Eric Riley Patten, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

036176454 Issued in IL

Practice address

155 E. Brush Hill Rd.
Hospital Medicine
Elmhurst, IL 60126-5658

Phone

(331) 221-8952

Fax

(331) 221-3782

NPI assigned

May 9, 2022

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 IL

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

Specialty

HospitalistAlso: Internal Medicine

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• Elmhurst Memorial Hospital Hospital, Elmhurst, IL, CCN 140200

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD

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

• Elmhurst Memorial Hospital

  • General Acute Care Hospital
  • Elmhurst, IL
  • NPI 1548306343
  Care Compare affiliation

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

{
    "created_epoch": "1652054400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786320000000",
    "number": "1912643305",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4461 STATE ROUTE 159 STE A",
            "city": "CHILLICOTHE",
            "state": "OH",
            "postal_code": "456016000",
            "telephone_number": "740-779-4900",
            "fax_number": "740-779-4909"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "155 E. BRUSH HILL RD.",
            "address_2": "HOSPITAL MEDICINE",
            "city": "ELMHURST",
            "state": "IL",
            "postal_code": "601265658",
            "telephone_number": "331-221-8952",
            "fax_number": "331-221-3782"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4461 State Route 159 Ste A",
            "address_purpose": "LOCATION",
            "city": "Chillicothe",
            "state": "OH",
            "postal_code": "456016000",
            "country_code": "US",
            "telephone_number": "740-779-4900",
            "fax_number": "740-779-4909",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PATTEN",
        "first_name": "ERIC",
        "middle_name": "RILEY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-05-09",
        "last_updated": "2026-08-10",
        "certification_date": "2026-08-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036176454",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036176454",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Yogen Yatin Patel
• Alyssa Marie Paterakis, LCSW
• Giana Paterno, DMD
• Patie LLC
• Patricia a Merwick MD & Assoc SC
• Glenn James Patterson, PTA
• Paul M. Baubly, M.D. S. C.
• Paulette Toburen PSYD Inc
• Ilea K Pavel, PT, DPT
• Amy J Pawlik, PT

• Hospitalist Physician in Elmhurst, IL
• Providers in Elmhurst, 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 10, 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.