Active NPI
Tierney Regan Jeffers
- Physician Assistant
- Naperville, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- 085011097
- Practice address
- 55 Shuman Blvd Ste 700
Naperville, IL 60563-8422 - Phone
- (877) 632-6637
- Fax
- (708) 409-5179
- NPI assigned
- Jul 17, 2020
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | PA7758 | MA | |
| Physician Assistant | 363A00000X | 085011097 | IL | Primary |
Addresses
Primary practice location
55 Shuman Blvd Ste 700
Naperville, IL 60563-8422
Mailing address
PO Box 735263
Chicago, IL 60673-5263
Phone (877) 632-6637
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA, IL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 2020
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1611 W Harrison St
Chicago, IL 60612-4861
Phone (877) 632-6637
2450 Wolf Rd
Suite E
Westchester, IL 60154-5643
Phone (877) 632-6637
770 Beloit Rd
Belvidere, IL 61008-1745
Phone (815) 398-9491
963 N 129TH Infantry Dr
Joliet, IL 60435-3104
Phone (877) 632-6637
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Orthomidwest, PLLC | Current | Accepting new patients | |
| Orthomidwest, PLLC | Physician Assistant | Current | Accepting new patients |
| Massachusetts General Physicians Organization Inc | Current | Accepting new patients | |
| Patriot Urgent Care Professionals, PC | Current | Accepting new patients | |
| General Hospital Corp | Current | Accepting new patients | |
| Patriot Urgent Care Professionals PC | Current | Accepting new patients |
Locations
770 Beloit Rd
Belvidere, IL 61008
Phone (815) 847-7060
1625 N Harlem Ave
Ste 2600
Chicago, IL 60707
Phone (887) 632-6637
1611 W Harrison St
Ste 400
Chicago, IL 60612
Phone (312) 243-4244
963 N 129th Infantry Dr
Ste 130
Joliet, IL 60435
Phone (815) 744-1812
55 Shuman Blvd
Ste 700
Naperville, IL 60563
Phone (630) 339-2225
2011 York Rd
Ste 1500
Oak Brook, IL 60523
Phone (708) 492-5630
2450 Wolf Rd
Ste F
Westchester, IL 60154
Phone (708) 236-2750
154 Great Rd
Bedford, MA 01730
Phone (781) 430-8161
55 Fruit St
Boston, MA 02114
55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967
1030 Main St
Waltham, MA 02451
Phone (781) 894-6900
Interoperability endpoints
- tierney.jeffers.1@12576.direct.athenahealth.com
- jeffers.tierney.mgh@direct.partners.masshiway.net
Organizations & group practices 7
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Dermatology Physician
- Boston, MA
- NPI 1801874573
-
dba Doctors Express
- Urgent Care Clinic/Center
- Waltham, MA
- NPI 1417205105
-
- General Acute Care Hospital
- Boston, MA
- NPI 1023049236
-
- Durable Medical Equipment & Medical Supplies
- Buffalo Grove, IL
- NPI 1043180839
-
dba Massachusetts General Hospital Outpatient Pharmacy
- General Acute Care Hospital
- Boston, MA
- NPI 1508390014
-
dba AFC Urgent Care - Cambridge
- Urgent Care Clinic/Center
- Cambridge, MA
- NPI 1245123587
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Oak Park, IL
- NPI 1558391706
-
- Children's Hospital
- Chicago, IL
- NPI 1801908728
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1932213600
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1594944000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1755043200000",
"number": "1508474370",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 735263",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606735263",
"telephone_number": "877-632-6637"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "55 SHUMAN BLVD STE 700",
"city": "NAPERVILLE",
"state": "IL",
"postal_code": "605638422",
"telephone_number": "877-632-6637",
"fax_number": "708-409-5179"
}
],
"practiceLocations": [],
"basic": {
"last_name": "JEFFERS",
"first_name": "TIERNEY",
"middle_name": "REGAN",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-07-17",
"last_updated": "2025-08-13",
"certification_date": "2025-08-13",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "MA",
"license": "PA7758",
"primary": false
},
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "IL",
"license": "085011097",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Naperville, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.