Individual provider Active NPI

Peter Hsieh, MD

  • Psychiatry Physician
  • New York, NY
National Provider Identifier
1346827300
Registry record updated Oct 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
335406 Issued in NY
Practice address
109 W 27TH St RM 5S
New York, NY 10001-6208
Phone
(833) 351-8255
NPI assigned
Mar 25, 2021
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 28, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X MD489201 PA
Psychiatry Physician 2084P0800X 335406 NY Primary

Addresses

Primary practice location

109 W 27TH St RM 5S
New York, NY 10001-6208

Mailing address

PO Box 24449
New York, NY 10087-0589
Phone (833) 351-8255

Other practice location 1

680 American Ave
King Of Prussia, PA 19406-4023
Phone (833) 351-8255

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
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

Enrollment IDStateProvider typePAC IDDetails
I20251215000045 NY Practitioner - Psychiatry 9335633601 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Psychiatry
Education
Other, 2021
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

PO Box
New York, NY 10087

PO Box
Suite 24449
New York, NY 10087-0589

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
335406NYMDPsychiatry Physician
MD489201PAMDPsychiatry Physician

Practice roles

OrganizationSpecialtyStatusNew patients
MCCD Psychiatry Services PLLC Psychiatry CurrentSince Sep 22, 2025 Accepting new patients

Locations

109 W 27th St
#55
New York, NY 10001

109 W 27th St
Rm 5S
New York, NY 10001
Phone (332) 230-4572

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1616630400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761609600000",
    "number": "1346827300",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 24449",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100870589",
            "telephone_number": "833-351-8255"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "109 W 27TH ST RM 5S",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100016208",
            "telephone_number": "833-351-8255"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "680 American Ave",
            "address_purpose": "LOCATION",
            "city": "King Of Prussia",
            "state": "PA",
            "postal_code": "194064023",
            "country_code": "US",
            "telephone_number": "833-351-8255",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HSIEH",
        "first_name": "PETER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-25",
        "last_updated": "2025-10-28",
        "certification_date": "2025-10-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "PA",
            "license": "MD489201",
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "NY",
            "license": "335406",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.