IndividualActiveAccepts Medicare

Isabelle Gengler, MD

NPI 1689134272 · Otolaryngology Physician · Allentown, PA

Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Provider details

NPI number: 1689134272
Entity type: Individual
Primary specialty: Otolaryngology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: D0099652 (MD)

Specialties & taxonomies

Otolaryngology PhysicianPrimary207Y00000XLicense MD492164 (PA)
Allopathic & Osteopathic Physicians
Otolaryngology Physician207Y00000XLicense D0099652 (MD)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(79/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure33% of score
7 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
3 documented practice locations
Open Payments transparency13% of score
Has Open Payments disclosures (2024)

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$329 across 6 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Practice location

1245 S Cedar Crest Blvd Ste 101

Allentown, PA 18103-6258

Phone: (484) 957-2770

Street-level locationGet directions

More PA providers

Mailing address

2100 Mack Blvd Fl 4

Allentown, PA 18103-5622

Additional practice locations (2)

600 N Wolfe St
Baltimore, MD 21264-2364
Phone: (410) 955-5080
234 Goodman St
Cincinnati, OH 45219-2364
Phone: (513) 558-4198
Fax: (513) 558-5203

Enumerated: 2019-03-21
Last updated: 2025-09-23
Certified: 2025-09-23

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.