NPIMap

Individual provider Active NPI

William Karle Flatley, D.O.

  • Hospitalist Physician
  • Lewisburg, PA
National Provider Identifier
1790058683
Registry record updated Apr 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
OS017628 Issued in PA
Practice address
1 Hospital Dr
Lewisburg, PA 17837-9350
Phone
(570) 522-4264
Fax
(570) 768-3709
NPI assigned
Feb 22, 2012
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 2, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X OS017628 PA Primary
Emergency Medicine Physician 207P00000X OS017628 PA
Family Medicine Physician 207Q00000X OS017628 PA
Internal Medicine Physician 207R00000X OS017628 PA

Addresses

Primary practice location

1 Hospital Dr
Lewisburg, PA 17837-9350

Mailing address

601 Memory LN
York, PA 17402-2231
Phone (717) 851-1405

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
I20150609001992 PA Practitioner - HospitalistPractitioner - Internal Medicine 7416278981 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
Lake Erie College of Osteopathic Medicine, Erie, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Wellspan Medical GroupGroup PAC ID 1951213115, 2,438 clinicians

Practice addresses (Care Compare)

1 Hospital Dr
Lewisburg, PA 17837-9350
Phone (570) 522-4264

25 Monument Rd
York, PA 17403-5073

3 Hospital Dr
Lewisburg, PA 17837-9394

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
OS017628PAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Wellspan Medical Group CurrentSince Dec 1, 2025 Accepting new patients
Evangelical Medical Services Organization Family Medicine CurrentSince Mar 25, 2017 Accepting new patients
Evangelical Medical Services Organization CurrentSince Mar 25, 2017 Accepting new patients
Wellspan Medical Group CurrentSince Dec 1, 2025 Accepting new patients
Wellspan Medical Group Current Accepting new patients
Evangelical Medical Services Organization Internal Medicine Current Accepting new patients
Evangelical Community Hospital Past Accepting new patients

Locations

25 Lystra Rogers Dr
Lewisburg, PA 17837
Phone (570) 523-3290

7095 Westbranch Hwy
Ste 1000
Lewisburg, PA 17837
Phone (570) 523-3006

3 Hospital Dr
Ste 206
Lewisburg, PA 17837
Phone (570) 522-9771

1 Hospital Dr
Ste 306
Lewisburg, PA 17837
Phone (570) 522-4110

1 Hospital Dr
Lewisburg, PA 17837
Phone (570) 522-2000

3 Hospital Dr
Ste 318
Lewisburg, PA 17837
Phone (570) 522-1007

601 Memory Ln
York, PA 17402
Phone (717) 851-6670

1600 S George St
York, PA 17403
Phone (717) 848-3615

25 Monument Rd
Ste 270
York, PA 17403
Phone (717) 741-8250

Interoperability endpoints

  • Direct secure messaging: wflatley485097@wellspan.direct-ci.com

Organizations & group practices 7

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.

Hospital & facility affiliations 27

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

View all 27

NPI Registry JSON

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

{
    "created_epoch": "1329868800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775088000000",
    "number": "1790058683",
    "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": "1 HOSPITAL DR",
            "city": "LEWISBURG",
            "state": "PA",
            "postal_code": "178379350",
            "telephone_number": "570-522-4264",
            "fax_number": "570-768-3709"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FLATLEY",
        "first_name": "WILLIAM",
        "middle_name": "KARLE",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-02-22",
        "last_updated": "2026-04-02",
        "certification_date": "2026-04-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "PA",
            "license": "OS017628",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "PA",
            "license": "OS017628",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "PA",
            "license": "OS017628",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "OS017628",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lewisburg, PA

Sources for this page

Verify at the official NPI Registry.