DR. WINSTON A MITCHELL MD
NPI 1104815323
Anesthesiology in Chicago, IL
About Dr. Winston A Mitchell Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WINSTON A MITCHELL MD (NPI 1104815323) is an individual anesthesiology provider in Chicago, Illinois, licensed in Illinois (036103962) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Promedica Defiance Regional Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
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
Dr. Winston A Mitchell 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
13Medicare enrollment records show Winston Mitchell reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60621
- Reassigned Medicare billing, Illinois enrollment
- 77 clinicians in this Medicare group
Mokena, IL 60448
- Reassigned Medicare billing, Illinois enrollment
- 208 clinicians in this Medicare group
Michigan City, IN 46360
- Reassigned Medicare billing, Indiana enrollment
- 49 clinicians in this Medicare group
Huntley, IL 60142
- Reassigned Medicare billing, Illinois enrollment
- 70 clinicians in this Medicare group
Woodstock, IL 60098
- Reassigned Medicare billing, Illinois enrollment
- 87 clinicians in this Medicare group
Owosso, MI 48867
- Reassigned Medicare billing, Michigan enrollment
- 328 clinicians in this Medicare group
Toledo, OH 43604
- Reassigned Medicare billing, Ohio enrollment
- 1,072 clinicians in this Medicare group
Centralia, IL 62801
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: St Marys Hospital Centralia Illinois
- 392 clinicians in this Medicare group
Wilkes Barre, PA 18764
- Reassigned Medicare billing, Illinois enrollment
- 95 clinicians in this Medicare group
Irving, TX 75038
- Reassigned Medicare billing, Indiana enrollment
- 83 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 13
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.
Promedica Defiance Regional Hospital
Critical Access Hospitals · Defiance, OHOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60617
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 Winston Mitchell's NPI number?
The NPI number for Winston Mitchell is 1104815323. It was assigned to this individual provider in the NPPES registry on October 20, 2005.
Where is Winston Mitchell located?
Winston Mitchell practices at 2320 E 93rd St, Chicago, IL 60617. The listed phone number is (773) 967-2000.
What is Winston Mitchell's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Winston Mitchell enrolled in Medicare?
Yes. Winston Mitchell 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 Winston Mitchell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Winston Mitchell reassigns Medicare benefits to 13 organizations: St Bernard Hospital (Chicago, IL), American Anesthesiology Associates Of Illinois, S.C. (Mokena, IL), La Porte County Anesthesia Associates LLC (Michigan City, IN), Huntley Anesthesia Associates LLC (Huntley, IL), Town Square Anesthesia LLC (Woodstock, IL) and 8 more organizations, listed in the Medicare section above. 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 Winston Mitchell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Winston Mitchell accept?
Health plans from Priority Health list Winston Mitchell 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 Winston Mitchell affiliated with any hospitals?
According to CMS data, Winston Mitchell is affiliated with Promedica Defiance Regional Hospital.
When was this NPI record last updated?
The NPPES record for Winston Mitchell was last updated on May 11, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Winston A Mitchell, MD · NPI 1104815323
Anesthesiology physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since October 20, 2005.
## Identity
- **NPI:** 1104815323 (Entity type: Individual)
- **Enumerated:** October 20, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 036103962 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2320 E 93RD ST, Chicago, IL 60617-3909
- **Phone:** (773) 967-2000
## 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:** 13 organizations under Medicare reassignment (form CMS-855R): St Bernard Hospital (NPI 1467922005, Chicago, IL); American Anesthesiology Associates Of Illinois, S.C. (NPI 1962512335, Mokena, IL); La Porte County Anesthesia Associates LLC (NPI 1477553634, Michigan City, IN); Huntley Anesthesia Associates LLC (NPI 1205282019, Huntley, IL); Town Square Anesthesia LLC (NPI 1669471017, Woodstock, IL); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Howard University College Of Medicine, class of 1988
## Record status
- **NPPES last updated:** May 11, 2018
- **Other identifiers:** Medicaid 036103962 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1104815323) · Data from the CMS NPPES public registry.