Rebecca B. Masters, MD
Internal Medicine Physician · Hershey, PA
Rebecca B. Masters, MD is an internal medicine physician with a practice address in Hershey, Pennsylvania, and NPI 1205885332, issued on May 8, 2006. Check the license (Pennsylvania MD057733L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Rebecca B. Masters
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD057733L PA
Self-reported in NPPES; status is on the state search - Practice location
- 500 University Dr, Hershey, PA 17033
- Phone
- (800) 233-4082
- Enumerated
- May 8, 2006
- Record last updated
- Nov 12, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicaid ID
- 0015554120005 PA
- Entity
- Type 1 · individual
Also registered at 500 University Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rebecca B. Masters in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD057733LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average internal medicine physician in 2024
944 Medicare Part D claims for 67 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate60 claims
- Levothyroxine Sodium49 claims
- Tamsulosin Hcl49 claims
- Atorvastatin Calcium36 claims
- Furosemide36 claims
- Mirtazapine35 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.
124 internal medicine physician records list a practice address in Hershey
They are 124 of the 3,972 NPPES records with a practice address in Hershey, and 7,300 internal medicine physician records in Pennsylvania.
All 124 in Hershey → All 7,300 in Pennsylvania → Every provider in Hershey →
Other internal medicine physician records in Pennsylvania
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- Sara Abbruzzi, D.O.Philadelphia, PA1689686313
- Ahmad Abdalla, MDPhiladelphia, PA1730981127
- Tori Abdalla, DOPhiladelphia, PA1942091699
- Hany Abdel, D.O.Plymouth Meeting, PA1164467262
Common questions
What is Rebecca B. Masters, MD's NPI number?
Rebecca B. Masters, MD's National Provider Identifier (NPI) is 1205885332, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca B. Masters, MD located?
The NPPES record lists a practice address at 500 University Dr, Hershey, PA, 17033. Phone: (800) 233-4082. Providers update this record themselves, so call before visiting.
How can I verify Rebecca B. Masters, MD's license?
NPPES lists Pennsylvania license number MD057733L, 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 Rebecca B. Masters, MD prescribe under Medicare Part D?
In 2024, Rebecca B. Masters, MD had 944 Medicare Part D claims for 67 beneficiaries; 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.