Onyekachukwu Olisemeka, M.D.
NPI 1285215889 · Family Medicine Physician · Detroit, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Onyekachukwu Olisemeka, M.D. is a Family Medicine Physician provider in Detroit, MI (NPI 1285215889).
Provider details
- NPI number
- 1285215889
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
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
5 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
50 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 27 | $173 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 23 | $120 |
Typical Medicare-allowed amounts for these services range $120–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
Practice location
Mailing address
Additional practice locations (1)
- 900 N Washington StDu Quoin, IL 62832-1233Phone: (618) 542-2146
Registry dates
- Enumerated
- 2021-04-16
- Last updated
- 2024-07-23
- Certified
- 2024-07-23
Frequently asked questions
- What is Onyekachukwu Olisemeka's NPI number?
- Onyekachukwu Olisemeka's National Provider Identifier (NPI) is 1285215889, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Onyekachukwu Olisemeka's specialty?
- Onyekachukwu Olisemeka is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Onyekachukwu Olisemeka located?
- Onyekachukwu Olisemeka's practice location on file with NPPES is 19460 Grand River Ave, Detroit, MI 48223-1200.
- What is Onyekachukwu Olisemeka's phone number?
- The practice phone number listed in the NPPES registry for Onyekachukwu Olisemeka is (313) 387-1097.
- Does Onyekachukwu Olisemeka accept Medicare?
- Onyekachukwu Olisemeka is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Onyekachukwu Olisemeka's NPI active?
- Yes — Onyekachukwu Olisemeka's NPI (1285215889) is active in the NPPES registry as of the last update on 2024-07-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.