Crystal Clark
NPI 1427557321 · Nurse Practitioner · Monticello, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Clark is a Nurse Practitioner provider in Monticello, IL (NPI 1427557321).
Provider details
- NPI number
- 1427557321
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 209017069 (IL)
Specialties & taxonomies
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
8 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
- 2018-02-06
- Last updated
- 2019-03-26
Frequently asked questions
- What is Crystal Clark's NPI number?
- Crystal Clark's National Provider Identifier (NPI) is 1427557321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Clark's specialty?
- Crystal Clark is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal Clark located?
- Crystal Clark's practice location on file with NPPES is 1000 Medical Center Dr, Monticello, IL 61856-2116.
- What is Crystal Clark's phone number?
- The practice phone number listed in the NPPES registry for Crystal Clark is (217) 762-6241.
- Does Crystal Clark accept Medicare?
- Crystal Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Clark's NPI active?
- Yes — Crystal Clark's NPI (1427557321) is active in the NPPES registry as of the last update on 2019-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.