Catherine Josephine Pelczar-Wissner, M. D.
Internal Medicine Physician · Bryn Mawr, PA
Catherine Josephine Pelczar-Wissner, M. D. is an internal medicine physician with a practice address in Bryn Mawr, Pennsylvania, and NPI 1669609343, issued on Jun 19, 2009. Check the license (Pennsylvania MD474176, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Catherine Josephine Pelczar-Wissner
- Credential
- M. D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD474176 PA
Self-reported in NPPES; status is on the state search - Practice location
- 48 Brennan Dr, Bryn Mawr, PA 19010
- Phone
- (914) 450-6755
- Enumerated
- Jun 19, 2009
- Record last updated
- Dec 5, 2023
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Verify Catherine Josephine Pelczar-Wissner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD474176Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
63 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Catherine Josephine Pelczar-Wissner among 7,300 internal medicine physician records in Pennsylvania
Catherine Josephine Pelczar-Wissner, M. D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 47% of them.
- NPI issued2009 · 47% of these records are older, 50% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 internal medicine physician records list a practice address in Bryn Mawr
They are 49 of the 1,496 NPPES records with a practice address in Bryn Mawr, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Bryn Mawr → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bonnie Ashby, MDBryn Mawr, PA 190101659350130
- Nahed Botros, DOBryn Mawr, PA 190101770556615
- Richard Brower, M.D.Bryn Mawr, PA 190101558331769
- Matthew Cahill, MDBryn Mawr, PA 190101528031325
- Madeline Danny, D.OBryn Mawr, PA 190101659311892
- Shalini Harigovind, MDBryn Mawr, PA 190101790759306
- Sivasankara Kosaraju, MDBryn Mawr, PA 190101558335919
- Lawrence McKnight, MDBryn Mawr, PA 190101013981166
Common questions
What is Catherine Josephine Pelczar-Wissner, M. D.'s NPI number?
Catherine Josephine Pelczar-Wissner, M. D.'s National Provider Identifier (NPI) is 1669609343, issued on Jun 19, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Josephine Pelczar-Wissner, M. D. located?
The NPPES record lists a practice address at 48 Brennan Dr, Bryn Mawr, PA, 19010. Phone: (914) 450-6755. Providers update this record themselves, so call before visiting.
How can I verify Catherine Josephine Pelczar-Wissner, M. D.'s license?
NPPES lists Pennsylvania license number MD474176, 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.
How much does Catherine Josephine Pelczar-Wissner, M. D. prescribe under Medicare Part D?
In 2024, Catherine Josephine Pelczar-Wissner, M. D. had 63 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.