236825
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 20, 2006
Last updated in NPPESApril 10, 2026
Certification dateApril 10, 2026

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Meritus Medical Center Inc — 746 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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