Maria J. Gaines-Onwukwe, NURSE PRACTITIONER
Acute Care Nurse Practitioner · Aberdeen, MD
Maria J. Gaines-Onwukwe, NURSE PRACTITIONER is an acute care nurse practitioner with a practice address in Aberdeen, Maryland, and NPI 1154009173, issued on Jul 10, 2023. Check the license (Maryland R183361, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria J. Gaines-Onwukwe
- Credential
- NURSE PRACTITIONER
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- R183361 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1013 Beards Hill RD Ste 101M, Aberdeen, MD 21001
- Phone
- (443) 655-3262
- Enumerated
- Jul 10, 2023
- Record last updated
- Aug 6, 2025
- Medicare enrollment
- Enrolled (PECOS I20231101000028); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 755 in Maryland → Look up another NPI →
Verify Maria J. Gaines-Onwukwe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R183361Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
471 Medicare Part D claims for 137 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium29 claims
- Eliquis21 claims
- Furosemide20 claims
- Metoprolol Tartrate19 claims
- Pantoprazole Sodium19 claims
- Losartan Potassium18 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.
Bills Medicare through one group practice
- Adfinitas Health AT Upper Chesapeake Aberdeen LLCAberdeen, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria J. Gaines-Onwukwe among 755 acute care nurse practitioner records in Maryland
Maria J. Gaines-Onwukwe, NURSE PRACTITIONER is one of 755 acute care nurse practitioner records with a practice address in Maryland. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 81% of them.
- NPI issued2023 · 81% of these records are older, 12% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2022 · median 2017 among the 494 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Maryland
There are 755 acute care nurse practitioner records in Maryland.
All 755 in Maryland → Every provider in Aberdeen → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Arddhy Rodriguez, CRNPAbingdon, MD 210091003476748
- Amanda Balzer-CostinBel Air, MD 210141740619469
- Sharon Campbell, CRNPBel Air, MD 210141093019945
- Caitlin Donis, ACNPBel Air, MD 210141477956555
- Barbara Donithan, AG-ACNP- BCBel Air, MD 210141346609161
- Larry Hilferding, CRNPBel Air, MD 210141386829737
- Laura Lewis, RN, MSN, ACNPBel Air, MD 210141760773881
- Ayo Mandi, CRNPBel Air, MD 210141174851422
Common questions
What is Maria J. Gaines-Onwukwe, NURSE PRACTITIONER's NPI number?
Maria J. Gaines-Onwukwe, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1154009173, issued on Jul 10, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Maria J. Gaines-Onwukwe, NURSE PRACTITIONER located?
The NPPES record lists a practice address at 1013 Beards Hill RD Ste 101M, Aberdeen, MD, 21001. Phone: (443) 655-3262. Providers update this record themselves, so call before visiting.
How can I verify Maria J. Gaines-Onwukwe, NURSE PRACTITIONER's license?
NPPES lists Maryland license number R183361, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Maria J. Gaines-Onwukwe, NURSE PRACTITIONER prescribe under Medicare Part D?
In 2024, Maria J. Gaines-Onwukwe, NURSE PRACTITIONER had 471 Medicare Part D claims for 137 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.