Mark Gross, M.D.
NPI 1568458776 · Orthopaedic Surgery Physician · Barrington, IL
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Gross, M.D. is a Orthopaedic Surgery Physician provider in Barrington, IL (NPI 1568458776).
Provider details
- NPI number
- 1568458776
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036062557 (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
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
Mailing address
Registry dates
- Enumerated
- 2005-09-22
- Last updated
- 2018-03-29
Frequently asked questions
- What is Mark Gross's NPI number?
- Mark Gross's National Provider Identifier (NPI) is 1568458776, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Gross's specialty?
- Mark Gross is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Gross located?
- Mark Gross's practice location on file with NPPES is 27401 W Highway 22 Ste 125, Barrington, IL 60010-5934.
- What is Mark Gross's phone number?
- The practice phone number listed in the NPPES registry for Mark Gross is (847) 381-0388.
- Does Mark Gross accept Medicare?
- Mark Gross is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Gross's NPI active?
- Yes — Mark Gross's NPI (1568458776) is active in the NPPES registry as of the last update on 2018-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.