Brenda Elizabeth Tester, DO
Internal Medicine Physician · Bel Air, MD
Brenda Elizabeth Tester, DO is an internal medicine physician with a practice address in Bel Air, Maryland, and NPI 1114598778, issued on Jul 6, 2021. Check the license (Maryland H0107137, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Brenda Elizabeth Tester
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- H0107137 MD
Self-reported in NPPES; status is on the state search - Practice location
- 500 Upper Chesapeake Dr, Bel Air, MD 21014
- Phone
- (443) 949-0814
- Enumerated
- Jul 6, 2021
- Record last updated
- Jun 22, 2026
- Fax
- (443) 949-0825
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 500 Upper Chesapeake Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Titilayo Adetu, MDFamily Medicine Physician1053479204
- Christina AgronRegistered Nurse1336985225
- Ekunola Alade, MDInternal Medicine Physician1750556288
- Olusumbo AladeMedical Physician Assistant1417484965
Verify Brenda Elizabeth Tester in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license H0107137Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
262 Medicare Part D claims for 84 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium30 claims
- Levothyroxine Sodium15 claims
- Amlodipine Besylate14 claims
- Carvedilol13 claims
- Pantoprazole Sodium11 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.
Brenda Elizabeth Tester among 3,904 internal medicine physician records in Maryland
Brenda Elizabeth Tester, DO is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 59% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 internal medicine physician records list a practice address in Bel Air
They are 63 of the 1,945 NPPES records with a practice address in Bel Air, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Bel Air → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Vijay Abhyankar, M.D.Bel Air, MD 210141225033806
- David Dunn, M.D.Bel Air, MD 210141700881315
- Qinglin Gao, M.D.Bel Air, MD 210141053381780
- Philip Halstead, M.D.Bel Air, MD 210141962405704
- John Lynch, MDBel Air, MD 210141194721357
- David McClure, M.D.Bel Air, MD 210141275538878
- Ann Osman, M.D.Bel Air, MD 210141184629784
- Sherif Osman, M.D.Bel Air, MD 210141245235852
Common questions
What is Brenda Elizabeth Tester, DO's NPI number?
Brenda Elizabeth Tester, DO's National Provider Identifier (NPI) is 1114598778, issued on Jul 6, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Brenda Elizabeth Tester, DO located?
The NPPES record lists a practice address at 500 Upper Chesapeake Dr, Bel Air, MD, 21014. Phone: (443) 949-0814. Providers update this record themselves, so call before visiting.
How can I verify Brenda Elizabeth Tester, DO's license?
NPPES lists Maryland license number H0107137, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brenda Elizabeth Tester, DO prescribe under Medicare Part D?
In 2024, Brenda Elizabeth Tester, DO had 262 Medicare Part D claims for 84 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.