Karen Ama-Serwa Chachu, MD
Gastroenterology Physician · Oxon Hill, MD
Karen Ama-Serwa Chachu, MD is a gastroenterology physician with a practice address in Oxon Hill, Maryland, and NPI 1871727396, issued on May 12, 2009. Check the license (Maryland D0105263, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Karen Ama-Serwa Chachu
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- D0105263 MD
MD600004807 DC
2015-01167 NC
MT194931 PA
Self-reported in NPPES; status is on the state search - Practice location
- 125 Potomac Psge Ste 250, Oxon Hill, MD 20745
- Phone
- (240) 737-0085
- Enumerated
- May 12, 2009
- Record last updated
- Jan 12, 2026
- Fax
- (202) 296-0301
- Medicare enrollment
- Enrolled (PECOS I20251114003083); accepts Medicare assignment
- Medical or professional school
- Washington College Of Physicians And Surgeons, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Also registered at 125 Potomac Psge Ste 250
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abdulhosein Adham, M.D.Gastroenterology Physician1710933791
- Kasra Adham, MDGastroenterology Physician1053630285
Verify Karen Ama-Serwa Chachu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0105263Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average gastroenterology physician in 2024
370 Medicare Part D claims for 207 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Gavilyte-G69 claims
- Famotidine28 claims
- Stelara27 claims
- Sod Sulf-Potass Sulf-Mag Sulf23 claims
- Peg-3350 And Electrolytes22 claims
- Omeprazole21 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.
Industry payments in 2024: $15,145.27
9 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Scientific Affairs, LLC. The 13,350 providers of this specialty with any payment received $5,015.95 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 2 group practices
- Capital Digestive Care LLCOxon Hill, MD
- Duke Health Integrated Practice IncRaleigh, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Ama-Serwa Chachu among 505 gastroenterology physician records in Maryland
Karen Ama-Serwa Chachu, MD is one of 505 gastroenterology physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 71% of them.
- NPI issued2009 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2009 · median 2002 among the 344 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 gastroenterology physician records list a practice address in Oxon Hill
They are 6 of the 425 NPPES records with a practice address in Oxon Hill, and 505 gastroenterology physician records in Maryland.
All 505 in Maryland → Every provider in Oxon Hill → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Abdulhosein Adham, M.D.Oxon Hill, MD 207451710933791
- Kasra Adham, MDOxon Hill, MD 207451053630285
- Eric Lavery, M.D.Oxon Hill, MD 207451720059843
- Jonathan McCone, M.D.Oxon Hill, MD 207451578782553
- Sachin MohanOxon Hill, MD 207451114269461
- Thomas Gage, MDFort Washington, MD 207441205835378
- Aly Sabet, MDFt Washington, MD 207441598835860
- Ghulam Mohi-Ud-Din, M.D.Riverdale, MD 207371821142514
Common questions
What is Karen Ama-Serwa Chachu, MD's NPI number?
Karen Ama-Serwa Chachu, MD's National Provider Identifier (NPI) is 1871727396, issued on May 12, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Karen Ama-Serwa Chachu, MD located?
The NPPES record lists a practice address at 125 Potomac Psge Ste 250, Oxon Hill, MD, 20745. Phone: (240) 737-0085. Providers update this record themselves, so call before visiting.
How can I verify Karen Ama-Serwa Chachu, MD's license?
NPPES lists Maryland license number D0105263, 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 Karen Ama-Serwa Chachu, MD prescribe under Medicare Part D?
In 2024, Karen Ama-Serwa Chachu, MD had 370 Medicare Part D claims for 207 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.