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

Dr. Ilysa R Diamond, DO

Individual provider Gastroenterology Physician · NPI 1356596332

Dr. Ilysa R Diamond, DO is a Gastroenterology in Oak Park, Illinois. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 1998, 28 years ago. Practices as a sole proprietor, works from 4 locations and accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
28
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
IL, IN
In the registry since
2008
Specialties on file
2
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

1010 Lake St Ste 424
Oak Park, IL 60301-1185
Phone: (708) 613-4417
Show map & directions

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

Additional practice locations (3)

  • 3101 N Harlem Ave # 3115, Chicago, IL 60634-4543 — (773) 889-2000
  • 3 Erie Ct, Oak Park, IL 60302-2519 — (708) 613-4417
  • 11104 Parkview Circle Dr Ste 310, Fort Wayne, IN 46845-1733 — (260) 266-5230

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 02007989A (IN)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 036120184 (IL)

Record details

NPI number1356596332
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedNovember 18, 2008
Last updated in NPPESSeptember 3, 2024
Certification dateSeptember 3, 2024
Mailing address1010 Lake St Ste 424, Oak Park, IL 60301-1185

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 1998 (28 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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