Lalitha Nayak, MD

Primary specialty

Hematology (Internal Medicine) PhysicianTaxonomy code 207RH0000X

License

01095107A Issued in IN

Practice address

1030 W Michigan St FL 2
Indianapolis, IN 46202-5201

Phone

(317) 944-0920

NPI assigned

Mar 1, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 3

Electronic endpoints 3

Medicare fee-for-service enrollment

Enrolled in OH, IN2 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

Hematology

Education

Other, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Iu Health Medical Group LLCGroup PAC ID 9638617913, 4,382 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Indiana University Health Hospital, Indianapolis, IN, CCN 150056
• Eskenazi Health Hospital, Indianapolis, IN, CCN 150024

Merit-based Incentive Payment System (MIPS)

Final score

81.19 of 100Reported as group

Quality

63.13

Promoting interoperability

100

Improvement activities

40

Cost

74.18

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lnayak@direct.iuhealth.org
• Direct secure messaging: lnayak35981@ehrdirect.uhhospitals.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.

• Iu Health Medical Group, LLC

  • General Practice Physician
  • Indianapolis, IN
  • NPI 1326893777
  Medicare reassignment Care Compare group NPD
• University Medical Diagnostic Associates, Inc.

  • Internal Medicine Physician
  • Indianapolis, IN
  • NPI 1861441537

  Hematology & Oncology

  Medicare reassignment NPD
• University Hospitals Medical Group Inc

  • Multi-Specialty Clinic/Center
  • Cleveland, OH
  • NPI 1669499414
  Medicare reassignment NPD
• Multicare Health System

  • Nurse Practitioner
  • Tacoma, WA
  • NPI 1407808413
  NPD (past)
• University Medical Associates

  • Internal Medicine Physician
  • Louisville, KY
  • NPI 1417902925
  NPD (past)

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

• Indiana University Health Inc

  • General Acute Care Hospital
  • Indianapolis, IN
  • NPI 1144266024
  Care Compare affiliation
• The Health and Hospital Corporation of Marion County

  • General Acute Care Hospital
  • Indianapolis, IN
  • NPI 1568407310
  Care Compare affiliation
• The Health and Hospital Corporation of Marion County

  • Methadone Clinic
  • Indianapolis, IN
  • NPI 1760922249

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1172707200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759795200000",
    "number": "1699803866",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 N SHADELAND AVE",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462194959"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1030 W MICHIGAN ST FL 2",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462025201",
            "telephone_number": "317-944-0920"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "11100 Euclid Ave",
            "address_purpose": "LOCATION",
            "city": "Cleveland",
            "state": "OH",
            "postal_code": "441061716",
            "country_code": "US",
            "telephone_number": "216-844-8500",
            "fax_number": "216-368-1166",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "705 Riley Hospital Dr",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462025109",
            "country_code": "US",
            "telephone_number": "317-944-0920",
            "fax_number": "317-968-1162",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NAYAK",
        "first_name": "LALITHA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-03-01",
        "last_updated": "2025-10-07",
        "certification_date": "2025-10-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "OH",
            "license": "35.097317",
            "primary": false
        },
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "IN",
            "license": "01095107A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3154590",
            "state": "OH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "300099356",
            "state": "IN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM PTAN",
            "identifier": "1102296666",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "lalithanayak@uhhs.allscriptsdirect.net",
            "affiliation": "N",
            "address_1": "11100 Euclid Ave",
            "city": "Cleveland",
            "state": "OH",
            "country_code": "US",
            "postal_code": "441061716",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "lnayak@direct.iuhealth.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "705 Riley Hospital Dr",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462025109",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "lnayak@direct.iuhealth.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1030 W Michigan St Fl 2",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462025201",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Chad Naville-Cook, PHARMD
• Nora Ann Navin, PA-C
• Joseph Matthew Navratil, CAA
• Kathleen A Nawa, NP
• Sarah Nawar
• Ravi H Nayak, MD
• Minah Nayeri, PHARMD
• Georgiana Naylor, NP
• Leeanne M. Nazer, MD
• Khaled Nazzal, MD

• Hematology (Internal Medicine) Physician in Indianapolis, IN
• Providers in Indianapolis, IN by specialty
• Hematology (Internal Medicine) Physician in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 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.