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SETH ZWILLENBERG MD
NPI 1952372906
Otolaryngology in Philadelphia, PA

Active since January 29, 2006PECOS EnrolledAccepts Medicare Assignment
1920 CHESTNUT ST, 2ND FLOOR, PHILADELPHIA, PA 19103(215) 561-2546(215) 568-8177 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Seth Zwillenberg Md NPPES

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

SETH ZWILLENBERG MD (NPI 1952372906) is an individual otolaryngology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD027425) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Albert Einstein Medical Center, and is a graduate of Other (1981).

NPPES Registry Identity

NPI1952372906
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameSETH ZWILLENBERGCredential: MD
Location Address1920 CHESTNUT ST, 2ND FLOORPhiladelphia, PA 19103-4634
Mailing Address1920 Chestnut St, 2nd FloorPhiladelphia, PA 19103-4634 · (215) 561-2546 · Fax (215) 568-8177
Phone(215) 561-2546
Fax(215) 568-8177
Sole ProprietorNo
Medical School CMSOtherGraduated 1981
Enumeration DateJanuary 29, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1952372906 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in PA · MD027425
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.
1920 CHESTNUT ST, Philadelphia, PA 19103
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Other Identifiers 1

Medicaid001092651002PA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Seth Zwillenberg 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 ID5597667022
PECOS Enrollment IDI20101102001245
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Seth Zwillenberg reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Stc Pediatrics LLC
0.5 mi
Thoracic Surgery (Cardiothoracic Vascular Surgery)
230 N BROAD ST
Philadelphia, PA 19102
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 479 clinicians in this Medicare group
NPI 1437793833 (610) 743-6049
University Otolaryngology Associates PC
0.5 mi
Otolaryngology
205 N BROAD ST, SUITE 401
Philadelphia, PA 19107
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 14 clinicians in this Medicare group
NPI 1457315715 (215) 762-4600
Fornance Physician Services, Inc
11 mi
Family Medicine
612 FAYETTE ST, 2ND FLOOR
Conshohocken, PA 19428
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 192 clinicians in this Medicare group
NPI 1437104296 (610) 828-8500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Diagnostic exam of nasal passages using an endoscope 31231
A diagnostic exam of nasal passages using an endoscope is a non-invasive procedure. A small, flexible tube with a light and camera at the end, called an endoscope, is inserted into the nose. This allows the doctor to view the nasal passages and sinuses, helping to identify any issues.
53 services42 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
53 services44 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
36 services26 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
34 services34 patients
Diagnostic exam of voice box using a flexible endoscope 31575
This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.
32 services26 patients
Removal of impacted ear wax 69210
Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.
32 services28 patients

Hospital Affiliations CMS Care Compare

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

Albert Einstein Medical Center

Acute Care Hospitals · Philadelphia, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390142
Location5501 Old York RoadPhiladelphia, PA 19141 · Philadelphia County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19103 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
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$38.38 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 8

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

CHANDLER BALLBACH
Social Worker (Clinical)
1920 CHESTNUT ST
PHILADELPHIA, PA 19103
Philadelphia County (612) 968-0660
MS. ELENA BALLEZZI MA CCC-A
Audiologist-Hearing Aid Fitter
1920 CHESTNUT ST
PHILADELPHIA, PA 19103
Philadelphia County (215) 561-0550
ELIZABETH SOOF CAPALDI AU.D.
Audiologist
1920 CHESTNUT ST
PHILADELPHIA, PA 19103
Philadelphia County (215) 561-1234
ASSOCIATED AUDIOLOGIC CONSULTANTS,INC
Audiologist-Hearing Aid Fitter
1920 CHESTNUT ST, SUITE 200
PHILADELPHIA, PA 19103
Philadelphia County (215) 561-0550
JUNG HWAN LEE AU.D
Audiologist-Hearing Aid Fitter
1920 CHESTNUT ST, SUITE 200
PHILADELPHIA, PA 19103
Philadelphia County (215) 561-0550
MRS. GINA R GIORDANO MS CCC-A
Audiologist
1920 CHESTNUT ST, 200
PHILADELPHIA, PA 19103
Philadelphia County (215) 561-0550
REBECCA A. GERMANO AU.D.
Audiologist
1920 CHESTNUT ST, SUITE 200
PHILADELPHIA, PA 19103
Philadelphia County (215) 561-0550
MR. EDWARD W. KEELS M.A. CCC-A, FAAA
Audiologist
1920 CHESTNUT ST, SUITE 200
PHILADELPHIA, PA 19103
Philadelphia County (215) 561-0550

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 Seth Zwillenberg's NPI number?

The NPI number for Seth Zwillenberg is 1952372906. It was assigned to this individual provider in the NPPES registry on January 29, 2006.

Where is Seth Zwillenberg located?

Seth Zwillenberg practices at 1920 Chestnut St 2nd Floor, Philadelphia, PA 19103. The listed phone number is (215) 561-2546.

What is Seth Zwillenberg's specialty?

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

Is Seth Zwillenberg enrolled in Medicare?

Yes. Seth Zwillenberg 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.

Which organizations bill Medicare for Seth Zwillenberg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seth Zwillenberg reassigns Medicare benefits to 3 organizations: Stc Pediatrics LLC (Philadelphia, PA), University Otolaryngology Associates PC (Philadelphia, PA) and Fornance Physician Services, Inc (Conshohocken, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Seth Zwillenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Seth Zwillenberg accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Seth Zwillenberg as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Seth Zwillenberg affiliated with any hospitals?

According to CMS data, Seth Zwillenberg is affiliated with Albert Einstein Medical Center.

When was this NPI record last updated?

The NPPES record for Seth Zwillenberg was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.