John Klein

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

036170489 Issued in IL

Practice address

1725 W Harrison St
Chicago, IL 60612-3841

Phone

(312) 942-4252

NPI assigned

Mar 22, 2016

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in IL, PA2 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

General Surgery

Education

University of Texas Medical School at San Antonio, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Rush University Medical GroupGroup PAC ID 5496658874, 1,521 clinicians

Pinnacle Health Medical ServicesGroup PAC ID 7618960493, 1,025 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Rush Oak Park Hospital Hospital, Oak Park, IL, CCN 140063
• Upmc Hanover Hospital, Hanover, PA, CCN 390233

Procedures performed for Medicare patients

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.

• Rush University Medical Group

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1093819542

  IL, Surgery

  Medicare reassignment Care Compare group NPD
• Pinnacle Health Medical Services

  • Family Medicine Physician
  • Harrisburg, PA
  • NPI 1932143427

  PA

  Medicare reassignment Care Compare group

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

• Rush Oak Park Hospital Inc

  • General Acute Care Hospital
  • Oak Park, IL
  • NPI 1558391706

  Hospital

  Care Compare affiliation
• Upmc Hanover

  • Clinic/Center
  • Hanover, PA
  • NPI 1700084944

  Hospital

  Care Compare affiliation
• Upmc Hanover

  • General Acute Care Hospital
  • Hanover, PA
  • NPI 1730158981

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1458604800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1669834313",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123841",
            "telephone_number": "312-942-4252"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123841",
            "telephone_number": "312-942-4252"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2201 Brunswick Dr Ste 2300",
            "address_purpose": "LOCATION",
            "city": "Hanover",
            "state": "PA",
            "postal_code": "173318350",
            "country_code": "US",
            "telephone_number": "717-316-7165",
            "fax_number": "717-316-1611",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1450 San Pablo St #2000",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "900893833",
            "country_code": "US",
            "telephone_number": "800-872-2273",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1653 W Congress Pkwy",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123833",
            "country_code": "US",
            "telephone_number": "312-942-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KLEIN",
        "first_name": "JOHN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-03-22",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "PA",
            "license": "MD494214",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IL",
            "license": "036170489",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "179663",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Elisabeth Florence Klein, LSW
• Evan Klein
• Gabrielle Klein, M.ED.
• Jeremy Klein, MD
• Jesse Klein, PH.D.
• Jon Paul Klein, MD
• Joyce Klein, LCSW
• Julie Klein, O.D.
• Kathleen Klein
• Margaret Klein, MD, MPH

• Surgery Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Surgery Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 30, 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.