Mark H Johnston, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

MD425522 Issued in PA

Practice address

2112 Harrisburg Pike
Suite 202
Lancaster, PA 17601-2644

Phone

(717) 544-3500

Fax

(717) 544-3501

NPI assigned

Nov 15, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 5

Medicare fee-for-service enrollment

Enrolled in PA

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

Gastroenterology

Education

Hahnemann University College of Medicine, 1985

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regional Gastroenterology Associates of Lancaster, LTD.Group PAC ID 4688575434, 248 clinicians

Lancaster General HospitalGroup PAC ID 1254240039, 520 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Lancaster General Hospital Hospital, Lancaster, PA, CCN 390100

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

• OH PPO
• devoted network organization-9f3dfbd3-4aa6-4c92-8e71-9c4ed35ce037
• devoted network organization-8ee96498-f86e-45f6-9fc9-a0f06c1636f9
• devoted network organization-598bd2d4-c652-473f-ba7a-132f674c8eb6
• devoted network organization-2d523d8e-e8f9-454a-bcd3-333df65bdbe8

Interoperability endpoints

• Direct secure messaging: mjohnston11809@direct-lghealth.org

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.

• Lancaster General Hospital

  • Hospitalist Physician
  • Lancaster, PA
  • NPI 1487904769
  Medicare reassignment Care Compare group NPD
• Regional Gastroenterology Associates of Lancaster, LTD.

  • Gastroenterology Physician
  • Lancaster, PA
  • NPI 1154422806
  Medicare reassignment Care Compare group NPD
• Lancaster General Hospital

  • Gastroenterology Physician
  • Lancaster, PA
  • NPI 1205691912
  NPD
• Midatlantic Endoscopy LLC

  • Ambulatory Surgical Clinic/Center
  • Lancaster, PA
  • NPI 1255872784
  NPD
• Regional Gastroenterology Associates of Lancaster, LTD.

  • Ambulatory Surgical Clinic/Center
  • Lancaster, PA
  • NPI 1295819084
  NPD

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

• Lancaster General Hospital

  • General Acute Care Hospital
  • Lancaster, PA
  • NPI 1104875103
  Care Compare affiliation
• Lancaster General Hospital

  • General Acute Care Hospital
  • Parkesburg, PA
  • NPI 1245571942
  Care Compare affiliation
• Lancaster General Hospital

  • Ambulatory Surgical Clinic/Center
  • Lancaster, PA
  • NPI 1538290424

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1132012800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1560384000000",
    "number": "1003898131",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2112 HARRISBURG PIKE STE 202",
            "city": "LANCASTER",
            "state": "PA",
            "postal_code": "176012644",
            "telephone_number": "717-869-4600",
            "fax_number": "717-544-3501"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2112 HARRISBURG PIKE",
            "address_2": "SUITE 202",
            "city": "LANCASTER",
            "state": "PA",
            "postal_code": "176012644",
            "telephone_number": "717-544-3500",
            "fax_number": "717-544-3501"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOHNSTON",
        "first_name": "MARK",
        "middle_name": "H",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-15",
        "last_updated": "2019-06-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "PA",
            "license": "MD425522",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "093677KKU",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDICARE",
            "identifier": "P01832235",
            "state": "PA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1012082120002",
            "state": "PA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1012082120004",
            "state": "PA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1012082120005",
            "state": "PA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Savannah Johnson, LPN
• Stacie Johnson, RPH
• Timothy Johnson, DO
• Carol A Johnston
• Lavonne Rose Johnston, PA-C
• Staci Johnston, CRNP
• Tyler Johnston, MD
• Jonathan M. Gransee PSYD and Associates PC
• Jonathan M. Gransee, Psy.D, & Associates, PC
• Alexandra Dora Jones, MSW

• Gastroenterology Physician in Lancaster, PA
• Providers in Lancaster, PA by specialty
• Gastroenterology Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 13, 2019; 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.