Individual provider Active NPI

Theodore Schley Rader IV, MD, MS

  • Infectious Disease Physician
  • Worcester, MA
National Provider Identifier
1710477146
Registry record updated Jul 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
1015690 Issued in MA
Practice address
55 Lake Ave N
Worcester, MA 01655-0002
Phone
(774) 441-8230
NPI assigned
May 10, 2018
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 25, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Infectious Disease Physician 207RI0200X 1015690 MA Primary
Infectious Disease Physician 207RI0200X 35.156954 OH

Addresses

Primary practice location

55 Lake Ave N
Worcester, MA 01655-0002

Mailing address

PO Box 415348
Boston, MA 02241-5348
Phone (800) 225-8885

Other practice location 1

55 Sayles St
Southbridge, MA 01550-1729
Phone (508) 764-2400

Other practice location 2

119 Belmont St
Worcester, MA 01605-2903
Phone (774) 441-8230

Other practice location 3

9500 Euclid Ave
Cleveland, OH 44195-0001
Phone (216) 444-2200

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230915000209 MA Practitioner - Infectious Disease 9234486028 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Infectious Disease
Education
University of Toledo College of Medicine, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Umass Memorial Medical Group IncGroup PAC ID 4284539891, 2,494 clinicians

Practice addresses (Care Compare)

55 Lake Ave N
Worcester, MA 01655-0002
Phone (508) 334-1000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as apm
Quality
82.98
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine, Master of Science

State licenses

LicenseStateTypeSpecialty
1015690MAMDInfectious Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Umass Memorial Medical Group Inc CurrentSince Sep 17, 2023 Accepting new patients
Umass Memorial Medical Group, Inc. CurrentSince Sep 17, 2023 Accepting new patients

Locations

55 Sayles St
Southbridge, MA 01550
Phone (508) 764-2400

119 Belmont St
Worcester, MA 01605
Phone (508) 334-6345

55 Lake Ave N
Worcester, MA 01655
Phone 508334100048862

Organizations & group practices 2

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 2

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": "1525910400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784937600000",
    "number": "1710477146",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 415348",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022415348",
            "telephone_number": "800-225-8885",
            "fax_number": "412-647-5809"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 LAKE AVE N",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016550002",
            "telephone_number": "774-441-8230"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "55 Sayles St",
            "address_purpose": "LOCATION",
            "city": "Southbridge",
            "state": "MA",
            "postal_code": "015501729",
            "country_code": "US",
            "telephone_number": "508-764-2400",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "119 Belmont St",
            "address_purpose": "LOCATION",
            "city": "Worcester",
            "state": "MA",
            "postal_code": "016052903",
            "country_code": "US",
            "telephone_number": "774-441-8230",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9500 Euclid Ave",
            "address_purpose": "LOCATION",
            "city": "Cleveland",
            "state": "OH",
            "postal_code": "441950001",
            "country_code": "US",
            "telephone_number": "216-444-2200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RADER",
        "first_name": "THEODORE",
        "middle_name": "SCHLEY",
        "name_suffix": "IV",
        "credential": "MD, MS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-05-10",
        "last_updated": "2026-07-25",
        "certification_date": "2026-07-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "MA",
            "license": "1015690",
            "primary": true
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "OH",
            "license": "35.156954",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Worcester, MA

Sources for this page

Verify at the official NPI Registry.