Marcia R. Klein-Chast, D.O.
Pediatrics Physician · Langhorne, PA
Marcia R. Klein-Chast, D.O. is a pediatrics physician with a practice address in Langhorne, Pennsylvania, and NPI 1588682231, issued on Jul 18, 2006. Check the license (Pennsylvania OS009017L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Marcia R. Klein-Chast
- Credential
- D.O.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- OS009017L PA
Self-reported in NPPES; status is on the state search - Practice location
- 404 Middletown Blvd, Langhorne, PA 19047
- Phone
- (215) 269-3330
- Enumerated
- Jul 18, 2006
- Record last updated
- Jun 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (215) 269-3355
- Medicaid ID
- 0017143680002 PA
- Entity
- Type 1 · individual
Also registered at 404 Middletown Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Denice Barnes, M.D.Pediatric Adolescent Medicine Physician1679591325
- Vasanthi Haribabu, DDSGeneral Practice Dentistry1326208919
- Allison OstashPediatric Nurse Practitioner1184265951
- Allison Otto, M.D.Pediatrics Physician1376576140
Verify Marcia R. Klein-Chast in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS009017LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $350.91
16 payments; by number, the most common kind was food and beverage; the largest payer was Ironshore Pharmaceuticals 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Pediatrics Physician providers in Pennsylvania
There are 3,382 pediatrics physician records in Pennsylvania.
Other pediatrics physician records in Pennsylvania
- Arvin Abadilla, M.D.Hershey, PA1376761510
- Francisca Abanyie, MD MPHPhiladelphia, PA1487812335
- Hoda Abdel-Hamid, MDPittsburgh, PA1376582304
- Amir Abdel-Wahab, M.D.West Reading, PA1548499767
- Mohammed Abdu, MDWilkes Barre, PA1275856221
- Layla Abdulla, MDPhiladelphia, PA1538908363
- Thair Abed, MDPhiladelphia, PA1497743587
- Heather Abegglen, MDMonongahela, PA1598050569
- Margarita Abella, MDPhiladelphia, PA1609338300
- Lori Abels, D.O.York, PA1912164260
Common questions
What is Marcia R. Klein-Chast, D.O.'s NPI number?
Marcia R. Klein-Chast, D.O.'s National Provider Identifier (NPI) is 1588682231, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcia R. Klein-Chast, D.O. located?
The NPPES record lists a practice address at 404 Middletown Blvd, Langhorne, PA, 19047. Phone: (215) 269-3330. Providers update this record themselves, so call before visiting.
How can I verify Marcia R. Klein-Chast, D.O.'s license?
NPPES lists Pennsylvania license number OS009017L, 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.