KAREN AMA-SERWA CHACHU MD
NPI 1871727396
Internal Medicine - Gastroenterology in Oxon Hill, MD
About Karen Ama-serwa Chachu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN AMA-SERWA CHACHU MD (NPI 1871727396) is an individual gastroenterology provider in Oxon Hill, Maryland, licensed in Maryland (D0105263) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Duke University Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Karen Ama-serwa Chachu Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Duke University Hospital
Acute Care Hospitals · Durham, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20745 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OXON HILL, MD 20745
NATIONAL HARBOR, MD 20745
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Karen Chachu's NPI number?
The NPI number for Karen Chachu is 1871727396. It was assigned to this individual provider in the NPPES registry on May 12, 2009.
Where is Karen Chachu located?
Karen Chachu practices at 125 Potomac Psge Ste 250, Oxon Hill, MD 20745. The listed phone number is (240) 737-0085.
What is Karen Chachu's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Karen Chachu enrolled in Medicare?
Yes. Karen Chachu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Karen Chachu accept?
Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee and Blue Cross and Blue Shield of NC list Karen Chachu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Karen Chachu affiliated with any hospitals?
According to CMS data, Karen Chachu is affiliated with Duke University Hospital.
When was this NPI record last updated?
The NPPES record for Karen Chachu was last updated on January 12, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.
