Dorellie A. Owusu, DO
Internal Medicine Physician · Chestertown, MD
Dorellie A. Owusu, DO is an internal medicine physician with a practice address in Chestertown, Maryland, and NPI 1114554706, issued on Mar 24, 2020. Check the license (Maryland H0104687, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Dorellie A. Owusu
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- H0104687 MD
Self-reported in NPPES; status is on the state search - Practice location
- 100 Brown St Ste 1-100, Chestertown, MD 21620
- Phone
- (667) 343-3087
- Enumerated
- Mar 24, 2020
- Record last updated
- Dec 2, 2025
- Medicare enrollment
- Enrolled (PECOS I20251223002279); accepts Medicare assignment
- Medical or professional school
- Rowan University School Of Osteopathic Medicine, 2020
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Verify Dorellie A. Owusu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license H0104687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,073 Medicare Part D claims for 173 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium72 claims
- Levothyroxine Sodium66 claims
- Losartan Potassium63 claims
- Amlodipine Besylate46 claims
- Rosuvastatin Calcium36 claims
- Lisinopril32 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 MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- The Association OF University PhysiciansMountlake Terrace, WA
- University OF Maryland Community Medical Group IncChestertown, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dorellie A. Owusu among 3,904 internal medicine physician records in Maryland
Dorellie A. Owusu, 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 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2003 among the 2,445 with a school on file
- Record last updated2025 · 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).
6 internal medicine physician records list a practice address in Chestertown
They are 6 of the 229 NPPES records with a practice address in Chestertown, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Chestertown → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Helen Noble, M.D.Chestertown, MD 216201275537896
- Michael Peimer, M.D.Chestertown, MD 216201306840939
- Aisha Rahim, MDChestertown, MD 216201760638100
- Neil Stoddard, MDChestertown, MD 216201730226101
- Kin Wun, M.D.Chestertown, MD 216201518934298
- Deon Edgerson-GeorgeChester, MD 216191508033929
- Suzanne Niemela, MDChester, MD 216191346217361
- Gary Sprouse, M.D.Chester, MD 216191255443727
Common questions
What is Dorellie A. Owusu, DO's NPI number?
Dorellie A. Owusu, DO's National Provider Identifier (NPI) is 1114554706, issued on Mar 24, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Dorellie A. Owusu, DO located?
The NPPES record lists a practice address at 100 Brown St Ste 1-100, Chestertown, MD, 21620. Phone: (667) 343-3087. Providers update this record themselves, so call before visiting.
How can I verify Dorellie A. Owusu, DO's license?
NPPES lists Maryland license number H0104687, 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 Dorellie A. Owusu, DO prescribe under Medicare Part D?
In 2024, Dorellie A. Owusu, DO had 1,073 Medicare Part D claims for 173 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Dorellie A. Owusu, DO's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. 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.