NPPES file of Aug 9, 2026

Joshua B. Williamson, MD

Pediatrics Physician · Pottstown, PA

Joshua B. Williamson, MD is a pediatrics physician with a practice address in Pottstown, Pennsylvania, and NPI 1457395626, issued on Jun 16, 2006. Check the license (Pennsylvania MD429159, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457395626
Name
Joshua B. Williamson
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
MD429159 PA
Self-reported in NPPES; status is on the state search
Practice location
351 W Schuylkill RD Ste G-15A, Pottstown, PA 19465
Phone
(610) 326-9460
Enumerated
Jun 16, 2006
Record last updated
Jan 31, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 351 W Schuylkill RD Ste G-15A

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jaime Acevedo, RDHDental Hygienist1265089056
  2. Leeat Adlersberg, DPTPhysical Therapist1215364385
  3. Ilias Almakaev, MDInternal Medicine Physician1649238668
  4. Cesar Avila, DPTPhysical Therapist1659021749
  5. Deana Bittenbender, DHDental Hygienist1952027245
  6. Tania Bradkin, LCSWClinical Social Worker1053954636

Verify Joshua B. Williamson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD429159
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $15.91

1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joshua Williamson$15.91
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Joshua B. Williamson among 3,382 pediatrics physician records in Pennsylvania

Joshua B. Williamson, MD is one of 3,382 pediatrics physician records with a practice address in Pennsylvania. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 58% newer
  • In a Medicare fileYes · 25% of these records are
  • In the CMS Doctors and Clinicians fileNo · 7% of these records are
  • Record last updated2024 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in Pennsylvania

There are 3,382 pediatrics physician records in Pennsylvania.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Maria Conwell, MDPottstown, PA 194641306908918
  2. Philip Cook, MDPottstown, PA 194641326052416
  3. Dorota Kaminski, M.D.Pottstown, PA 194641962721092
  4. Claire Olstad, M.D.Pottstown, PA 194641386646735
  5. Ayushi Pathak, MDPottstown, PA 194641629719133
  6. Maryann Snyder, MDPottstown, PA 194641588843759
  7. Ashleigh Sobotka, D.O.Pottstown, PA 194641184164279
  8. Charlyce Wallington, M.D.Pottstown, PA 194641174687099

Common questions

What is Joshua B. Williamson, MD's NPI number?

Joshua B. Williamson, MD's National Provider Identifier (NPI) is 1457395626, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joshua B. Williamson, MD located?

The NPPES record lists a practice address at 351 W Schuylkill RD Ste G-15A, Pottstown, PA, 19465. Phone: (610) 326-9460. Providers update this record themselves, so call before visiting.

How can I verify Joshua B. Williamson, MD's license?

NPPES lists Pennsylvania license number MD429159, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.