Olga Zhalkovska, M.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

17039 Issued in NH

Practice address

250 Pleasant St
Concord, NH 03301-7539

Phone

(603) 227-7000

NPI assigned

Oct 19, 2011

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NH

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

Psychiatry

Education

Other, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Riverbend Community Mental Health, IncGroup PAC ID 6103815584, 39 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Concord Hospital Hospital, Concord, NH, CCN 300001

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.

• Riverbend Community Mental Health, Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Concord, NH
  • NPI 1942264940
  Medicare reassignment Care Compare group NPD
• Concord Hospital, Inc.

  • Psychiatric Hospital Unit
  • Concord, NH
  • NPI 1124070966
  NPD (past)

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

• Concord Hospital, Inc.

  • General Acute Care Hospital
  • Concord, NH
  • NPI 1215988530
  Care Compare affiliation

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

{
    "created_epoch": "1318982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1083999213",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 2032",
            "city": "CONCORD",
            "state": "NH",
            "postal_code": "033022032"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "250 PLEASANT ST",
            "city": "CONCORD",
            "state": "NH",
            "postal_code": "033017539",
            "telephone_number": "603-227-7000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "250 Pleasant St",
            "address_purpose": "LOCATION",
            "city": "Concord",
            "state": "NH",
            "postal_code": "033017559",
            "country_code": "US",
            "telephone_number": "603-415-6624",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZHALKOVSKA",
        "first_name": "OLGA",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-10-19",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "NH",
            "license": "17039",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Robert J Zahn, MD
• Daniel Tyler Zapton, M.D.
• Alaina Zarnowski, BA
• Laura Zbehlik
• Margaret Holland Zeltner, AU.D.
• Wen Qian Zheng, MD
• Stanley Ziarko, MA
• Suzanne Michelle Zick, PA-C
• Sarah Ziegler, MLADC
• Keegan J Ziemba, M.D.

• Psychiatry Physician in Concord, NH
• Providers in Concord, NH by specialty
• Psychiatry Physician in New Hampshire

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 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.