Glenn B. Mieszkalski
Radiation Oncology Physician · Harrisburg, PA
Glenn B. Mieszkalski is a radiation oncology physician with a practice address in Harrisburg, Pennsylvania, and NPI 1043325657, issued on Aug 21, 2006. Check the license (Pennsylvania MD049823L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Glenn B. Mieszkalski
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- MD049823L PA
Self-reported in NPPES; status is on the state search - Practice location
- 4300 Londonderry RD Lowr Level, Harrisburg, PA 17109
- Phone
- (717) 724-6740
- Enumerated
- Aug 21, 2006
- Record last updated
- Jan 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (717) 724-6741
- Medicaid ID
- 101107828 PA
- Medicare enrollment
- Enrolled (PECOS I20040921001010); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 383 in Pennsylvania → Look up another NPI →
Also registered at 4300 Londonderry RD Lowr Level
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abimbola Orisamolu, MDRadiation Oncology Physician1114337227
- David Weksberg, MDRadiation Oncology Physician1093947954
Verify Glenn B. Mieszkalski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD049823LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average radiation oncology physician in 2024
168 Medicare Part D claims for 57 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Tamsulosin Hcl104 claims
- Lidocaine Hcl Viscous15 claims
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.
Bills Medicare through 2 group practices
- Pinnacle Health Medical ServicesYork, PA
- The Centers For Advanced Urology LLPLancaster, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Glenn B. Mieszkalski among 383 radiation oncology physician records in Pennsylvania
Glenn B. Mieszkalski is one of 383 radiation oncology physician records with a practice address in Pennsylvania. 82% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 51% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1990 · median 2004 among the 285 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Pennsylvania
There are 383 radiation oncology physician records in Pennsylvania.
All 383 in Pennsylvania → Every provider in Harrisburg → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Najeeb Crossley, M.D.Harrisburg, PA 171091871988261
- Richard Ditlow, M.D.Harrisburg, PA 171091356335863
- Christopher HaskinsHarrisburg, PA 171091093249112
- Abimbola Orisamolu, MDHarrisburg, PA 171091114337227
- David Weksberg, MDHarrisburg, PA 171091093947954
- Ashraf Youssef, MDMechanicsburg, PA 170551821083064
- David Salinger, MDMechanicsburg, PA 170501861495996
- Ato Wright, MD/PHDMechanicsburg, PA 170501205137585
Common questions
What is Glenn B. Mieszkalski's NPI number?
Glenn B. Mieszkalski's National Provider Identifier (NPI) is 1043325657, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Glenn B. Mieszkalski located?
The NPPES record lists a practice address at 4300 Londonderry RD Lowr Level, Harrisburg, PA, 17109. Phone: (717) 724-6740. Providers update this record themselves, so call before visiting.
How can I verify Glenn B. Mieszkalski's license?
NPPES lists Pennsylvania license number MD049823L, 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 Glenn B. Mieszkalski prescribe under Medicare Part D?
In 2024, Glenn B. Mieszkalski had 168 Medicare Part D claims for 57 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.