Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Seth Zwillenberg, MD

Otolaryngology Physician in Philadelphia, PA · enumerated 2006 · practices at Associated Audiologic Consultants,Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1952372906

Verified

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Registry record

Entity type Individual (Type 1)

Name Seth Zwillenberg

Credential MD

Sex Male

Practice address 1920 Chestnut St, 2nd Floor, Philadelphia, PA, 19103

Phone (215) 561-2546

Fax (215) 568-8177

Enumeration date Jan 29, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License MD027425 (PA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
001092651002	Medicaid	PA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Seth Zwillenberg?

The National Provider Identifier (NPI) for Seth Zwillenberg is 1952372906, a Type 1 (individual) record in the CMS NPPES registry.

Where does Seth Zwillenberg practice?

The practice location on file with NPPES is in Philadelphia, PA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.