OrganizationActive
Carol A. Kotzan, M.D., S. C.
NPI 1942492772 · Internal Medicine Physician · Crystal Lake, IL
Provider details
- NPI number
- 1942492772
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Carol Kotzan, President(815) 455-7200
- License
- 042617706 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
5911 Northwest Hwy
Suite 105
Crystal Lake, IL 60014-8065
Phone: (815) 455-7200
Fax: (815) 455-9256
Street-level locationGet directions
Mailing address
360 Station Drve
Crystal Lake, IL 60014-7978
Registry dates
- Enumerated
- 2007-08-15
- Last updated
- 2008-04-22
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.