IndividualActive
Mark Nelson, MD
NPI 1942277942 · Family Medicine Physician · Wheaton, IL
Mark Nelson, MD is a Family Medicine Physician provider in Wheaton, IL (NPI 1942277942).
Provider details
- NPI number
- 1942277942
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036072356 (IL)
Specialties & taxonomies
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
150 E Willow Ave Ste 300
Wheaton, IL 60187-5529
Phone: (630) 510-6900
Fax: (630) 871-6706
Street-level locationGet directions
Mailing address
1860 Paysphere Cir
Chicago, IL 60674-0018
Registry dates
- Enumerated
- 2006-03-08
- Last updated
- 2021-02-24
- Certified
- 2021-02-24
Frequently asked questions
- What is Mark Nelson's NPI number?
- Mark Nelson's National Provider Identifier (NPI) is 1942277942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Nelson's specialty?
- Mark Nelson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Nelson located?
- Mark Nelson's practice location on file with NPPES is 150 E Willow Ave Ste 300, Wheaton, IL 60187-5529.
- What is Mark Nelson's phone number?
- The practice phone number listed in the NPPES registry for Mark Nelson is (630) 510-6900.
- Is Mark Nelson's NPI active?
- Yes — Mark Nelson's NPI (1942277942) is active in the NPPES registry as of the last update on 2021-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.