Diamond Gastroenterology Sc
NPI 1043624752 · Gastroenterology Physician · Oak Park, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diamond Gastroenterology Sc is a Gastroenterology Physician organization in Oak Park, IL (NPI 1043624752).
Provider details
- NPI number
- 1043624752
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ilysa Diamond, Owner(708) 613-4417
- License
- 36120184 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 3101 N Harlem Ave # 3115Chicago, IL 60634-4543Phone: (773) 889-2000
- 3 Erie CtOak Park, IL 60302-2519Phone: (708) 613-4417
Registry dates
- Enumerated
- 2014-06-20
- Last updated
- 2023-08-02
- Certified
- 2023-08-02
Frequently asked questions
- What is Diamond Gastroenterology Sc's NPI number?
- Diamond Gastroenterology Sc's National Provider Identifier (NPI) is 1043624752, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Diamond Gastroenterology Sc?
- Diamond Gastroenterology Sc is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Diamond Gastroenterology Sc located?
- Diamond Gastroenterology Sc's practice location on file with NPPES is 1010 Lake St Ste 424, Oak Park, IL 60301-1185.
- What is Diamond Gastroenterology Sc's phone number?
- The practice phone number listed in the NPPES registry for Diamond Gastroenterology Sc is (708) 613-4417.
- Does Diamond Gastroenterology Sc accept Medicare?
- Diamond Gastroenterology Sc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Diamond Gastroenterology Sc?
- The authorized official listed on Diamond Gastroenterology Sc's NPPES record is Ilysa Diamond, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Diamond Gastroenterology Sc's NPI active?
- Yes — Diamond Gastroenterology Sc's NPI (1043624752) is active in the NPPES registry as of the last update on 2023-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.