Individual provider Active NPI

Jonathan Michael Glanzman, MD

  • Radiation Oncology Physician
  • Providence, RI
National Provider Identifier
1649533175
Registry record updated May 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
MD20722 Issued in RI
Practice address
593 Eddy St
Providence, RI 02903-4923
Phone
(401) 444-8311
NPI assigned
Jun 19, 2012
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 18, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 258959 MA
Radiation Oncology Physician 2085R0001X MD20722 RI Primary

Addresses

Primary practice location

593 Eddy St
Providence, RI 02903-4923

Mailing address

15 La Salle SQ
Providence, RI 02903-1814
Phone (401) 444-6779

Other practice location 1

115 Cass Ave Unit 1
Woonsocket, RI 02895-4705
Phone (401) 356-1701

Other practice location 2

50 Maude St
Providence, RI 02908-4325
Phone (401) 456-2690

Other practice location 3

795 Middle St
Fall River, MA 02721-1733
Phone (508) 996-3991

Other identifiers 1

IdentifierTypeStateIssuer
MD20722OtherRILICENSE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, RI2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20140908002513 MA Practitioner - Radiation Oncology 3678792504 Reassigns benefits to 1 organization
I20250820002171 RI Practitioner - Radiation Oncology 3678792504 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Albert Einstein College of Medicine of Yeshiva University, 2007
Medicare assignment
May accept Medicare assignment
Group practices
Southern New England Regional Cancer Center, LLCGroup PAC ID 8820049752, 6 clinicians
Roger Williams Radiation Therapy LLCGroup PAC ID 3476658188, 6 clinicians
Lifespan Physician Group IncGroup PAC ID 2567455082, 1,151 clinicians
Lifespan Physician Group of Massachusetts IncGroup PAC ID 3870020399, 458 clinicians

Practice addresses (Care Compare)

115 Cass Ave
Woonsocket, RI 02895-4705
Phone (401) 356-1701

50 Maude St
Providence, RI 02908-4325
Phone (401) 456-2690

593 Eddy St
Providence, RI 02903-4923
Phone (401) 444-8311

70 Walnut St
Suite 100
Foxborough, MA 02035-5312
Phone (508) 698-3266

Hospital & facility affiliations

  • Brown University Health Morton Hospital Hospital, Taunton, MA, CCN 220073
  • Rhode Island Hospital Hospital, Providence, RI, CCN 410007
  • Umass Memorial Medical Center/University Campus Hospital, Worcester, MA, CCN 220163
  • Saint Anne'S Hospital Hospital, Fall River, MA, CCN 220020

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

State licenses

LicenseStateTypeSpecialty
258959MAMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Rhode Island Hospital CurrentSince Aug 12, 2025 Accepting new patients
Lifespan Corporation Current Accepting new patients
Lifespan Physician Group, Inc. CurrentSince Aug 12, 2025 Accepting new patients
Rhode Island Hospital CurrentSince Aug 12, 2025 Accepting new patients
Lifespan Physician Group, Inc. CurrentSince Aug 12, 2025 Accepting new patients
Radiosurgery Center of Rhode Island LLC Radiation Oncology CurrentSince Jan 7, 2026 Accepting new patients
Lifespan Physician Group of Massachusetts Inc CurrentSince Nov 1, 2025 Accepting new patients
Southern New England Regional Cancer Center, LLC Radiation Oncology CurrentSince Aug 1, 2025 Accepting new patients
Roger Williams Radiation Therapy, LLC Radiation Oncology CurrentSince Aug 1, 2025 Accepting new patients
Rhode Island Hospital Past Accepting new patients
Lifespan Physician Group, Inc. Past Accepting new patients

Locations

795 Middle St
Fall River, MA 02721
Phone (508) 235-5046

70 Walnut St
Ste 100
Foxborough, MA 02035
Phone (508) 698-3266

531 Faunce Corner Rd
North Dartmouth, MA 02747
Phone (508) 991-2255

1454 S County Trl
Ste 2100
East Greenwich, RI 02818
Phone (401) 606-2000

1454 S County Trl
Ste 1400
East Greenwich, RI 02818
Phone (844) 222-2881

701 George Washington Hwy
Ste 101
Lincoln, RI 02865
Phone (401) 201-8000

11 Friendship St
Newport, RI 02840
Phone (401) 845-1110

11 Friendship St
#1
Newport, RI 02840
Phone (401) 845-1646

185A High Service Ave
North Providence, RI 02904
Phone (401) 354-6050

117 Ellenfield St
Ste 101
Providence, RI 02905
Phone (401) 444-4318

593 Eddy St
Providence, RI 02903

50 Maude St
Providence, RI 02908
Phone (401) 456-2200

15 La Salle Sq
Providence, RI 02903

593 Eddy St
Bsmt Apc
Providence, RI 02903
Phone (401) 444-8311

164 Summit Ave
Providence, RI 02906
Phone (401) 793-2104

593 Eddy St
Ste 9B
Providence, RI 02903
Phone (401) 444-5280

450 Toll Gate Rd
Warwick, RI 02886
Phone (401) 732-2300

115 Cass Ave
Woonsocket, RI 02895
Phone (401) 356-1701

115 Cass Ave
#1
Woonsocket, RI 02895
Phone (401) 228-0606

Interoperability endpoints

  • Direct secure messaging: jglanzman237534@brownhealth.medalliesdirect.net

Organizations & group practices 11

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 7

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": "1340064000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779062400000",
    "number": "1649533175",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15 LA SALLE SQ",
            "city": "PROVIDENCE",
            "state": "RI",
            "postal_code": "029031814",
            "telephone_number": "401-444-6779"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "593 EDDY ST",
            "city": "PROVIDENCE",
            "state": "RI",
            "postal_code": "029034923",
            "telephone_number": "401-444-8311"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "115 Cass Ave Unit 1",
            "address_purpose": "LOCATION",
            "city": "Woonsocket",
            "state": "RI",
            "postal_code": "028954705",
            "country_code": "US",
            "telephone_number": "401-356-1701",
            "fax_number": "401-356-4537",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "50 Maude St",
            "address_purpose": "LOCATION",
            "city": "Providence",
            "state": "RI",
            "postal_code": "029084325",
            "country_code": "US",
            "telephone_number": "401-456-2690",
            "fax_number": "401-456-6540",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "795 Middle St",
            "address_purpose": "LOCATION",
            "city": "Fall River",
            "state": "MA",
            "postal_code": "027211733",
            "country_code": "US",
            "telephone_number": "508-996-3991",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GLANZMAN",
        "first_name": "JONATHAN",
        "middle_name": "MICHAEL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-06-19",
        "last_updated": "2026-05-18",
        "certification_date": "2026-05-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "MA",
            "license": "258959",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "RI",
            "license": "MD20722",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE",
            "identifier": "MD20722",
            "state": "RI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Providence, RI

Sources for this page

Verify at the official NPI Registry.