DR. SAMUEL CHIJIOKE ONYEWU MBCHB
NPI 1770901514
Anesthesiology in Baltimore, MD
About Dr. Samuel Chijioke Onyewu Mbchb NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SAMUEL CHIJIOKE ONYEWU MBCHB (NPI 1770901514) is an individual anesthesiology provider in Baltimore, Maryland, licensed in Maryland (D0082177) and active in the NPI registry since March 2014. He is enrolled in Medicare PECOS, is affiliated with Meritus Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Samuel Chijioke Onyewu Mbchb 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.
Medicare Billing Reassignments
6Medicare enrollment records show Samuel Onyewu reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: University Of Maryland Anesthesiology Associates PA
- 303 clinicians in this Medicare group
Washington, DC 20037
- Reassigned Medicare billing, District of Columbia enrollment
- 1,275 clinicians in this Medicare group
Centreville, VA 20121
- Reassigned Medicare billing, Virginia enrollment
- Medicare enrollment name: Uva Community Health Medical Group LLC
- 584 clinicians in this Medicare group
Hagerstown, MD 21742
- Reassigned Medicare billing, Maryland enrollment
- 311 clinicians in this Medicare group
Fredericksburg, VA 22401
- Reassigned Medicare billing, Virginia enrollment
- 186 clinicians in this Medicare group
Pittsburgh, PA 15235
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Meritus Medical Center
Acute Care Hospitals · Hagerstown, MDMary Washington Hospital
Acute Care Hospitals · Fredericksburg, VAStafford Hospital, LLC
Acute Care Hospitals · Stafford, VAOther Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Samuel Onyewu's NPI number?
The NPI number for Samuel Onyewu is 1770901514. It was assigned to this individual provider in the NPPES registry on March 30, 2014.
Where is Samuel Onyewu located?
Samuel Onyewu practices at 22 S Greene St Fl 11, Baltimore, MD 21201. The listed phone number is (667) 214-1616.
What is Samuel Onyewu's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Samuel Onyewu enrolled in Medicare?
Yes. Samuel Onyewu 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.
Which organizations bill Medicare for Samuel Onyewu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Samuel Onyewu reassigns Medicare benefits to 6 organizations: University Of Maryland Anesthesiology Associates P.A. (Baltimore, MD), Medical Faculty Associates, Inc (Washington, DC), Nmg Affiliate Practice I, LLC (Centreville, VA), Meritus Medical Center Inc (Hagerstown, MD), Mary Washington Healthcare Specialty Services LLC (Fredericksburg, VA) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Samuel Onyewu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Samuel Onyewu affiliated with any hospitals?
According to CMS data, Samuel Onyewu is affiliated with Meritus Medical Center, Mary Washington Hospital and Stafford Hospital, LLC.
When was this NPI record last updated?
The NPPES record for Samuel Onyewu was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Samuel Chijioke Onyewu, MBCHB · NPI 1770901514
Anesthesiology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since March 30, 2014.
## Identity
- **NPI:** 1770901514 (Entity type: Individual)
- **Enumerated:** March 30, 2014
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** D0082177 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 S GREENE ST FL 11, Baltimore, MD 21201-1544
- **Phone:** (667) 214-1616 · **Fax:** (410) 328-1674
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): University Of Maryland Anesthesiology Associates P.A. (NPI 1033915145, Baltimore, MD); Medical Faculty Associates, Inc (NPI 1417990581, Washington, DC); Nmg Affiliate Practice I, LLC (NPI 1881046993, Centreville, VA); Meritus Medical Center Inc (NPI 1841058831, Hagerstown, MD); Mary Washington Healthcare Specialty Services LLC (NPI 1821033010, Fredericksburg, VA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** July 20, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1770901514) · Data from the CMS NPPES public registry.