Niru Shamsun Nahar, M.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

254642 Issued in NY

Practice address

423 E 23Rd St
New York, NY 10010-5011

Phone

(212) 686-7500

NPI assigned

Dec 10, 2008

Last updated

Apr 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in NY, PA, NJ3 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 3

Specialty

Psychiatry

Education

Other, 1988

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Boston Neurobehavioral Associates, LLCGroup PAC ID 9436142429, 159 clinicians

Preventive Measures LLCGroup PAC ID 0345563615, 6 clinicians

Redco Group, LLCGroup PAC ID 7911802228, 7 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Luke's Miners Memorial Hospital Hospital, Coaldale, PA, CCN 390183

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nirunahar@tdh.allscriptsdirect.net

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.

• Boston Neurobehavioral Associates, LLC

  • Psychiatry Physician
  • New Bedford, MA
  • NPI 1558415307

  NJ, Single Specialty

  Medicare reassignment Care Compare group NPD
• Preventive Measures, LLC

  • Community/Behavioral Health Agency
  • Allentown, PA
  • NPI 1235470857

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Redco Group, LLC

  dba Clarvida

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Stroudsburg, PA
  • NPI 1538145453

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Downtown Bronx Medical Associates PC

  • Emergency Medical Services (Emergency Medicine) Physician
  • Bronx, NY
  • NPI 1689618407

  Single Specialty

  Medicare reassignment NPD
• Harlem Medical Associates PC

  • General Practice Physician
  • New York, NY
  • NPI 1487957692

  Single Specialty

  Medicare reassignment NPD
• MCCD Psychiatry Services PLLC

  dba Talkiatry

  • Psychiatry Physician
  • New York, NY
  • NPI 1033750823

  Single Specialty

  Medicare reassignment NPD
• Montefiore Medical Center

  • Anesthesiology Physician
  • Bronx, NY
  • NPI 1063525152

  Single Specialty

  Medicare reassignment NPD
• New Horizon Counseling Center Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • South Ozone Park, NY
  • NPI 1366430563

  Single Specialty

  Medicare reassignment NPD
• National Neurobehavioral Associates PC

  • Psychiatry Physician
  • Irvington, NJ
  • NPI 1144193293

  Single Specialty

  Medicare reassignment NPD
• We Care BH LLC

  • Substance Use Disorder Rehabilitation Clinic/Center
  • Yardley, PA
  • NPI 1679326896

  Single Specialty

  Medicare reassignment NPD
• Montefiore Medical Center

  dba Montefiore Community Pharmacy @ CHAM

  • Community/Retail Pharmacy
  • Bronx, NY
  • NPI 1194183715
  NPD
• Bet-El Counseling Services, Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Bethlehem, PA
  • NPI 1922277946

  Psychiatry

  NPD

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

• The Carbon-Schuylkill Community Hospital, Inc.

  dba St. Luke's Miners Memorial Hospital

  • General Acute Care Hospital
  • Coaldale, PA
  • NPI 1437182847
  Care Compare affiliation

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

{
    "created_epoch": "1228867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776038400000",
    "number": "1316182074",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2300 5TH AVE",
            "address_2": "14S",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100371610",
            "telephone_number": "347-726-9551"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "423 E 23RD ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100105011",
            "telephone_number": "212-686-7500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NAHAR",
        "first_name": "NIRU",
        "middle_name": "SHAMSUN",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2008-12-10",
        "last_updated": "2026-04-13",
        "certification_date": "2026-04-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "PA",
            "license": "MD434595",
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "NJ",
            "license": "25MA11328800",
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "NY",
            "license": "254642",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Erika Jane Nagy, LCSW
• Lauren Rae Nagy, MD
• Szilvia Nagy, M.D.
• Delia Alice Nahabedian, LMSW
• Yasaman Nahaei, DDS
• Sharmin Nahar
• Richard Nahas, MD
• Robert Nahass
• Melissa Nahcivan
• Anoosh Mary Nahikian

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

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