Isabelle Marie Gengler, MD

Primary specialty

Otolaryngology PhysicianTaxonomy code 207Y00000X

License

MD492164 Issued in PA

Practice address

1245 S Cedar Crest Blvd Ste 101
Allentown, PA 18103-6258

Phone

(484) 957-2770

NPI assigned

Mar 21, 2019

Sex

Female

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 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

Otolaryngology

Education

Other, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lehigh Valley Physician GroupGroup PAC ID 3072425123, 2,512 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Merit-based Incentive Payment System (MIPS)

Final score

83.31 of 100Reported as group

Quality

73.89

Promoting interoperability

100

Improvement activities

40

Cost

70.47

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: igengler1793673@direct2.lvhn.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.

• Lehigh Valley Physician Group

  • Developmental - Behavioral Pediatrics Physician
  • Allentown, PA
  • NPI 1780155689
  Medicare reassignment Care Compare group
• Lehigh Valley Physician Group

  • Family Medicine Physician
  • Allentown, PA
  • NPI 1235228321
  NPD
• Lehigh Valley Physician Group

  • Family Medicine Physician
  • East Stroudsburg, PA
  • NPI 1245093368
  NPD
• Lehigh Valley Physician Group

  • Transplant Surgery Physician
  • Allentown, PA
  • NPI 1457309650
  NPD

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

• Lehigh Valley Hospital

  • General Acute Care Hospital
  • Allentown, PA
  • NPI 1164400131
  Care Compare affiliation
• Lehigh Valley Hospital

  • Clinic/Center
  • Allentown, PA
  • NPI 1194673467

  Hospital

  Care Compare affiliation
• Lehigh Valley Hospital

  • Clinic/Center
  • Allentown, PA
  • NPI 1528627155

  Hospital

  Care Compare affiliation
• Lehigh Valley Hospital

  • Psychiatric Hospital Unit
  • Bethlehem, PA
  • NPI 1609834001
  Care Compare affiliation
• Lehigh Valley Hospital

  • Children's Hospital
  • Allentown, PA
  • NPI 1952954307
  Care Compare affiliation

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

{
    "created_epoch": "1553126400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758585600000",
    "number": "1689134272",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 MACK BLVD FL 4",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181035622"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1245 S CEDAR CREST BLVD STE 101",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181036258",
            "telephone_number": "484-957-2770"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "234 Goodman St",
            "address_purpose": "LOCATION",
            "city": "Cincinnati",
            "state": "OH",
            "postal_code": "452192364",
            "country_code": "US",
            "telephone_number": "513-558-4198",
            "fax_number": "513-558-5203",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 N Wolfe St",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212642364",
            "country_code": "US",
            "telephone_number": "410-955-5080",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GENGLER",
        "first_name": "ISABELLE",
        "middle_name": "MARIE",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-21",
        "last_updated": "2025-09-23",
        "certification_date": "2025-09-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "MD",
            "license": "D0099652",
            "primary": false
        },
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "PA",
            "license": "MD492164",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ethan C Gelting
• General Surgical Associates, LTD.
• Generation of Change LLC
• Genesis Medical Transport
• Beverley J Genetti, RNFA
• Cassandra Rose Genovese, PA-C
• Alexis Nicole Gentile, COTA/L
• Gentle Dental Allentown LLC
• George a. Arangio MD PC
• George Manja LLC

• Otolaryngology Physician in Allentown, PA
• Providers in Allentown, PA by specialty
• Otolaryngology Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 23, 2025; 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.