MAIN LINE RADIATION ONCOLOGY PC
NPI 1962402172
Radiology - Radiation Oncology in Wynnewood, PA

Active since July 29, 2005CLIA 39D1032242 · Waiver
100 E LANCASTER AVE, WYNNEWOOD, PA 19096(610) 645-2433 Get Directions Write a Review

NPPES record last updated: March 21, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 21, 2025, Jul 21, 2022 (2 updates tracked since 2022).

About Main Line Radiation Oncology Pc NPPES

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

MAIN LINE RADIATION ONCOLOGY PC (NPI 1962402172) is a healthcare organization registered as a radiation oncology in Wynnewood, Pennsylvania and active in the NPI registry since July 2005. The organization holds a CLIA Waiver certificate valid through June 3, 2027 and lists Linna Li, Physician, as its authorized official.

NPPES Registry Identity

NPI1962402172
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NameMAIN LINE RADIATION ONCOLOGY PC
Location Address100 E LANCASTER AVEWynnewood, PA 19096-3450
Mailing AddressPo Box 825854Philadelphia, PA 19182-5854 · (903) 255-7373 · Fax (615) 807-3078
Organization SubpartNo
Authorized OfficialLinna LiPhysician · (484) 476-2433
Enumeration DateJuly 29, 2005
Last NPPES UpdateMarch 21, 20252 updates tracked since enumeration
NPPES CertifiedMarch 21, 2025
✔ NPI 1962402172 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
100 E LANCASTER AVE, Wynnewood, PA 19096

Other Identifiers 1

Medicaid0016753680001PA

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

Accepted Insurance

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 Radiation Oncology Pc 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 IDO20040804001299Non-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 Radiation Oncology PC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Radiation Oncology
NPI 1457351660
100 E LANCASTER AVE
Wynnewood, PA 19096
(610) 645-2433
✔ PECOS✔ Accepts MedicareSame address
Radiation Oncology
NPI 1306891338
130 S BRYN MAWR AVE
Bryn Mawr, PA 19010
(610) 526-8693
✔ PECOS✔ Accepts Medicare3.8 mi
Radiation Oncology
NPI 1568817435
500 EVERGREEN DR STE G1
Glen Mills, PA 19342
(610) 579-3600
✔ PECOS✔ Accepts Medicare7.4 mi
Radiation Oncology
NPI 1699929844
333 COTTMAN AVE
Philadelphia, PA 19111
(215) 728-2581
✔ PECOS✔ Accepts Medicare11 mi
Radiation Oncology
NPI 1467477299
255 W LANCASTER AVE
Paoli, PA 19301
(484) 565-1601
✔ PECOS13 mi
Radiation Oncology
NPI 1689660011
470 JOHN YOUNG WAY SUITE 400
Exton, PA 19341
(610) 524-5550
✔ PECOS✔ Accepts Medicare21 mi

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

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 39D1032242

Main Line Endocrinology · Wynnewood, PA
Active · expires Jun 3, 2027
CLIA Number39D1032242
Laboratory TypePhysician Office
Certificate Effective DateJune 4, 2025
Certificate Expiration DateJune 3, 2027
Laboratory DirectorDr. Rita J. El-Hajj
Laboratory Phone(610) 649-1922
Laboratory LocationMain Line Endocrinology100 E Lancaster Ave Mob East Suite 560, Wynnewood, PA 19096
CLIA data matches this NPI record on: Address
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 Radiation Oncology PC's NPI number?

The NPI number for Main Line Radiation Oncology PC is 1962402172. It was assigned to this organization in the NPPES registry on July 29, 2005.

Where is Main Line Radiation Oncology PC located?

Main Line Radiation Oncology PC is located at 100 E Lancaster Ave, Wynnewood, PA 19096. The listed phone number is (610) 645-2433.

What is Main Line Radiation Oncology PC's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Main Line Radiation Oncology PC enrolled in Medicare?

Yes. Main Line Radiation Oncology PC is registered in the Medicare PECOS enrollment system.

When is Main Line Radiation Oncology PC'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 Radiation Oncology PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians, all in Radiation Oncology, reassign their Medicare billing to Main Line Radiation Oncology PC. 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, 1 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Main Line Radiation Oncology PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 39D1032242) is associated with this NPI, valid through June 3, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Main Line Radiation Oncology PC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Main Line Radiation Oncology PC 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.

When was this NPI record last updated?

The NPPES record for Main Line Radiation Oncology PC was last updated on March 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.