Physicians Practice and Research, LLC

Primary specialty

Nephrology PhysicianTaxonomy code 207RN0300X

License

0101234619 Issued in VA

Legal business name

PHYSICIANS PRACTICE AND RESEARCH, LLC

Practice address

19415 Deerfield Ave
Suite #107
Lansdowne, VA 20176-8452

Phone

(703) 723-5555

Fax

(703) 562-6996

NPI assigned

Apr 15, 2008

Organization subpart

No

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

Authorized official

Name

Oscar Adler, MDNPI 1700874138

Title

Owner

Phone

(703) 723-5555

Specialties & licenses 2

Addresses

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/AJDIDD

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Oscar Adler, M.D., PHD

  • Nephrology Physician
  • Leesburg, VA
  • NPI 1700874138
  NPD Authorized official
• Mandeep Sandhu, MD

  • Internal Medicine Physician
  • Lansdowne, VA
  • NPI 1205836798
  NPD (past)
• Karnail Singh, MD

  • Internal Medicine Physician
  • Lansdowne, VA
  • NPI 1871593202
  NPD (past)

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

{
    "created_epoch": "1208217600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1781654400000",
    "number": "1851565444",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9104 STREAMVIEW LN",
            "city": "VIENNA",
            "state": "VA",
            "postal_code": "221821728",
            "telephone_number": "703-723-5555",
            "fax_number": "703-391-5007"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19415 DEERFIELD AVE",
            "address_2": "SUITE #107",
            "city": "LANSDOWNE",
            "state": "VA",
            "postal_code": "201768452",
            "telephone_number": "703-723-5555",
            "fax_number": "703-562-6996"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PHYSICIANS PRACTICE AND RESEARCH, LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2008-04-15",
        "last_updated": "2026-06-17",
        "certification_date": "2026-06-17",
        "status": "A",
        "authorized_official_last_name": "ADLER",
        "authorized_official_first_name": "OSCAR",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "703-723-5555",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Internal Medicine, Nephrology",
            "state": "MD",
            "license": "D0063101",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Internal Medicine, Nephrology",
            "state": "VA",
            "license": "0101234619",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kristen Patrick
• Kathleen Waggoner Petty, LCSW, CSAC
• Anh Huu Pham, DDS
• Cameron Lee Phipps, D.P.M.
• Physical Medicine Associates LTD (National Spine & Pain Centers)
• Physicians' Ai Inc
• Helena Marshall Pittman, CCC-SLP
• Potomac Palliative Care Group
• Potomac Surgical Arts,PC (Potomac Surgical Arts)
• Michelle Poynter, PH.D.

• Nephrology Physician in Lansdowne, VA
• Providers in Lansdowne, VA by specialty
• Nephrology Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.