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

Theodore Deitz, MD

Individual provider Internal Medicine Physician · NPI 1790361426

Theodore Deitz, MD is an Internal Medicine Physician in Oak Lawn, Illinois. Works from 2 locations. Licensed in Illinois.

Licensed in
IL
In the registry since
2021
Specialties on file
3
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

4440 W 95th St
Oak Lawn, IL 60453-2600
Phone: (708) 684-5580
Fax: (708) 684-4068
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2160 S 1st Ave, Maywood, IL 60153-3328 — (888) 584-7888

Specialties & licences

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence 036.170936 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125.078500 (IL)
Pediatrics Physician Taxonomy 208000000X · Licence 125.078500 (IL)

Record details

NPI number1790361426
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2021
Last updated in NPPESMay 16, 2025
Certification dateMay 16, 2025
Mailing address2160 S 1st Ave, Maywood, IL 60153-3328

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