Margaret M. Fitzsimons, MB.B
Nephrology Physician · Hershey, PA
Margaret M. Fitzsimons, MB.B is a nephrology physician with a practice address in Hershey, Pennsylvania, and NPI 1720036445, issued on May 5, 2006. Check the license (Pennsylvania MD060558L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Margaret M. Fitzsimons
- Credential
- MB.B
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- MD060558L PA
Self-reported in NPPES; status is on the state search - Practice location
- 500 University Dr, Hershey, PA 17033
- Phone
- (800) 243-1455
- Enumerated
- May 5, 2006
- Record last updated
- Dec 6, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (717) 531-6776
- Medicaid ID
- 1015898520001 PA
- Medicare enrollment
- Enrolled (PECOS I20060410000501); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 651 in Pennsylvania → Look up another NPI →
Also registered at 500 University Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Victor Abarca, CRNACertified Registered Nurse Anesthetist1003575853
- Aiza Abbas, MDStudent in an Organized Health Care Education/Training Program1164312500
- Fatemeh Abbasi, MDPulmonary Disease Physician1750878625
- Andrea Abbe, LDNRegistered Dietitian1366623795
- Mahdi Abdallah, MDStudent in an Organized Health Care Education/Training Program1497457360
- Ashraf Abdelhalim, MDAnesthesiology Physician1356931729
Verify Margaret M. Fitzsimons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD060558LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% more Medicare Part D claims than the average nephrology physician in 2024
2,785 Medicare Part D claims for 256 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 28 claims were for opioids.
Most prescribed
- Amlodipine Besylate198 claims
- Furosemide177 claims
- Calcitriol156 claims
- Lisinopril91 claims
- Losartan Potassium89 claims
- Chlorthalidone85 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 71.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $24.07
2 payments; by number, the most common kind was food and beverage; the largest payer was Vifor Pharma, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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.
Bills Medicare through one group practice
- The Milton S Hershey Medical Center Physicians GroupHershey, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret M. Fitzsimons among 651 nephrology physician records in Pennsylvania
Margaret M. Fitzsimons, MB.B is one of 651 nephrology physician records with a practice address in Pennsylvania. 84% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1987 · median 2001 among the 468 with a school on file
- Record last updated2019 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Pennsylvania
There are 651 nephrology physician records in Pennsylvania.
All 651 in Pennsylvania → Every provider in Hershey → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Muhammad AhmedHershey, PA 170331457030033
- Karim Bitar, M.D.Hershey, PA 170331609032523
- Umar Farooq, M.DHershey, PA 170331972796621
- Nasrollah Ghahramani, MDHershey, PA 170331538193479
- Amanda Karasinski, MDHershey, PA 170331528486099
- Gurwant Kaur, M.D.Hershey, PA 170331457615122
- Fareeha Khalil, MDHershey, PA 170331295154425
- Ronald Miller, MDHershey, PA 170331083663355
Common questions
What is Margaret M. Fitzsimons, MB.B's NPI number?
Margaret M. Fitzsimons, MB.B's National Provider Identifier (NPI) is 1720036445, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret M. Fitzsimons, MB.B located?
The NPPES record lists a practice address at 500 University Dr, Hershey, PA, 17033. Phone: (800) 243-1455. Providers update this record themselves, so call before visiting.
How can I verify Margaret M. Fitzsimons, MB.B's license?
NPPES lists Pennsylvania license number MD060558L, 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 Margaret M. Fitzsimons, MB.B prescribe under Medicare Part D?
In 2024, Margaret M. Fitzsimons, MB.B had 2,785 Medicare Part D claims for 256 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Margaret M. Fitzsimons, MB.B's MIPS final score?
The 2023 MIPS final score is 71.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.