Challis Grimm, ARNP
NPI 1659655074 · Family Nurse Practitioner · Lake Mary, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Challis Grimm, ARNP is a Family Nurse Practitioner provider in Lake Mary, FL (NPI 1659655074).
Provider details
- NPI number
- 1659655074
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- ARNP9176451 (FL)
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
14 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
- 2011-10-04
- Last updated
- 2026-05-18
- Certified
- 2026-05-18
Frequently asked questions
- What is Challis Grimm's NPI number?
- Challis Grimm's National Provider Identifier (NPI) is 1659655074, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Challis Grimm's specialty?
- Challis Grimm is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Challis Grimm located?
- Challis Grimm's practice location on file with NPPES is 917 Rinehart Rd, Lake Mary, FL 32746-4802.
- What is Challis Grimm's phone number?
- The practice phone number listed in the NPPES registry for Challis Grimm is (407) 804-6133.
- Does Challis Grimm accept Medicare?
- Challis Grimm is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Challis Grimm's NPI active?
- Yes — Challis Grimm's NPI (1659655074) is active in the NPPES registry as of the last update on 2026-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.