Stephen Grill, M.D.
NPI 1366559858 · Gastroenterology Physician · Oakbrook Terrace, IL
Stephen Grill, M.D. is a Gastroenterology Physician provider in Oakbrook Terrace, IL (NPI 1366559858).
Provider details
- NPI number
- 1366559858
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-057396 (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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-08-23
- Last updated
- 2016-01-14
Frequently asked questions
- What is Stephen Grill's NPI number?
- Stephen Grill's National Provider Identifier (NPI) is 1366559858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Grill's specialty?
- Stephen Grill is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Grill located?
- Stephen Grill's practice location on file with NPPES is 2 Transam Plaza Dr, Oakbrook Terrace, IL 60181-4823.
- What is Stephen Grill's phone number?
- The practice phone number listed in the NPPES registry for Stephen Grill is (630) 833-0653.
- Is Stephen Grill's NPI active?
- Yes — Stephen Grill's NPI (1366559858) is active in the NPPES registry as of the last update on 2016-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.