Nehemiah T Tan, M.D.

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

License

036085107 Issued in IL

Practice address

200 Richmond Ave E Ste 3
Mattoon, IL 61938-4652

Phone

(217) 238-7000

Fax

(217) 234-2060

NPI assigned

Apr 28, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

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

Rheumatology

Education

Other, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sarah Bush Lincoln Health CenterGroup PAC ID 5092614867, 411 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sarah Bush Lincoln Health Center Hospital, Mattoon, IL, CCN 140189
• St Marys Hospital Hospital, Decatur, IL, CCN 140166
• Decatur Memorial Hospital Hospital, Decatur, IL, CCN 140135
• Fayette County Hospital Hospital, Vandalia, IL, CCN 141346
• Pana Community Hospital Hospital, Pana, IL, CCN 141341

Merit-based Incentive Payment System (MIPS)

Final score

18.63 of 100Reported as individual

Quality

0

Improvement activities

0

Cost

62.11

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Sarah Bush Lincoln Health Center

  • General Acute Care Hospital
  • Mattoon, IL
  • NPI 1669564662
  Medicare reassignment Care Compare group NPD
• Sarah Bush Lincoln Health Center

  • Rural Health Clinic/Center
  • Greenville, IL
  • NPI 1811858970
  NPD

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

• Decatur Memorial Hospital

  • General Acute Care Hospital
  • Decatur, IL
  • NPI 1548357973
  Care Compare affiliation
• Pana Community Hospital Association

  • Critical Access Hospital
  • Pana, IL
  • NPI 1942326970
  Care Compare affiliation
• Sarah Bush Lincoln Health Center

  • General Acute Care Hospital
  • Mattoon, IL
  • NPI 1669564662
  Care Compare affiliation
• Sarah Bush Lincoln Health Center

  • Critical Access Hospital
  • Vandalia, IL
  • NPI 1912988734
  Care Compare affiliation
• St Marys Hospital Decatur of the Hospital Sisters of the Third Order

  • General Acute Care Hospital
  • Decatur, IL
  • NPI 1326041229
  Care Compare affiliation

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

{
    "created_epoch": "1146182400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775433600000",
    "number": "1578520995",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 372",
            "city": "MATTOON",
            "state": "IL",
            "postal_code": "619380372",
            "telephone_number": "217-258-2581",
            "fax_number": "217-258-2216"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 RICHMOND AVE E STE 3",
            "city": "MATTOON",
            "state": "IL",
            "postal_code": "619384652",
            "telephone_number": "217-238-7000",
            "fax_number": "217-234-2060"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TAN",
        "first_name": "NEHEMIAH",
        "middle_name": "T",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-04-28",
        "last_updated": "2026-04-06",
        "certification_date": "2026-04-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "IL",
            "license": "036085107",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "036085107",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Marci Elaine Summers, CCC-SLP
• August Supan, MSW
• Michelle Switzer
• Leslie A Taggart, APN
• Kyle Justin Tam, BS
• Kathryn E Tanner, MD
• Margaret Louisa Tate, DO
• Keisha Renee Taylor, RSA
• Krista Ann Taylor, LCPC
• Stacey Tebbe

• Rheumatology Physician in Mattoon, IL
• Providers in Mattoon, IL by specialty
• Rheumatology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 6, 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.