Clark, Nelson, and Associates, Inc.
NPI 1902457450 · Family Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clark, Nelson, and Associates, Inc. is a Family Nurse Practitioner organization in Chicago, IL (NPI 1902457450).
Provider details
- NPI number
- 1902457450
- Entity type
- Organization
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Organization subpart
- No
- Authorized official
- Shammona Clark, Family Nurse Practitioner(574) 298-3090
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Other names (DBA / former)
- Doing business as
- Clark, Nelson, and Associates, Inc.
- Doing business as
- Clark, Nelson, and Associates, Inc.
Additional practice locations (1)
- 7533 S Center View Ct Ste NWest Jordan, UT 84084-5526Phone: (312) 866-4642
Registry dates
- Enumerated
- 2019-09-26
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Clark, Nelson, and Associates, Inc.'s NPI number?
- Clark, Nelson, and Associates, Inc.'s National Provider Identifier (NPI) is 1902457450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Clark, Nelson, and Associates, Inc.?
- Clark, Nelson, and Associates, Inc. is classified in the NPPES registry as Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clark, Nelson, and Associates, Inc. located?
- Clark, Nelson, and Associates, Inc.'s practice location on file with NPPES is 2600 S Michigan Ave, Chicago, IL 60616.
- What is Clark, Nelson, and Associates, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Clark, Nelson, and Associates, Inc. is (312) 866-4642.
- Does Clark, Nelson, and Associates, Inc. accept Medicare?
- Clark, Nelson, and Associates, Inc. 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 Clark, Nelson, and Associates, Inc.?
- The authorized official listed on Clark, Nelson, and Associates, Inc.'s NPPES record is Shammona Clark, Family Nurse Practitioner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Clark, Nelson, and Associates, Inc.'s NPI active?
- Yes — Clark, Nelson, and Associates, Inc.'s NPI (1902457450) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.