MAIN LINE ALLERGY , L.L.P.
NPI 1437104460
Allergy & Immunology in Ardmore, PA

Active since May 25, 2006CLIA Certified · 3 labs
233 E LANCASTER AVE, SUITE 200, ARDMORE, PA 19003(610) 642-1643 Get Directions Write a Review

NPPES record last updated: May 20, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Main Line Allergy , L.l.p. NPPES

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

MAIN LINE ALLERGY , L.L.P. (NPI 1437104460) is a healthcare organization registered as an allergy & immunology in Ardmore, Pennsylvania and active in the NPI registry since May 2006. The organization holds 3 active CLIA laboratory certificates and lists Ruthven A. Wodell, Partner, as its authorized official.

NPPES Registry Identity

NPI1437104460
Entity TypeOrganization
Primary Taxonomy207K00000X
Legal Business NameMAIN LINE ALLERGY , L.L.P.
Location Address233 E LANCASTER AVE, SUITE 200Ardmore, PA 19003-2321
Mailing Address233 E Lancaster Ave, Suite 200Ardmore, PA 19003-2321 · (610) 642-1643
Organization SubpartNo
Authorized OfficialRuthven A. WodellPartner · (610) 642-1643
Enumeration DateMay 25, 2006
Last NPPES UpdateMay 20, 2013
✔ NPI 1437104460 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
233 E LANCASTER AVE, Ardmore, PA 19003

Other Identifiers 2

Medicare PIN194748PA
Other194748PA · Highmark Pin

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Main Line Allergy , L.l.p. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StatePennsylvaniaEnrollment IDO20040615000491Non-DME Part B · Clinic/Group PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Main Line Allergy , L.L.P., which bills Medicare for the services they deliver. Of these, 6 practice at this address. They are listed nearest first.

Clinicians, nearest first (6)

Allergy/Immunology
NPI 1639199912
233 E LANCASTER AVE STE 200
Ardmore, PA 19003
(215) 590-1000
✔ PECOSSame address
Allergy/Immunology
NPI 1336282870
233 E LANCASTER AVE SUITE 200
Ardmore, PA 19003
(610) 642-1643
✔ PECOS✔ Accepts MedicareSame address
Allergy/Immunology
NPI 1851667752
233 E LANCASTER AVE STE 200
Ardmore, PA 19003
(610) 642-1643
✔ PECOS✔ Accepts MedicareSame address
Allergy/Immunology
NPI 1740589993
233 E LANCASTER AVE STE 220
Ardmore, PA 19003
(610) 642-1643
✔ PECOS✔ Accepts MedicareSame address
Allergy/Immunology
NPI 1285680025
233 E LANCASTER AVE SUITE 200
Ardmore, PA 19003
(610) 642-1643
✔ PECOSSame address
Allergy/Immunology
NPI 1851349955
233 E LANCASTER AVE STE 200
Ardmore, PA 19003
(610) 642-1643
✔ PECOS✔ Accepts MedicareSame address

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

CLIA Laboratory Certificates CMS CLIA 3

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 39D2175469

Main Line Allergy · Ardmore, PA
Active · expires Nov 20, 2027
CLIA Number39D2175469
Laboratory TypePhysician Office
Certificate Effective DateNovember 21, 2025
Certificate Expiration DateNovember 20, 2027
Laboratory DirectorDr. Sharon K. Sweinberg
Laboratory Phone(610) 642-1643
Laboratory LocationMain Line Allergy233 E Lancaster Ave #200, Ardmore, PA 19003
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 39D2175470

Main Line Allergy · King Of Prussia, PA
Active · expires Nov 20, 2027
CLIA Number39D2175470
Laboratory TypePhysician Office
Certificate Effective DateNovember 21, 2025
Certificate Expiration DateNovember 20, 2027
Laboratory DirectorDr. Sharon K. Sweinberg
Laboratory Phone(610) 642-1643
Laboratory LocationMain Line Allergy491 Allendale Road, King Of Prussia, PA 19406
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 39D2175477

Main Line Allergy · Horsham, PA
Active · expires Nov 20, 2027
CLIA Number39D2175477
Laboratory TypePhysician Office
Certificate Effective DateNovember 21, 2025
Certificate Expiration DateNovember 20, 2027
Laboratory DirectorDr. Jack M. Becker
Laboratory Phone(610) 642-1643
Laboratory LocationMain Line Allergy301 Horsham Rd Suite H, Horsham, PA 19044
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Main Line Allergy , L.L.P.'s NPI number?

The NPI number for Main Line Allergy , L.L.P. is 1437104460. It was assigned to this organization in the NPPES registry on May 25, 2006.

Where is Main Line Allergy , L.L.P. located?

Main Line Allergy , L.L.P. is located at 233 E Lancaster Ave Suite 200, Ardmore, PA 19003. The listed phone number is (610) 642-1643.

What is Main Line Allergy , L.L.P.'s specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Main Line Allergy , L.L.P. enrolled in Medicare?

Yes. Main Line Allergy , L.L.P. is registered in the Medicare PECOS enrollment system.

When is Main Line Allergy , L.L.P.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Pennsylvania, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Main Line Allergy , L.L.P.?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians, all in Allergy/Immunology, reassign their Medicare billing to Main Line Allergy , L.L.P.. A 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 the clinician's services. Of these, 6 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Main Line Allergy , L.L.P. hold CLIA laboratory certificates?

Yes. 3 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Main Line Allergy , L.L.P. was last updated on May 20, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.