Sean Anthony Isaac Jr., MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

MD479390 Issued in PA

Practice address

4940 Eastern Ave
Baltimore, MD 21224-2735

Phone

(410) 550-0100

NPI assigned

Aug 9, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MD, DC, PA3 enrollments

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 3

Specialty

Anesthesiology

Education

New York Medical College, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Wellspan Medical GroupGroup PAC ID 1951213115, 2,438 clinicians

Upmc Pinnacle Anesthesia Services LLCGroup PAC ID 1951662980, 252 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Wellspan York Hospital Hospital, York, PA, CCN 390046
• Upmc Pinnacle Hospitals Hospital, Harrisburg, PA, CCN 390067
• Gettysburg Hospital Hospital, Gettysburg, PA, CCN 390065

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations (25 of 26)

Interoperability endpoints

• Direct secure messaging: sisaac531318@wellspan.direct-ci.com

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.

• Upmc Pinnacle Anesthesia Services, LLC

  • Anesthesiology Physician
  • Harrisburg, PA
  • NPI 1730693979
  Medicare reassignment Care Compare group NPD
• Wellspan Medical Group

  • Gastroenterology Physician
  • York, PA
  • NPI 1669770004
  Medicare reassignment Care Compare group NPD
• First Colonies Anesthesia Associates, LLC

  • Anesthesiology Physician
  • Columbia, MD
  • NPI 1740218767

  DC

  Medicare reassignment NPD
• University of Maryland St. Joseph Medical Group, LLC

  • General Practice Physician
  • Towson, MD
  • NPI 1770836785
  Medicare reassignment NPD
• Geisinger Clinic

  • Family Medicine Physician
  • Danville, PA
  • NPI 1366493868
  Medicare reassignment NPD
• Geisinger-HM Joint Venture, LLC

  • Family Medicine Physician
  • Lock Haven, PA
  • NPI 1144876137
  Medicare reassignment NPD
• The Gettysburg Hospital

  • Emergency Medicine Physician
  • Gettysburg, PA
  • NPI 1366472706

  Anesthesiology

  Medicare reassignment NPD
• University of Maryland St. Joseph Medical Group, LLC

  • Surgical Assistant
  • Towson, MD
  • NPI 1053816074
  NPD
• Geisinger Clinic

  • Family Medicine Physician
  • Scranton, PA
  • NPI 1225445612
  NPD
• Geisinger Clinic

  • Diagnostic Radiology Physician
  • Danville, PA
  • NPI 1558313023
  NPD
• Geisinger-HM Joint Venture LLC

  • Internal Medicine Physician
  • Muncy, PA
  • NPI 1952076119

  Anesthesiology

  NPD
• Geisinger-HM Joint Venture, LLC

  • Family Medicine Physician
  • Williamsport, PA
  • NPI 1073075909
  NPD

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

• The Gettysburg Hospital

  • Ambulatory Surgical Clinic/Center
  • Gettysburg, PA
  • NPI 1184882011

  Hospital

  Care Compare affiliation
• The Gettysburg Hospital

  • General Acute Care Hospital
  • Gettysburg, PA
  • NPI 1265466957
  Care Compare affiliation
• Upmc Pinnacle Hospitals

  • Ambulatory Surgical Clinic/Center
  • Harrisburg, PA
  • NPI 1164526588

  Hospital

  Care Compare affiliation
• Upmc Pinnacle Hospitals

  • General Acute Care Hospital
  • Harrisburg, PA
  • NPI 1265537674
  Care Compare affiliation
• Upmc Pinnacle Hospitals

  • Ambulatory Surgical Clinic/Center
  • Harrisburg, PA
  • NPI 1346344769

  Hospital

  Care Compare affiliation
• Upmc Pinnacle Hospitals

  • General Acute Care Hospital
  • Harrisburg, PA
  • NPI 1407813603
  Care Compare affiliation
• Upmc Pinnacle Hospitals

  • Ambulatory Surgical Clinic/Center
  • Harrisburg, PA
  • NPI 1528940962

  Hospital

  Care Compare affiliation
• Upmc Pinnacle Hospitals

  • Ambulatory Surgical Clinic/Center
  • Mechanicsburg, PA
  • NPI 1922425651

  Hospital

  Care Compare affiliation
• Upmc Pinnacle Hospitals

  • General Acute Care Hospital
  • Mechanicsburg, PA
  • NPI 1972613305
  Care Compare affiliation
• York Hospital

  • General Acute Care Hospital
  • York, PA
  • NPI 1326060492
  Care Compare affiliation
• York Hospital

  • Clinic/Center
  • York, PA
  • NPI 1497814040

  Hospital

  Care Compare affiliation
• York Hospital

  • Clinic/Center
  • York, PA
  • NPI 1609112036

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1186617600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768348800000",
    "number": "1386835767",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "601 MEMORY LN",
            "city": "YORK",
            "state": "PA",
            "postal_code": "174022231",
            "telephone_number": "717-851-1405",
            "fax_number": "717-851-6969"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4940 EASTERN AVE",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212242735",
            "telephone_number": "410-550-0100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "90 Medical Park Dr Ste 2000",
            "address_purpose": "LOCATION",
            "city": "Lewisburg",
            "state": "PA",
            "postal_code": "178376343",
            "country_code": "US",
            "telephone_number": "570-524-2722",
            "fax_number": "570-524-0362",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Hospital Dr",
            "address_purpose": "LOCATION",
            "city": "Lewisburg",
            "state": "PA",
            "postal_code": "178379350",
            "country_code": "US",
            "telephone_number": "570-522-2000",
            "fax_number": "570-768-3911",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "25 Monument Rd Ste 270",
            "address_purpose": "LOCATION",
            "city": "York",
            "state": "PA",
            "postal_code": "174035073",
            "country_code": "US",
            "telephone_number": "717-741-8250",
            "fax_number": "717-741-8289",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "835 5th Ave",
            "address_purpose": "LOCATION",
            "city": "Chambersburg",
            "state": "PA",
            "postal_code": "172014220",
            "country_code": "US",
            "telephone_number": "717-217-4312",
            "fax_number": "717-217-4314",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "55 Monument Rd",
            "address_purpose": "LOCATION",
            "city": "York",
            "state": "PA",
            "postal_code": "174035023",
            "country_code": "US",
            "telephone_number": "717-812-6425",
            "fax_number": "717-851-5250",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "112 N 7th St",
            "address_purpose": "LOCATION",
            "city": "Chambersburg",
            "state": "PA",
            "postal_code": "172011720",
            "country_code": "US",
            "telephone_number": "717-267-7164",
            "fax_number": "717-267-7414",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "147 Gettys St",
            "address_purpose": "LOCATION",
            "city": "Gettysburg",
            "state": "PA",
            "postal_code": "173252534",
            "country_code": "US",
            "telephone_number": "717-337-4168",
            "fax_number": "717-337-4318",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "501 E Main St",
            "address_purpose": "LOCATION",
            "city": "Waynesboro",
            "state": "PA",
            "postal_code": "172682353",
            "country_code": "US",
            "telephone_number": "717-765-3425",
            "fax_number": "717-765-3478",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "12 St Paul Dr Ste 100",
            "address_purpose": "LOCATION",
            "city": "Chambersburg",
            "state": "PA",
            "postal_code": "172011035",
            "country_code": "US",
            "telephone_number": "717-217-6072",
            "fax_number": "717-217-6952",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "35 Erick Rd",
            "address_purpose": "LOCATION",
            "city": "Lancaster",
            "state": "PA",
            "postal_code": "176013111",
            "country_code": "US",
            "telephone_number": "717-690-0811",
            "fax_number": "717-283-4193",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1001 S George St",
            "address_purpose": "LOCATION",
            "city": "York",
            "state": "PA",
            "postal_code": "174033676",
            "country_code": "US",
            "telephone_number": "717-812-7687",
            "fax_number": "717-851-5250",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1227 Baltimore St",
            "address_purpose": "LOCATION",
            "city": "Hanover",
            "state": "PA",
            "postal_code": "173314406",
            "country_code": "US",
            "telephone_number": "717-646-4204",
            "fax_number": "717-646-4205",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "252 S 4th St",
            "address_purpose": "LOCATION",
            "city": "Lebanon",
            "state": "PA",
            "postal_code": "170426111",
            "country_code": "US",
            "telephone_number": "717-270-7500",
            "fax_number": "717-228-1642",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "169 Martin Aveunue",
            "address_purpose": "LOCATION",
            "city": "Ephrata",
            "state": "PA",
            "postal_code": "175221734",
            "country_code": "US",
            "telephone_number": "717-733-0311",
            "fax_number": "717-721-5861",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ISAAC",
        "first_name": "SEAN",
        "middle_name": "ANTHONY",
        "name_suffix": "Jr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-08-09",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "PA",
            "license": "MD479390",
            "primary": true
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MD",
            "license": "D66135",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Andrea Isaac
• Chandra Isaac, M.S., ADT
• Elizabeth Isaac, M.AC.; L.AC.; ADS
• Estherlyn Isaac
• Nisha Isaac, M.S., C.G.C.
• Alexandra Eva Isaacs, MS
• Krista Isaacs, M.D.
• Robert D Isaacs, DDS
• Pedro Henrique Isaacsson Velho, MD
• Marie Michelle Isac, MD

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 14, 2026; 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.