NPIMap

Individual provider Active NPI

Patrick Callaghan, DO

  • Internal Medicine Physician
  • Allentown, PA
National Provider Identifier
1225563489
Registry record updated Aug 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
OS020685 Issued in PA
Practice address
1736 Hamilton St
Allentown, PA 18104-5656
Phone
(484) 526-6643
NPI assigned
Apr 25, 2017
Last updated
Aug 11, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 11, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X OS020685 PA Primary

Addresses

Primary practice location

1736 Hamilton St
Allentown, PA 18104-5656

Mailing address

1736 Hamilton St
Allentown, PA 18104-5656
Phone (484) 546-6643

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20200820000020 PA Practitioner - Internal Medicine 4082987383 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Philadelphia College of Osteopathic Medicine, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
St Lukes Physician Group IncGroup PAC ID 6709798333, 2,161 clinicians

Practice addresses (Care Compare)

830 Ostrum St
Fountain Hill, PA 18015-1013
Phone (610) 954-9005

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
97.13 of 100Reported as apm
Quality
82.27
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
OS020685PAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Gslpg, Inc CurrentSince Feb 12, 2024 Accepting new patients
St. Luke's Physician Group, Inc. CurrentSince Jul 1, 2020 Accepting new patients
St. Luke's Physician Group, Inc. Current Accepting new patients
St Luke's Physician Group Inc CurrentSince Jul 1, 2020 Accepting new patients
St. Luke's Physician Group, Inc. Past Accepting new patients
St Lukes Hospital Past Accepting new patients
St Luke's Hospital Past Accepting new patients
St. Luke's Hospital Past Accepting new patients

Locations

1736 Hamilton St
Allentown, PA 18104
Phone (610) 770-8300

801 Ostrum St
Fountain Hill, PA 18015
Phone (610) 954-2200

830 Ostrum St
Fountain Hill, PA 18015
Phone (484) 526-8142

100 Paramount Blvd
Orwigsburg, PA 17961
Phone (272) 639-1000

Interoperability endpoints

  • Direct secure messaging: patrick.callaghan@slpg.direct-sluhn.org

Organizations & group practices 8

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 8

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

NPI Registry JSON

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

{
    "created_epoch": "1493078400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754870400000",
    "number": "1225563489",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1736 HAMILTON ST",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181045656",
            "telephone_number": "484-546-6643"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1736 HAMILTON ST",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181045656",
            "telephone_number": "484-526-6643"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALLAGHAN",
        "first_name": "PATRICK",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-04-25",
        "last_updated": "2025-08-11",
        "certification_date": "2025-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "OS020685",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Allentown, PA

Sources for this page

Verify at the official NPI Registry.