JOHN C GASKILL M.D.
NPI 1316058043
Emergency Medicine in Crystal Lake, IL
About John C Gaskill M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN C GASKILL M.D. (NPI 1316058043) is an individual emergency medicine provider in Crystal Lake, Illinois, licensed in Illinois (036092988) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Mercyhealth Hospital & Physician Clinic-crystal La, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John C Gaskill M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show John Gaskill reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Algonquin, IL 60102
- Reassigned Medicare billing, Illinois enrollment
- 982 clinicians in this Medicare group
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 clinicians in this Medicare group
Evergreen Park, IL 60805
- Reassigned Medicare billing, Illinois enrollment
- 183 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Illinois enrollment
- 671 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Illinois enrollment
- 478 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercyhealth Hospital & Physician Clinic-Crystal La
Acute Care Hospitals · Crystal Lake, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60014 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CRYSTAL LAKE, IL 60014
CRYSTAL LAKE, IL 60014
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Gaskill's NPI number?
The NPI number for John Gaskill is 1316058043. It was assigned to this individual provider in the NPPES registry on August 31, 2006.
Where is John Gaskill located?
John Gaskill practices at 875 South Route 31, Crystal Lake, IL 60014. The listed phone number is (888) 396-3729.
What is John Gaskill's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Gaskill enrolled in Medicare?
Yes. John Gaskill is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Gaskill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Gaskill reassigns Medicare benefits to 5 organizations: Cepamerica Illinois LLP (Algonquin, IL), Mercy Harvard Hospital Inc (Harvard, IL), Osf Healthcare System (Evergreen Park, IL), Mercy Health System Corporation (Janesville, WI) and Freeport Memorial Hospital (Freeport, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Gaskill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Gaskill affiliated with any hospitals?
According to CMS data, John Gaskill is affiliated with Mercyhealth Hospital & Physician Clinic-Crystal La.
When was this NPI record last updated?
The NPPES record for John Gaskill was last updated on September 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John C Gaskill, M.D. · NPI 1316058043
Emergency Medicine physician in Crystal Lake, Illinois. Individual provider, active in the CMS NPPES registry since August 31, 2006.
## Identity
- **NPI:** 1316058043 (Entity type: Individual)
- **Enumerated:** August 31, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036092988 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 875 SOUTH ROUTE 31, Crystal Lake, IL 60014
- **Phone:** (888) 396-3729
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Cepamerica Illinois LLP (NPI 1902182108, Algonquin, IL); Mercy Harvard Hospital Inc (NPI 1427001445, Harvard, IL); Osf Healthcare System (NPI 1215572045, Evergreen Park, IL); Mercy Health System Corporation (NPI 1598718603, Janesville, WI); Freeport Memorial Hospital (NPI 1447228788, Freeport, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 1993
## Record status
- **NPPES last updated:** September 20, 2023
- **Other identifiers:** Medicaid 036092988 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1316058043) · Data from the CMS NPPES public registry.