Individual provider Active NPI

Zachariah Hamidi, MD

  • Hematology & Oncology Physician
  • Bethesda, MD
National Provider Identifier
1225623929
Registry record updated Jul 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
0101277220 Issued in VA
Practice address
4494 Palmer Rd N
Bethesda, MD 20814
Phone
(301) 295-4000
NPI assigned
Mar 4, 2021
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 23, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Physician 208D00000X 0101277220 VA
Hematology & Oncology Physician 207RH0003X 0101277220 VA Primary

Addresses

Primary practice location

4494 Palmer Rd N
Bethesda, MD 20814

Mailing address

4494 Palmer Rd N
Bethesda, MD 20814
Phone (301) 295-4000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in VA
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
I20221221000331 VA Order and Referring Only - Internal MedicinePractitioner - Internal Medicine 7012387715

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
0101277220VAMDGeneral Practice Physician

NPI Registry JSON

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

{
    "created_epoch": "1614816000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784764800000",
    "number": "1225623929",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4494 PALMER RD N",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "20814",
            "telephone_number": "301-295-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4494 PALMER RD N",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "20814",
            "telephone_number": "301-295-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAMIDI",
        "first_name": "ZACHARIAH",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-03-04",
        "last_updated": "2026-07-23",
        "certification_date": "2026-07-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "VA",
            "license": "0101277220",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "VA",
            "license": "0101277220",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bethesda, MD

Sources for this page

Verify at the official NPI Registry.