Individual provider Active NPI

Tierney Regan Jeffers

  • Physician Assistant
  • Naperville, IL
National Provider Identifier
1508474370
Registry record updated Aug 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
085011097 Issued in IL
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

Updated by the provider on Aug 13, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
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, IL2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20201204002155 MA Practitioner - Physician Assistant 2860803335 Reassigns benefits to 3 organizations
I20250718001947 IL Practitioner - Physician Assistant 2860803335 Reassigns benefits to 1 organization

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
Orthomidwest, PLLCGroup PAC ID 0749183713, 531 clinicians

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

OrganizationSpecialtyStatusNew patients
Orthomidwest, PLLC CurrentSince Jul 10, 2025 Accepting new patients
Orthomidwest, PLLC Physician Assistant CurrentSince Jul 10, 2025 Accepting new patients
Massachusetts General Physicians Organization Inc CurrentSince Jun 9, 2022 Accepting new patients
Patriot Urgent Care Professionals, PC CurrentSince Nov 1, 2020 Accepting new patients
General Hospital Corp Current Accepting new patients
Patriot Urgent Care Professionals PC CurrentSince Nov 1, 2020 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

  • Direct secure messaging: tierney.jeffers.1@12576.direct.athenahealth.com
  • Direct secure messaging: 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.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

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

Verify at the official NPI Registry.