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

Dr. Kenneth I Oriordan, MD

Individual provider Gastroenterology Physician · NPI 1912075649

Dr. Kenneth I Oriordan, MD is a Gastroenterology in Niles, Illinois. Qualified in 1998, 28 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois and Montana.

Years since qualifying
28
Licensed in
IL, MT
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

7900 Milwaukee Ave Ste 19
Niles, IL 60714-3159
Phone: (847) 318-9595
Fax: (847) 318-9599
Show map & directions

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

Additional practice locations (2)

  • 259 E Erie St Ste 1600, Chicago, IL 60611-3111 — (312) 695-5620
  • 1401 25th St S, Great Falls, MT 59405-5183 — (406) 731-8888

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036084107 (IL)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 57870 (MT)

Record details

NPI number1912075649
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 1, 2006
Last updated in NPPESOctober 23, 2025
Certification dateOctober 23, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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