John Holland Sadler, M.D.

Primary specialty

Nephrology PhysicianTaxonomy code 207RN0300X

License

D14336 Issued in MD

Practice address

840 Hollins St
Baltimore, MD 21201-1024

Phone

(410) 468-0900

Fax

(410) 468-0911

NPI assigned

Jan 31, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

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.

• Frederick Health Hospital Inc

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)
• Independent Dialysis Foundation, Inc

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Baltimore, MD
  • NPI 1033127881
  NPD (past)

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

{
    "created_epoch": "1138665600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1286236800000",
    "number": "1235100850",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "840 HOLLINS ST",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212011024",
            "telephone_number": "410-468-0900",
            "fax_number": "410-468-0911"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "840 HOLLINS ST",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212011024",
            "telephone_number": "410-468-0900",
            "fax_number": "410-468-0911"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SADLER",
        "first_name": "JOHN",
        "middle_name": "HOLLAND",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-01-31",
        "last_updated": "2010-10-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "MD",
            "license": "D14336",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE",
            "identifier": "D14336",
            "state": "MD"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "MA-15001-1200",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Adeola O. Sadik, MD
• Eliot Sadik, MD
• Nabila Sadiq, PHARM D
• Tashfiya Sadique, PA-C
• Craig Alan Sadler, M.D.
• Lorin Sadler
• Morgan Sadler
• Robert H Sadowski, MD
• Amina Sadowsky, LGSW
• Cristina L Sadowsky, MD

• Nephrology Physician in Baltimore, MD
• Providers in Baltimore, MD by specialty
• Nephrology Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 5, 2010; 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.