WILLIAM GERRITT COTTS MD
NPI 1316900087
Internal Medicine - Advanced Heart Failure and Transplant Cardiology in Oak Lawn, IL
About William Gerritt Cotts Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM GERRITT COTTS MD (NPI 1316900087) is an individual advanced heart failure and transplant cardiology provider in Oak Lawn, Illinois, licensed in Illinois (036-101174) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Osf Little Company Of Mary Medical Center, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (1990).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 1
Accepted Insurance
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
William Gerritt Cotts Md 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
2Medicare enrollment records show William Cotts reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Lawn, IL 60453
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Advocate Health And Hospitals Corporation
- 4,870 clinicians in this Medicare group
Oak Lawn, IL 60453
- Reassigned Medicare billing, Illinois enrollment
- 44 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 8
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Osf Little Company Of Mary Medical Center
Acute Care Hospitals · Evergreen Park, ILElmhurst Memorial Hospital
Acute Care Hospitals · Elmhurst, ILAdvocate Condell Medical Center
Acute Care Hospitals · Libertyville, ILAdvocate Christ Hospital & Medical Center
Acute Care Hospitals · Oak Lawn, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60453 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 11
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OAK LAWN, IL 60453
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 William Cotts's NPI number?
The NPI number for William Cotts is 1316900087. It was assigned to this individual provider in the NPPES registry on April 11, 2006.
Where is William Cotts located?
William Cotts practices at 4440 W 95th St Suite 6409 - Outpatient Physician Pavilion, Oak Lawn, IL 60453. The listed phone number is (708) 684-9685.
What is William Cotts's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Advanced Heart Failure and Transplant Cardiology, with taxonomy code 207RA0001X.
Is William Cotts enrolled in Medicare?
Yes. William Cotts 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 William Cotts's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Cotts reassigns Medicare benefits to 2 organizations: Advocate Health & Hospitals Corporation (Oak Lawn, IL) and Cardiothoracic & Vascular Surgical Associates S C (Oak Lawn, 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 William Cotts's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Cotts accept?
Health plans from Oscar Health list William Cotts as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is William Cotts affiliated with any hospitals?
According to CMS data, William Cotts is affiliated with Osf Little Company Of Mary Medical Center, Elmhurst Memorial Hospital, Advocate Condell Medical Center and Advocate Christ Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for William Cotts was last updated on April 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# William Gerritt Cotts, MD · NPI 1316900087
Advanced Heart Failure and Transplant Cardiology physician in Oak Lawn, Illinois. Individual provider, active in the CMS NPPES registry since April 11, 2006.
## Identity
- **NPI:** 1316900087 (Entity type: Individual)
- **Enumerated:** April 11, 2006
- **Primary specialty:** Internal Medicine - Advanced Heart Failure and Transplant Cardiology · taxonomy 207RA0001X
- **State license:** 036-101174 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 4440 W 95TH ST, SUITE 6409 - OUTPATIENT PHYSICIAN PAVILION, Oak Lawn, IL 60453-2600
- **Phone:** (708) 684-9685 · **Fax:** (708) 520-1875
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Advocate Health & Hospitals Corporation (NPI 1912936014, Oak Lawn, IL); Cardiothoracic & Vascular Surgical Associates S C (NPI 1780679407, Oak Lawn, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 1990
## Record status
- **NPPES last updated:** April 11, 2024
- **Other identifiers:** Medicaid 036101174 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1316900087) · Data from the CMS NPPES public registry.