Ikenna Onyenemezu, MD
NPI 1497980023 · Hospitalist Physician · Annapolis, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ikenna Onyenemezu, MD is a Hospitalist Physician provider in Annapolis, MD (NPI 1497980023).
Provider details
- NPI number
- 1497980023
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,369 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 859 | $120 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 207 | $80 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 206 | $116 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 | 53 | $56 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 44 | $176 |
Typical Medicare-allowed amounts for these services range $56–$176 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 22 | 18 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 | 21 |
| Metoprolol Tartrate | 16 | — |
| Pantoprazole Sodium | 16 | 12 |
| Apixabanbrand: Eliquis | 15 | 11 |
| Metoprolol Succinate | 14 | — |
| Cefpodoxime Proxetil |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-05-27
- Last updated
- 2012-06-13
Frequently asked questions
- What is Ikenna Onyenemezu's NPI number?
- Ikenna Onyenemezu's National Provider Identifier (NPI) is 1497980023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ikenna Onyenemezu's specialty?
- Ikenna Onyenemezu is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Ikenna Onyenemezu located?
- Ikenna Onyenemezu's practice location on file with NPPES is 2001 Medical Parkway, Annapolis, MD 21401-3280.
- What is Ikenna Onyenemezu's phone number?
- The practice phone number listed in the NPPES registry for Ikenna Onyenemezu is (443) 481-1750.
- Does Ikenna Onyenemezu accept Medicare?
- Ikenna Onyenemezu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ikenna Onyenemezu's NPI active?
- Yes — Ikenna Onyenemezu's NPI (1497980023) is active in the NPPES registry as of the last update on 2012-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.