Witold M. Zajewski, M.d.,p.c.
NPI 1497943229 · Primary Care Clinic/Center · Chicago, IL
Witold M. Zajewski, M.d.,p.c. is a Primary Care Clinic/Center organization in Chicago, IL (NPI 1497943229).
Provider details
- NPI number
- 1497943229
- Entity type
- Organization
- Primary specialty
- Primary Care Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Witold Zajewski, President/Owner(847) 454-9181
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2007-10-05
- Last updated
- 2025-11-24
- Certified
- 2025-11-24
Frequently asked questions
- What is Witold M. Zajewski, M.d.,p.c.'s NPI number?
- Witold M. Zajewski, M.d.,p.c.'s National Provider Identifier (NPI) is 1497943229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Witold M. Zajewski, M.d.,p.c.?
- Witold M. Zajewski, M.d.,p.c. is classified in the NPPES registry as Primary Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is Witold M. Zajewski, M.d.,p.c. located?
- Witold M. Zajewski, M.d.,p.c.'s practice location on file with NPPES is 7046 W Higgins Ave, Chicago, IL 60656-1977.
- What is Witold M. Zajewski, M.d.,p.c.'s phone number?
- The practice phone number listed in the NPPES registry for Witold M. Zajewski, M.d.,p.c. is (847) 454-9181.
- Who is the authorized official for Witold M. Zajewski, M.d.,p.c.?
- The authorized official listed on Witold M. Zajewski, M.d.,p.c.'s NPPES record is Witold Zajewski, President/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Witold M. Zajewski, M.d.,p.c.'s NPI active?
- Yes — Witold M. Zajewski, M.d.,p.c.'s NPI (1497943229) is active in the NPPES registry as of the last update on 2025-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.