Shamane I. Onwudiachi, PA-C
Physician Assistant · Catonsville, MD
Shamane I. Onwudiachi, PA-C is a physician assistant with a practice address in Catonsville, Maryland, and NPI 1780944892, issued on May 22, 2012. Check the license (Maryland C0004197, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Shamane I. Onwudiachi
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- C0004197 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6333 Baltimore National Pike, Catonsville, MD 21228
- Phone
- (443) 514-1361
- Enumerated
- May 22, 2012
- Record last updated
- Feb 28, 2024
- Medicare enrollment
- Enrolled (PECOS I20130606000086); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,224 in Maryland → Look up another NPI →
Also registered at 6333 Baltimore National Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rafai Bukhari, M.D.Family Medicine Physician1710114855
- James Donaldson, PA-CPhysician Assistant1598157596
- Sandra Jones, PA-CPhysician Assistant1235149816
- Motti Mulleta, M.D.Internal Medicine Physician1568676070
- Todd Phillips, MDFamily Medicine Physician1679569164
- Uttam Sarkar, PA-CMedical Physician Assistant1134448186
Verify Shamane I. Onwudiachi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0004197Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average physician assistant in 2024
320 Medicare Part D claims for 198 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Methylprednisolone47 claims
- Amoxicillin-Clavulanate Potass27 claims
- Nitrofurantoin Mono-Macro24 claims
- Amoxicillin20 claims
- Azithromycin20 claims
- Doxycycline Hyclate19 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: $89.46
4 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 64,719 providers of this specialty with any payment received $841.65 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 one group practice
- Patient First Maryland Medical Group PLLCOwings Mills, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shamane I. Onwudiachi among 3,224 physician assistant records in Maryland
Shamane I. Onwudiachi, PA-C is one of 3,224 physician assistant records with a practice address in Maryland. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 36% of them.
- NPI issued2012 · 36% of these records are older, 61% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2017 · median 2017 among the 1,974 with a school on file
- Record last updated2024 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 physician assistant records list a practice address in Catonsville
They are 24 of the 1,023 NPPES records with a practice address in Catonsville, and 3,224 physician assistant records in Maryland.
All 3,224 in Maryland → Every provider in Catonsville → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Felix Adeyemi, PHYSICIAN ASSISSTANTCatonsville, MD 212281801089123
- Ingrid Carlsson, PA-CCatonsville, MD 212281417258583
- Sharon CrumCatonsville, MD 212281780951889
- James Donaldson, PA-CCatonsville, MD 212281598157596
- John Greco, PA-CCatonsville, MD 212281811954167
- Sandra Jones, PA-CCatonsville, MD 212281235149816
- Michael Miller, PA-CCatonsville, MD 212281730580960
- Jill O'Malley, PA-CCatonsville, MD 212281942679709
Common questions
What is Shamane I. Onwudiachi, PA-C's NPI number?
Shamane I. Onwudiachi, PA-C's National Provider Identifier (NPI) is 1780944892, issued on May 22, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Shamane I. Onwudiachi, PA-C located?
The NPPES record lists a practice address at 6333 Baltimore National Pike, Catonsville, MD, 21228. Phone: (443) 514-1361. Providers update this record themselves, so call before visiting.
How can I verify Shamane I. Onwudiachi, PA-C's license?
NPPES lists Maryland license number C0004197, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Shamane I. Onwudiachi, PA-C prescribe under Medicare Part D?
In 2024, Shamane I. Onwudiachi, PA-C had 320 Medicare Part D claims for 198 beneficiaries; the average among physician assistant prescribers was 830. 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.