NPIMap

Individual provider Active NPI

Ian Joel Diehl, PA-C

  • Medical Physician Assistant
  • Bethlehem, PA
National Provider Identifier
1821634585
Registry record updated Mar 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Physician AssistantTaxonomy code 363AM0700X
License
MA063965 Issued in PA
Practice address
1490 8TH Ave Ste 220
Bethlehem, PA 18018-2212
Phone
(610) 402-9116
NPI assigned
Nov 18, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 6, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Physician Assistant 363AM0700X MA063965 PA Primary
Physical Therapist 225100000X PT027578 PA

Addresses

Primary practice location

1490 8TH Ave Ste 220
Bethlehem, PA 18018-2212

Mailing address

1581 N 9TH St
Stroudsburg, PA 18360-7531
Phone (272) 212-0620

Other practice location 1

1581 N 9th St
Stroudsburg, PA 18360-7531
Phone (272) 212-0620

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
I20221216000692 PA Practitioner - Physician Assistant 0446629257 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Lehigh Valley Physician GroupGroup PAC ID 3072425123, 2,512 clinicians
St Lukes Physician Group IncGroup PAC ID 6709798333, 2,161 clinicians

Practice addresses (Care Compare)

1569 Medical Dr
Suite 202
Pottstown, PA 19464-3223
Phone (484) 948-3860

1581 N 9TH St
Stroudsburg, PA 18360-7576
Phone (272) 212-0620

801 Ostrm St
Bethlehem, PA 18015-1000

Hospital & facility affiliations

  • Lehigh Valley Hospital Hospital, Allentown, PA, CCN 390133

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PT027578PAMDPhysical Therapist
MA063965PAMDMedical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
St Luke'S Physician Group Inc CurrentSince Jan 6, 2025 Accepting new patients
St. Luke'S Physician Group, Inc CurrentSince Jan 6, 2025 Accepting new patients
Lehigh Valley Physician Group CurrentSince Dec 5, 2022 Accepting new patients
Lehigh Valley Physician Group CurrentSince Dec 5, 2022 Accepting new patients
Pulmonary Associates PC Past Accepting new patients
St. Luke'S Physician Group, Inc Past Accepting new patients

Locations

1250 S Cedar Crest Blvd
Ste 400
Allentown, PA 18103
Phone (610) 402-3650

153 Brodhead Rd
Bethlehem, PA 18017
Phone (484) 526-3200

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

5649 Wynnewood Dr
Ste 104
Laurys Station, PA 18059
Phone (610) 262-6641

1569 Medical Dr
Ste 202
Pottstown, PA 19464
Phone (484) 945-0075

1581 N 9th St
Stroudsburg, PA 18360
Phone (272) 212-4490

Interoperability endpoints

  • Direct secure messaging: idiehl209983@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 and National Provider Directory roles.

Hospital & facility affiliations 5

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": "1574035200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772755200000",
    "number": "1821634585",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1581 N 9TH ST",
            "city": "STROUDSBURG",
            "state": "PA",
            "postal_code": "183607531",
            "telephone_number": "272-212-0620"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1490 8TH AVE STE 220",
            "city": "BETHLEHEM",
            "state": "PA",
            "postal_code": "180182212",
            "telephone_number": "610-402-9116"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1581 N 9th St",
            "address_purpose": "LOCATION",
            "city": "Stroudsburg",
            "state": "PA",
            "postal_code": "183607531",
            "country_code": "US",
            "telephone_number": "272-212-0620",
            "fax_number": "833-485-0134",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIEHL",
        "first_name": "IAN",
        "middle_name": "JOEL",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-11-18",
        "last_updated": "2026-03-06",
        "certification_date": "2026-03-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "PA",
            "license": "MA063965",
            "primary": true
        },
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "PA",
            "license": "PT027578",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bethlehem, PA

Sources for this page

Verify at the official NPI Registry.