Individual provider Active NPI

Ian Alexander Monast, DO

  • Diagnostic Radiology Physician
  • Saint Louis, MO
National Provider Identifier
1780033241
Registry record updated Dec 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
333028 Issued in NY
Practice address
510 S Kingshighway Blvd
Dept Radiology
Saint Louis, MO 63110-1016
Phone
(314) 362-7200
Fax
(314) 747-4189
NPI assigned
Jun 6, 2016
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 333028 NY Primary
Diagnostic Radiology Physician 2085R0202X 2021015241 MO

Addresses

Primary practice location

510 S Kingshighway Blvd
Dept Radiology
Saint Louis, MO 63110-1016

Mailing address

660 S Euclid Ave
CB 8131
Saint Louis, MO 63110-1010
Phone (314) 362-7200

Electronic endpoints 1

TypeEndpointUseAffiliation
FHIR URL https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Washington University

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL, PA, NY3 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 3

Enrollment IDStateProvider typePAC IDDetails
I20220823002077 IL Practitioner - Diagnostic Radiology 3274896675 Reassigns benefits to 10 organizations
I20241210001467 PA Practitioner - Diagnostic Radiology 3274896675 Reassigns benefits to 1 organization
I20251218000153 NY Practitioner - Diagnostic Radiology 3274896675 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Kansas City University of Med & Biosciences, College of Osteo Med, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Chautauqua Medical Practice PCGroup PAC ID 5294920203, 103 clinicians
Niagara Frontier Radiologic Associates PCGroup PAC ID 0345349387, 21 clinicians
Sra Medical Imaging LLCGroup PAC ID 1759369663, 40 clinicians
Millennium Medical Imaging PCGroup PAC ID 5799776910, 34 clinicians
Empire State Radiology P CGroup PAC ID 4385075241, 266 clinicians
Allegheny Clinic RadiologyGroup PAC ID 8426364738, 153 clinicians
Trinity Medical Wny PCGroup PAC ID 5193907517, 207 clinicians

Practice addresses (Care Compare)

189 E Main St
Westfield, NY 14787-1104
Phone (716) 793-2221

2 S707 Ave Normandy W
Oak Brook, IL 60523-1058
Phone (716) 447-6111

265 S Prospect Ave
Clarendon Hills, IL 60514-1441
Phone (718) 223-4685

320 E N Ave
Pittsburgh, PA 15212-4756
Phone (412) 359-2459

3799 Commerce CT
Suite 200
North Tonawanda, NY 14120-2027
Phone (716) 332-1320

Hospital & facility affiliations

  • Saint Vincent Hospital Hospital, Erie, PA, CCN 390009
  • St Marys Healthcare Hospital, Amsterdam, NY, CCN 330047
  • Saratoga Hospital Hospital, Saratoga Springs, NY, CCN 330222
  • Garnet Health Medical Center Hospital, Middletown, NY, CCN 330126
  • Allegheny General Hospital Hospital, Pittsburgh, PA, CCN 390050

Merit-based Incentive Payment System (MIPS)

Final score
0 of 100Reported as individual
Quality
0
Improvement activities
0
Cost
0

Merit-based Incentive Payment System (MIPS)

Final score
75 of 100Reported as group

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

Practice roles

OrganizationSpecialtyStatusNew patients
Empire State Radiology P C Diagnostic Radiology CurrentSince Oct 28, 2024 Accepting new patients
Trinity Medical Wny PC CurrentSince Nov 1, 2025 Accepting new patients
Millennium Medical Imaging PC Diagnostic Radiology CurrentSince Feb 1, 2025 Accepting new patients
Imaging Associates of Michigan PLLC Diagnostic Radiology CurrentSince Oct 14, 2025 Accepting new patients
Allegheny Clinic Radiology Diagnostic Radiology CurrentSince Nov 6, 2024 Accepting new patients
Radiology Affiliates of Central New Jersey PC Diagnostic Radiology CurrentSince Oct 18, 2025 Accepting new patients
Niagara Frontier Radiologic Associates PC Diagnostic Radiology CurrentSince Jan 1, 2025 Accepting new patients
Clinical Radiologists, S.C. Diagnostic Radiology CurrentSince Aug 21, 2024 Accepting new patients
Adi Radiology PC Diagnostic Radiology CurrentSince Sep 12, 2025 Accepting new patients
Trinity Medical Wny PC CurrentSince Nov 1, 2025 Accepting new patients
Radiology Alliance PC Diagnostic Radiology CurrentSince Sep 25, 2025 Accepting new patients
Sra Medical Imaging LLC Diagnostic Radiology CurrentSince Dec 1, 2024 Accepting new patients
Medical X-Ray Consultants, LTD Diagnostic Radiology CurrentSince Dec 9, 2025 Accepting new patients
Radiology Associates of Canton, Inc. Diagnostic Radiology Past Accepting new patients
Medical Xray Consultants, LTD PastSince May 16, 2021 Accepting new patients

Locations

3050 Montvale Dr
Ste A
Springfield, IL 62704
Phone (217) 222-9302

144 Genesee St
Fl 3
Buffalo, NY 14203
Phone (716) 601-3690

3435 Bailey Ave
Buffalo, NY 14215
Phone (716) 835-2966

3730 Sheridan Dr
Buffalo, NY 14226
Phone (716) 601-3766

8881 State Route 97
Callicoon, NY 12723
Phone (845) 333-6800

102 Clowes Ave
Goshen, NY 10924
Phone (845) 333-7200

707 E Main St
Middletown, NY 10940
Phone (845) 333-1000

38 Concord Rd
Monticello, NY 12701
Phone (845) 333-6500

3799 Commerce Ct
Ste 200
North Tonawanda, NY 14120
Phone (716) 332-1320

992 N Village Ave
Rockville Ctr, NY 11570
Phone (516) 705-2910

211 Church St
Saratoga Springs, NY 12866
Phone (518) 583-8461

2950 Elmwood Ave
Tonawanda, NY 14217
Phone (716) 447-6100

189 E Main St
Westfield, NY 14787
Phone (716) 326-4921

2 Park Ave
Yonkers, NY 10703
Phone (914) 964-7300

232 W 25th St
Erie, PA 16544
Phone (814) 452-5337

4800 Friendship Ave
Pittsburgh, PA 15224
Phone (412) 359-3030

320 E North Ave
Pittsburgh, PA 15212
Phone (412) 359-3131

2323 Crestmoor Rd
Nashville, TN 37215

Interoperability endpoints

  • Direct secure messaging: imonast967285@direct.ahn.org

Organizations & group practices 17

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.

View all 17

Hospital & facility affiliations 25

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

View all 25

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1465171200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765411200000",
    "number": "1780033241",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "660 S EUCLID AVE",
            "address_2": "CB 8131",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101010",
            "telephone_number": "314-362-7200",
            "fax_number": "314-747-4189"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "510 S KINGSHIGHWAY BLVD",
            "address_2": "DEPT RADIOLOGY",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101016",
            "telephone_number": "314-362-7200",
            "fax_number": "314-747-4189"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MONAST",
        "first_name": "IAN",
        "middle_name": "ALEXANDER",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-06-06",
        "last_updated": "2025-12-11",
        "certification_date": "2025-12-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "NY",
            "license": "333028",
            "primary": true
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MO",
            "license": "2021015241",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "510 S Kingshighway Blvd",
            "address_2": "Dept Radiology",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101016",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.