Nagarajan Ramakrishnan, MD

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

058525-L Issued in PA

Practice address

562 Shearer St
Medical Arts BLDG Suite # 203
Greensburg, PA 15601-2746

Phone

(724) 837-1894

Fax

(724) 837-0681

NPI assigned

Mar 8, 2006

Last updated

Jul 13, 2026By the provider in NPPES

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 SC

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

Critical Care (Intensivists)

Education

Other, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Hartsville Medical Group LLCGroup PAC ID 7012062714, 78 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/8689/brand/1/csg/1/fhir/r4
• Direct secure messaging: nramakrishnan305838@ecommunitydirect.com
• Direct secure messaging: nramakrishnan35431@direct-ehr-ssmhc.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Hartsville Medical Group LLC

  • Internal Medicine Physician
  • Hartsville, SC
  • NPI 1598995300
  Medicare reassignment Care Compare group NPD
• Pulmonary and Critical Care Associates

  • Specialist
  • Greensburg, PA
  • NPI 1548335268
  NPD (past)

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

{
    "created_epoch": "1141776000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1114995180",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "416 HOOVER DR",
            "city": "LEWISVILLE",
            "state": "TX",
            "postal_code": "750676249",
            "telephone_number": "972-221-9707",
            "fax_number": "724-837-0681"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "562 SHEARER ST",
            "address_2": "MEDICAL ARTS BLDG SUITE # 203",
            "city": "GREENSBURG",
            "state": "PA",
            "postal_code": "156012746",
            "telephone_number": "724-837-1894",
            "fax_number": "724-837-0681"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RAMAKRISHNAN",
        "first_name": "NAGARAJAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-08",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "PA",
            "license": "058525-L",
            "primary": true
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "GA",
            "license": "047014",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Radiologic Consultants, LTD
• Vijayalakshmi Reddy Ragoor, MD
• Owais Rahim, M.D.
• Esther Rahl, RPH
• Ralph a Miranda MD
• Rachel Ann Ramsey, LPC
• Deanna Randall, LMT
• Natasha Ratica, DISPENSING NURSE
• Tina M. Rattan, MA,CCC-SLP
• Nicolas William Rause, PA-C

• Critical Care Medicine (Internal Medicine) Physician in Greensburg, PA
• Providers in Greensburg, PA by specialty
• Critical Care Medicine (Internal Medicine) Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.