Peter Joseph Prociuk, MD
Internal Medicine Physician · West Chester, PA
Peter Joseph Prociuk, MD is an internal medicine physician with a practice address in West Chester, Pennsylvania, and NPI 1891996708, issued on May 29, 2007. Check the license (Pennsylvania MD039488L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Peter Joseph Prociuk
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD039488L PA
Self-reported in NPPES; status is on the state search - Practice location
- 322 N High St, West Chester, PA 19380
- Phone
- (610) 701-5702
- Enumerated
- May 29, 2007
- Record last updated
- Jan 6, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (610) 701-4225
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Verify Peter Joseph Prociuk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD039488LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
41 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.
Peter Joseph Prociuk among 7,300 internal medicine physician records in Pennsylvania
Peter Joseph Prociuk, MD 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 2007, is newer than 36% of them.
- NPI issued2007 · 36% of these records are older, 57% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2016 · 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).
57 internal medicine physician records list a practice address in West Chester
They are 57 of the 2,831 NPPES records with a practice address in West Chester, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in West Chester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Douglas Atlas, MDWest Chester, PA 193801932168895
- Helise Bichefsky, DOWest Chester, PA 193801770533267
- Donald Emery, MDWest Chester, PA 193801730139130
- Renee Giometti, MDWest Chester, PA 193801639129208
- Dwight Johnson, DOWest Chester, PA 193801598738833
- Edward Ma, MDWest Chester, PA 193801730153081
- Martye Marshall, MDWest Chester, PA 193801841253648
- Richard Oyelewu, MDWest Chester, PA 193801659345601
Common questions
What is Peter Joseph Prociuk, MD's NPI number?
Peter Joseph Prociuk, MD's National Provider Identifier (NPI) is 1891996708, issued on May 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Peter Joseph Prociuk, MD located?
The NPPES record lists a practice address at 322 N High St, West Chester, PA, 19380. Phone: (610) 701-5702. Providers update this record themselves, so call before visiting.
How can I verify Peter Joseph Prociuk, MD's license?
NPPES lists Pennsylvania license number MD039488L, 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 Peter Joseph Prociuk, MD prescribe under Medicare Part D?
In 2024, Peter Joseph Prociuk, MD had 41 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.