Nicolas Gisellie
NPI 1669221438 · Internal Medicine Physician · Mchenry, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicolas Gisellie is a Internal Medicine Physician provider in Mchenry, IL (NPI 1669221438).
Provider details
- NPI number
- 1669221438
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 125084580 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2024-05-15
- Last updated
- 2024-08-02
Frequently asked questions
- What is Nicolas Gisellie's NPI number?
- Nicolas Gisellie's National Provider Identifier (NPI) is 1669221438, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicolas Gisellie's specialty?
- Nicolas Gisellie is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nicolas Gisellie located?
- Nicolas Gisellie's practice location on file with NPPES is 4201 Medical Center Drive, Mchenry, IL 60050.
- What is Nicolas Gisellie's phone number?
- The practice phone number listed in the NPPES registry for Nicolas Gisellie is (848) 203-0108.
- Does Nicolas Gisellie accept Medicare?
- Nicolas Gisellie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicolas Gisellie's NPI active?
- Yes — Nicolas Gisellie's NPI (1669221438) is active in the NPPES registry as of the last update on 2024-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.