Maria Akamnonu, M.D.
NPI 1023403730 · Hospitalist Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Akamnonu, M.D. is a Hospitalist Physician provider in Riverside, CA (NPI 1023403730).
Provider details
- NPI number
- 1023403730
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A157203 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
244 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 127 | $118 |
| Critical Care, First 30-74 Minutes99291 | 69 | $211 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 34 | $115 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 14 | $173 |
Typical Medicare-allowed amounts for these services range $115–$211 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$128 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3865 Jackson StRiverside, CA 92503-3919Phone: (951) 688-2211
Registry dates
- Enumerated
- 2015-03-30
- Last updated
- 2021-08-30
- Certified
- 2021-08-30
Frequently asked questions
- What is Maria Akamnonu's NPI number?
- Maria Akamnonu's National Provider Identifier (NPI) is 1023403730, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Akamnonu's specialty?
- Maria Akamnonu is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Akamnonu located?
- Maria Akamnonu's practice location on file with NPPES is 4445 Magnolia Ave, Riverside, CA 92501-4135.
- What is Maria Akamnonu's phone number?
- The practice phone number listed in the NPPES registry for Maria Akamnonu is (951) 788-3000.
- Does Maria Akamnonu accept Medicare?
- Maria Akamnonu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Akamnonu's NPI active?
- Yes — Maria Akamnonu's NPI (1023403730) is active in the NPPES registry as of the last update on 2021-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.