James Chatham Jr., M.D.

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

ME104326 Issued in FL

Practice address

8201 E Riverside Blvd
Rockford, IL 61114-2300

Phone

(815) 971-7000

NPI assigned

Dec 14, 2006

Last updated

Jul 10, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in FL, NY, TX, CA, IL5 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 5

Specialty

Diagnostic Radiology

Education

University of Florida College of Medicine, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Humboldt Park HealthGroup PAC ID 8921907072, 106 clinicians

Simonmed Imaging Florida LLCGroup PAC ID 6608036108, 302 clinicians

Rockford Health PhysiciansGroup PAC ID 2567374036, 520 clinicians

On-Line Radiology Medical Group IncGroup PAC ID 0648311548, 66 clinicians

Pco PCGroup PAC ID 5395179329, 82 clinicians

Thorek Radiology Group NFPGroup PAC ID 1658786421, 41 clinicians

Mercy Health System CorporationGroup PAC ID 7416860440, 749 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• McLaren Northern Michigan Hospital, Petoskey, MI, CCN 230105
• Thorek Memorial Hospital Hospital, Chicago, IL, CCN 140115
• Humboldt Park Health Hospital, Chicago, IL, CCN 140206
• Kittitas Valley Community Hospital Hospital, Ellensburg, WA, CCN 501333
• Lewis County General Hospital Hospital, Lowville, NY, CCN 331317

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 50)

Networks

• Optimum HealthCare HMO Network
• Freedom Health HMO Network

Interoperability endpoints

• Direct secure messaging: jchatham274372@mhsdirect.net

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Humboldt Park Health

  • Family Medicine Physician
  • Chicago, IL
  • NPI 1740417153

  FL

  Medicare reassignment Care Compare group NPD
• Rockford Health Physicians

  dba Mercyhealth Physicians

  • Multi-Specialty Clinic/Center
  • Rockford, IL
  • NPI 1043242886
  Medicare reassignment Care Compare group NPD
• Thorek Radiology Group NFP

  • Diagnostic Radiology Physician
  • Chicago, IL
  • NPI 1588261978
  Medicare reassignment Care Compare group NPD
• Mercy Health System Corporation

  dba MHS Physician Services

  • Multi-Specialty Clinic/Center
  • Janesville, WI
  • NPI 1598718603

  IL

  Medicare reassignment Care Compare group NPD
• On-Line Radiology Medical Group Inc

  • Diagnostic Radiology Physician
  • Riverside, CA
  • NPI 1710158498

  FL

  Medicare reassignment Care Compare group NPD
• Pco PC

  dba PCO Radiology PC

  • Diagnostic Radiology Physician
  • Lowville, NY
  • NPI 1881230563

  FL

  Medicare reassignment Care Compare group NPD
• Simonmed Imaging Florida LLC

  dba Simonmed Imaging Tampa

  • Diagnostic Radiology Physician
  • Tampa, FL
  • NPI 1477830818
  Medicare reassignment Care Compare group NPD
• Howard Simon MD PLLC

  dba Simonmed Imaging

  • Diagnostic Radiology Physician
  • Chicago, IL
  • NPI 1659930998

  FL

  Medicare reassignment NPD
• Mercy Harvard Hospital Inc

  • Critical Access Hospital
  • Harvard, IL
  • NPI 1427001445
  Medicare reassignment NPD
• American Imaging of Southwest Florida,Inc

  • Diagnostic Radiology Physician
  • Port Charlotte, FL
  • NPI 1164888954
  Medicare reassignment NPD
• Brookdale Family Care Center, Inc.

  dba BFCC Flatbush

  • Internal Medicine Physician
  • Brooklyn, NY
  • NPI 1962459644
  Medicare reassignment NPD
• Brookdale Hospital Medical Center

  • General Acute Care Hospital
  • Brooklyn, NY
  • NPI 1720028772
  Medicare reassignment NPD

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

• Humboldt Park Health

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1972594877
  Care Compare affiliation
• Thorek Memorial Hospital

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1982643961
  Care Compare affiliation
• Kittitas County Public Hospital Dist 1

  dba Kittitas Valley Community Hospital

  • Critical Access Hospital
  • Ellensburg, WA
  • NPI 1356375307
  Care Compare affiliation
• Lewis County

  dba Lewis County General Hospital

  • Rural Acute Care Hospital
  • Lowville, NY
  • NPI 1487689402
  Care Compare affiliation
• Lewis County General Hospital

  • Critical Access Hospital
  • Lowville, NY
  • NPI 1619390838
  Care Compare affiliation
• McLaren Northern Michigan

  • Psychiatric Hospital Unit
  • Cheboygan, MI
  • NPI 1336897735
  Care Compare affiliation
• McLaren Northern Michigan

  • General Acute Care Hospital
  • Petoskey, MI
  • NPI 1992812580
  Care Compare affiliation

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

{
    "created_epoch": "1166054400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752105600000",
    "number": "1629130141",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29624 NETWORK PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606731296",
            "telephone_number": "608-756-6278"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8201 E RIVERSIDE BLVD",
            "city": "ROCKFORD",
            "state": "IL",
            "postal_code": "611142300",
            "telephone_number": "815-971-7000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "875 S Route 31",
            "address_purpose": "LOCATION",
            "city": "Crystal Lake",
            "state": "IL",
            "postal_code": "600148190",
            "country_code": "US",
            "telephone_number": "779-220-5500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "901 Grant St",
            "address_purpose": "LOCATION",
            "city": "Harvard",
            "state": "IL",
            "postal_code": "600331821",
            "country_code": "US",
            "telephone_number": "815-943-5431",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5915 Riverview Blvd",
            "address_purpose": "LOCATION",
            "city": "Bradenton",
            "state": "FL",
            "postal_code": "342091860",
            "country_code": "US",
            "telephone_number": "941-730-0747",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHATHAM",
        "first_name": "JAMES",
        "name_suffix": "Jr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-14",
        "last_updated": "2025-07-10",
        "certification_date": "2025-06-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "FL",
            "license": "TRN9159",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "FL",
            "license": "ME104326",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Judy Chanthalangsy, O.D.
• Viengkeo Chanthaloth- Phasouk, LCSW
• Logan John Chapman-Neal
• Heather Chapman
• Charles R. Welford MD SC
• Arshan Z Chaudhri, MD
• Kanwal Shazia Chaudhry, M.D.
• Herman Chen, PHARMD
• David M Cheng, MD
• Derek SF Cheng, DMD, MS

• Diagnostic Radiology Physician in Rockford, IL
• Providers in Rockford, IL by specialty
• Diagnostic Radiology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 10, 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.

Verify at the official NPI Registry.