Onyedikachi Michaels, M.D.
NPI 1821583584 · Internal Medicine Physician · Fresno, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Onyedikachi Michaels, M.D. is a Internal Medicine Physician provider in Fresno, CA (NPI 1821583584).
Provider details
- NPI number
- 1821583584
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A197796 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,458 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 35 Minutes99232 | 685 | $73 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 230 | $111 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 222 | $75 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 94 | $121 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 91 | $162 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 69 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 68 | 63 |
| Cefuroxime Axetilbrand: Cefuroxime | 57 | 56 |
| Apixabanbrand: Eliquis | 28 | 17 |
| Metoprolol Succinate | 24 | 16 |
| Metoprolol Tartrate | 22 | 15 |
| Amlodipine Besylate | 20 | 11 |
| Furosemide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-06-26
- Last updated
- 2025-11-24
- Certified
- 2025-11-24
Frequently asked questions
- What is Onyedikachi Michaels's NPI number?
- Onyedikachi Michaels's National Provider Identifier (NPI) is 1821583584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Onyedikachi Michaels's specialty?
- Onyedikachi Michaels is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Onyedikachi Michaels located?
- Onyedikachi Michaels's practice location on file with NPPES is 2823 Fresno St, Fresno, CA 93721-1324.
- What is Onyedikachi Michaels's phone number?
- The practice phone number listed in the NPPES registry for Onyedikachi Michaels is (559) 603-7367.
- Does Onyedikachi Michaels accept Medicare?
- Onyedikachi Michaels is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Onyedikachi Michaels's NPI active?
- Yes — Onyedikachi Michaels's NPI (1821583584) is active in the NPPES registry as of the last update on 2025-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.