Mark J Sokolowski MD Sc
NPI 1396045464 · Orthopaedic Surgery of the Spine Physician · Chicago, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark J Sokolowski MD Sc is a Orthopaedic Surgery of the Spine Physician organization in Chicago, IL (NPI 1396045464).
Provider details
- NPI number
- 1396045464
- Entity type
- Organization
- Primary specialty
- Orthopaedic Surgery of the Spine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Sokolowski, President(630) 962-7390
- License
- 042619573 (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
15 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
- 2010-10-23
- Last updated
- 2020-10-06
- Certified
- 2020-10-06
Frequently asked questions
- What is Mark J Sokolowski MD Sc's NPI number?
- Mark J Sokolowski MD Sc's National Provider Identifier (NPI) is 1396045464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark J Sokolowski MD Sc?
- Mark J Sokolowski MD Sc is classified in the NPPES registry as Orthopaedic Surgery of the Spine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark J Sokolowski MD Sc located?
- Mark J Sokolowski MD Sc's practice location on file with NPPES is 1743 N Harlem Ave, Chicago, IL 60707-4305.
- What is Mark J Sokolowski MD Sc's phone number?
- The practice phone number listed in the NPPES registry for Mark J Sokolowski MD Sc is (773) 295-5025.
- Does Mark J Sokolowski MD Sc accept Medicare?
- Mark J Sokolowski MD 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 Mark J Sokolowski MD Sc?
- The authorized official listed on Mark J Sokolowski MD Sc's NPPES record is Mark Sokolowski, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark J Sokolowski MD Sc's NPI active?
- Yes — Mark J Sokolowski MD Sc's NPI (1396045464) is active in the NPPES registry as of the last update on 2020-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.