Rey Arnold Sriaroon, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

036139337 Issued in IL

Practice address

801 S Washington St
Naperville, IL 60540-7430

Phone

(630) 527-3000

NPI assigned

Apr 2, 2013

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in IN, IL2 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

Specialty

Internal Medicine

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

24 On Physician Partners PCGroup PAC ID 1557613130, 31 clinicians

Endeavor Health Medical GroupGroup PAC ID 2163334699, 3,330 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Edward Hospital Hospital, Naperville, IL, CCN 140231
• Swedish Hospital Hospital, Chicago, IL, CCN 140114
• St Mary Medical Center Inc Hospital, Hobart, IN, CCN 150034

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rsriaroon178869@direct.edward.org

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.

• Endeavor Health Medical Group

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• 24 On Physician Partners, PC

  • Hospitalist Physician
  • Hobart, IN
  • NPI 1013497106
  Medicare reassignment Care Compare group NPD
• 24 On Physicians, PC

  • Hospitalist Physician
  • Ottawa, IL
  • NPI 1346480431
  Medicare reassignment NPD
• Edward Health Ventures

  • Multi-Specialty Clinic/Center
  • Bolingbrook, IL
  • NPI 1962452912
  Medicare reassignment NPD
• Sound Physicians of Illinois, LLC

  • Hospitalist Physician
  • Bridgeton, MO
  • NPI 1043598865

  IL, Internal Medicine

  Medicare reassignment NPD
• Edward Health Ventures

  • Specialist
  • Naperville, IL
  • NPI 1447501879
  NPD
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Hospitalist Medicine Physicians of Illinois - Rockford, LLC

  • Internal Medicine Physician
  • Rockford, IL
  • NPI 1790263325
  NPD

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

• Edward Hospital

  • General Acute Care Hospital
  • Naperville, IL
  • NPI 1427069632
  Care Compare affiliation
• Swedish Covenant Health

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1831151257
  Care Compare affiliation
• St Mary Medical Center Inc

  • General Acute Care Hospital
  • Hobart, IN
  • NPI 1558463745
  Care Compare affiliation
• St Mary Medical Center Inc

  • General Acute Care Hospital
  • Hobart, IN
  • NPI 1962504175
  Care Compare affiliation

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

{
    "created_epoch": "1364860800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788134400000",
    "number": "1407199003",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "801 S WASHINGTON ST",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605407499",
            "telephone_number": "630-527-3000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "801 S WASHINGTON ST",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605407430",
            "telephone_number": "630-527-3000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1500 S Lake Park Ave",
            "address_purpose": "LOCATION",
            "city": "Hobart",
            "state": "IN",
            "postal_code": "463426638",
            "country_code": "US",
            "telephone_number": "219-942-0551",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SRIAROON",
        "first_name": "REY",
        "middle_name": "ARNOLD",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-04-02",
        "last_updated": "2026-08-31",
        "certification_date": "2026-08-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036139337",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036169337",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IN",
            "license": "01077213A",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Todd Willis Spragg, DDS
• Kevin P Sprenkle, PSY.D
• Nicole M Springer-Iannantuoni, PSY.D.
• Daniel Sproul, DSL, IHP
• Natalie Ann Sprovieri-Karlovic, LPC
• Jayanthi Sridhar, PT
• Padmini Kousalya Sriman, BCBA
• Courtney Srum
• St Patrick Residence
• Natasha St. Victor, LCSW

• Hospitalist Physician in Naperville, IL
• Providers in Naperville, IL by specialty
• Hospitalist Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 31, 2026; 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.