What is Mark Shiels's NPI number?

Mark Shiels's National Provider Identifier (NPI) is 1104812023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Shiels's specialty?

Mark Shiels is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Mark Shiels located?

Mark Shiels's practice location on file with NPPES is 401 Roxbury Rd, Rockford, IL 61107-5075.

What is Mark Shiels's phone number?

The practice phone number listed in the NPPES registry for Mark Shiels is (815) 397-7340.

Is Mark Shiels's NPI active?

Yes — Mark Shiels's NPI (1104812023) is active in the NPPES registry as of the last update on 2007-09-06.

IndividualActive

Mark Shiels, M.D.

NPI 1104812023 · Gastroenterology Physician · Rockford, IL

Mark Shiels, M.D. is a Gastroenterology Physician provider in Rockford, IL (NPI 1104812023).

Provider details

NPI number: 1104812023
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 36072619 (IL)

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense 36072619 (IL)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 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

401 Roxbury Rd

Rockford, IL 61107-5075

Phone: (815) 397-7340

Fax: (815) 397-2156

Street-level locationGet directions

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Mailing address