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DR. ISABELLE MARIE GENGLER MD
NPI 1689134272
Otolaryngology in Allentown, PA

Active since March 21, 2019PECOS EnrolledAccepts Medicare Assignment
1245 S CEDAR CREST BLVD STE 101, ALLENTOWN, PA 18103(484) 957-2770 Get Directions Write a Review

NPPES record last updated: September 23, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 25, 2024, Mar 21, 2019 (2 updates tracked since 2019).

About Dr. Isabelle Marie Gengler Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ISABELLE MARIE GENGLER MD (NPI 1689134272) is an individual otolaryngology provider in Allentown, Pennsylvania, licensed in Pennsylvania (MD492164) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Lehigh Valley Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1689134272
Entity TypeIndividualFemale
Primary Taxonomy207Y00000X
Provider Legal NameDR. ISABELLE MARIE GENGLERCredential: MD
Location Address1245 S CEDAR CREST BLVD STE 101Allentown, PA 18103-6258
Mailing Address2100 Mack Blvd Fl 4Allentown, PA 18103-5622
Phone(484) 957-2770
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateMarch 21, 2019
Last NPPES UpdateSeptember 23, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 23, 2025
✔ NPI 1689134272 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
Licenses✔ Licensed in PA · MD492164✔ Licensed in MD · D0099652
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
1245 S CEDAR CREST BLVD STE 101, Allentown, PA 18103
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Secondary Practice Locations 2

Location 1234 Goodman StCincinnati, OH 45219-2364 · Phone (513) 558-4198 · Fax (513) 558-5203
Location 2600 N Wolfe StBaltimore, MD 21264-2364 · Phone (410) 955-5080

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Isabelle Marie Gengler Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214262500
PECOS Enrollment IDI20251013000746
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Lehigh Valley Hospital

Acute Care Hospitals · Allentown, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390133
Location1200 South Cedar Crest BoulevardAllentown, PA 18103 · Lehigh County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 18103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CAITLIN PATT PA-C
Physician Assistant (Medical)
1245 S CEDAR CREST BLVD STE 101
ALLENTOWN, PA 18103
Lehigh County (484) 957-2770
MONA KHALID AL RAMMAH MD
Otolaryngology (Otology & Neurotology)
1245 S CEDAR CREST BLVD STE 101
ALLENTOWN, PA 18103
Lehigh County (610) 366-1366
EDITH DONG AUD
Audiologist
1245 S CEDAR CREST BLVD STE 101
ALLENTOWN, PA 18103
Lehigh County (484) 957-2770
LAUREN BAYDA
Physician Assistant (Medical)
1245 S CEDAR CREST BLVD STE 101
ALLENTOWN, PA 18103
Lehigh County (484) 957-2770

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Isabelle Gengler's NPI number?

The NPI number for Isabelle Gengler is 1689134272. It was assigned to this individual provider in the NPPES registry on March 21, 2019.

Where is Isabelle Gengler located?

Isabelle Gengler practices at 1245 S Cedar Crest Blvd Ste 101, Allentown, PA 18103. The listed phone number is (484) 957-2770.

What is Isabelle Gengler's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Isabelle Gengler enrolled in Medicare?

Yes. Isabelle Gengler is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Isabelle Gengler affiliated with any hospitals?

According to CMS data, Isabelle Gengler is affiliated with Lehigh Valley Hospital.

When was this NPI record last updated?

The NPPES record for Isabelle Gengler was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.