Siddhartha Shyam Nadkarni, M.D.

Primary specialty

Epilepsy PhysicianTaxonomy code 2084E0001X

License

25MA11349100 Issued in NJ

Practice address

223 E 34TH St
New York, NY 10016-4852

Phone

(646) 558-0807

NPI assigned

Aug 4, 2006

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in NY, NJ2 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

EpileptologistsAlso: Psychiatry

Education

University of Miami, LM Miller School of Medicine, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Epilepsy and Neurophysiology Medical Consultants PAGroup PAC ID 5395706501, 22 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

99.8 of 100Reported as group

Promoting interoperability

88

Improvement activities

40

Merit-based Incentive Payment System (MIPS)

Final score

81.33 of 100Reported as group

Quality

66.38

Promoting interoperability

100

Improvement activities

40

Cost

71.39

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nsiddhartha828226@ahs.direct-ci.com
• FHIR API: https://fhir4.healow.com/fhir/r4/IHJHBD

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.

• Epilepsy & Neurophysiology Medical Consultants PA

  • Neurology Physician
  • Hackensack, NJ
  • NPI 1013998830
  Medicare reassignment Care Compare group NPD
• Hackensack Meridian Health Medical Group - Specialty Care PC

  • Surgical Critical Care Physician
  • Red Bank, NJ
  • NPI 1215989249
  Medicare reassignment NPD
• New York University

  • Cardiovascular Disease Physician
  • Boynton Beach, FL
  • NPI 1285826438

  NY

  Medicare reassignment NPD
• Epilepsy & Neurophysiology Medical Consultants, PA

  • Neurology Physician
  • Pennington, NJ
  • NPI 1386003580
  NPD
• Hackensack Meridian Health Medical Group - Specialty Care PC

  • Durable Medical Equipment & Medical Supplies
  • North Bergen, NJ
  • NPI 1215734199
  NPD
• New York University

  • Physical Medicine & Rehabilitation Physician
  • Boynton Beach, FL
  • NPI 1104787613
  NPD
• Crosfield Medical Associates

  • Neurology Physician
  • West Nyack, NY
  • NPI 1609093186
  NPD (past)

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

{
    "created_epoch": "1154649600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767484800000",
    "number": "1861400814",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "331 NEWMAN SPRINGS RD STE 220",
            "city": "RED BANK",
            "state": "NJ",
            "postal_code": "077015792",
            "telephone_number": "732-807-0877",
            "fax_number": "201-751-1680"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "223 E 34TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100164852",
            "telephone_number": "646-558-0807"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "360 Essex St Ste 303",
            "address_purpose": "LOCATION",
            "city": "Hackensack",
            "state": "NJ",
            "postal_code": "076018566",
            "country_code": "US",
            "telephone_number": "551-996-8100",
            "fax_number": "551-996-4140",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NADKARNI",
        "first_name": "SIDDHARTHA",
        "middle_name": "SHYAM",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-04",
        "last_updated": "2026-01-04",
        "certification_date": "2026-01-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "NJ",
            "license": "25MA11349100",
            "primary": false
        },
        {
            "code": "2084E0001X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Epilepsy",
            "state": "NJ",
            "license": "25MA11349100",
            "primary": true
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "NY",
            "license": "219164",
            "primary": false
        },
        {
            "code": "2084N0600X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Clinical Neurophysiology",
            "state": "NY",
            "license": "219164",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2677916",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Nur Ain Nadir, MD
• Fahema Aktar Nadira, MBBS
• Girish Nitin Nadkarni, MD
• Gitanjali Nadkarni
• Shree Nadkarni, MD
• Christina Nadler, PHD, LP
• Diane L. Nadler, LCSW
• Hannah Brin Nadler, LCSW
• Kerin Nadler, LCAT, BC-DMT
• Lisa Nadler

• Epilepsy Physician in New York, NY
• Providers in New York, NY by specialty
• Epilepsy Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 4, 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.