1. Home
  2. Directory
  3. Pennsylvania
  4. Danville
  5. Pediatrics
  6. NPI Profile

DR. THOMAS D. CHALLMAN M.D.
NPI 1841265642
Pediatrics - Neurodevelopmental Disabilities in Danville, PA

Active since February 23, 2006PECOS EnrolledAccepts Medicare Assignment
100 N ACADEMY AVE, DANVILLE, PA 17822(570) 271-6440(570) 271-6002 Get Directions Write a Review

NPPES record last updated: August 10, 2020. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Thomas D. Challman M.d. NPPES

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

DR. THOMAS D. CHALLMAN M.D. (NPI 1841265642) is an individual neurodevelopmental disabilities provider in Danville, Pennsylvania, licensed in Pennsylvania (MD418738) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Georgetown University School Of Medicine (1991).

NPPES Registry Identity

NPI1841265642
Entity TypeIndividualMale
Primary Taxonomy2080P0008X
Provider Legal NameDR. THOMAS D. CHALLMANCredential: M.D.
Location Address100 N ACADEMY AVEDanville, PA 17822-1339
Mailing Address100 N Academy AveDanville, PA 17822-3034 · (570) 271-6144 · Fax (570) 271-6578
Phone(570) 271-6440
Fax(570) 271-6002
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 1991
Enumeration DateFebruary 23, 2006
Last NPPES UpdateAugust 10, 2020
NPPES CertifiedAugust 10, 2020
✔ NPI 1841265642 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neurodevelopmental DisabilitiesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0008X
License✔ Licensed in PA · MD418738
Definition
A pediatrician who specializes in the treatment of individuals with developmental delays and learning disorders associated with cerebral palsy, spina bifida, autism, and other chronic neurologic conditions.
100 N ACADEMY AVE, Danville, PA 17822
Open in Google Maps ↗

Other Identifiers 1

Medicaid001892708PA

Accepted Insurance

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

Dr. Thomas D. Challman M.d. 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 ID9335208503
PECOS Enrollment IDI20081103000124
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 Reassignment

Medicare enrollment records show Thomas Challman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Geisinger Clinic
Same address
Cardiovascular Disease
100 N ACADEMY AVE
Danville, PA 17822
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 4,429 clinicians in this Medicare group
NPI 1013968429 (570) 271-6211

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

Other Providers at the Same Location NPPES 20

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

DR. TARA JEAN LOUX MD
Surgery (Pediatric Surgery)
100 N ACADEMY AVE
DANVILLE, PA 17822
Montour County (570) 214-7967
MS. DENISE K HACKMAN RD, LDN
Dietitian, Registered
100 N ACADEMY AVE
DANVILLE, PA 17822
Montour County (570) 271-5332
DR. DANIEL CARROLL GEARY MD
Emergency Medicine
100 N ACADEMY AVE
DANVILLE, PA 17822
Montour County (570) 271-6212
MS. MONISA DEANNE WAGNER
Physician Assistant
100 N ACADEMY AVE
DANVILLE, PA 17822
Montour County (570) 271-7910
JESSICA LYNN CARNEY
Pediatrics
100 N ACADEMY AVE
DANVILLE, PA 17822
Montour County (570) 271-7910
CHRISTIE BUONPANE
Surgery (Pediatric Surgery)
100 N ACADEMY AVE
DANVILLE, PA 17822
Montour County (570) 271-6211
MAURA ELIZABETH GABLE D.O.
Pediatrics (Neonatal-Perinatal Medicine)
100 N ACADEMY AVE
DANVILLE, PA 17822
Montour County (570) 271-7910
ROSLYN MARIE FEASTER
Nurse Anesthetist, Certified Registered
100 N ACADEMY AVE
DANVILLE, PA 17822
Montour County (570) 271-6211

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 Thomas Challman's NPI number?

The NPI number for Thomas Challman is 1841265642. It was assigned to this individual provider in the NPPES registry on February 23, 2006.

Where is Thomas Challman located?

Thomas Challman practices at 100 N Academy Ave, Danville, PA 17822. The listed phone number is (570) 271-6440.

What is Thomas Challman's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neurodevelopmental Disabilities, with taxonomy code 2080P0008X.

Is Thomas Challman enrolled in Medicare?

Yes. Thomas Challman 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 organization bills Medicare for Thomas Challman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Challman reassigns Medicare benefits to Geisinger Clinic (Danville, PA). The 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 Thomas Challman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Challman accept?

Health plans from Ambetter Health and Ambetter from Buckeye Health Plan list Thomas Challman 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 Thomas Challman was last updated on August 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.