NPPES file of Aug 9, 2026

Oluseun Osinowo

Psychiatric/Mental Health Nurse Practitioner · Chicago, IL

Oluseun Osinowo is a psychiatric/mental health nurse practitioner with a practice address in Chicago, Illinois, and NPI 1548614431, issued on Apr 18, 2016. Check the license (Illinois 277001223, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548614431
Name
Oluseun Osinowo
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
277001223 IL
209014022 IL
Self-reported in NPPES; status is on the state search
Practice location
4850 N Sawyer Ave Ste 1, Chicago, IL 60625
Phone
(872) 292-9958
Enumerated
Apr 18, 2016
Record last updated
Sep 16, 2025
Medicare enrollment
Enrolled (PECOS I20160420001307); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Oluseun Osinowo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 277001223
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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6.2 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024

5,654 Medicare Part D claims for 331 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. 86 claims were for opioids.

  1. Oluseun Osinowo5,654
  2. Specialty average906

Most prescribed

  1. Trazodone Hcl638 claims
  2. Risperidone634 claims
  3. Quetiapine Fumarate436 claims
  4. Haloperidol309 claims
  5. Ingrezza240 claims
  6. Atorvastatin Calcium238 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.

The MIPS final score for 2023 (Medicare payment program): 25.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%85.4
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $448.80

26 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Oluseun Osinowo$448.80
  2. Specialty average$1,027.77

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 4 group practices

  1. Altea Medical Illinois PLLCCahokia, IL
  2. Chindika Healthcare IncChicago, IL
  3. J C Medical Group LtdDolton, IL
  4. Post Acute Medical PLLCCahokia, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Oluseun Osinowo among 1,530 psychiatric/mental health nurse practitioner records in Illinois

Oluseun Osinowo is one of 1,530 psychiatric/mental health nurse practitioner records with a practice address in Illinois. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 20% of them.

  • NPI issued2016 · 20% of these records are older, 76% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2015 · median 2021 among the 917 with a school on file
  • Record last updated2025 · 17% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in Illinois

There are 1,530 psychiatric/mental health nurse practitioner records in Illinois.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Dana Anderson, PMHNP-BCChicago, IL 606251083905095
  2. Oladimeji Kassim, FNP-CChicago, IL 606251861885675
  3. Aloha LeblancChicago, IL 606251437665411
  4. Diana Sorber, DNPChicago, IL 606251831966852
  5. Richard TrosperChicago, IL 606251346181047
  6. Ifeoma Abolarin, PMHNPChicago, IL 606261528774353
  7. Cindy EdwardsChicago, IL 606241790138964
  8. Jamie Hamill, DNP, APRN, PMHNP-BCChicago, IL 606241598395360

Common questions

What is Oluseun Osinowo's NPI number?

Oluseun Osinowo's National Provider Identifier (NPI) is 1548614431, issued on Apr 18, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Oluseun Osinowo located?

The NPPES record lists a practice address at 4850 N Sawyer Ave Ste 1, Chicago, IL, 60625. Phone: (872) 292-9958. Providers update this record themselves, so call before visiting.

How can I verify Oluseun Osinowo's license?

NPPES lists Illinois license number 277001223, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Oluseun Osinowo prescribe under Medicare Part D?

In 2024, Oluseun Osinowo had 5,654 Medicare Part D claims for 331 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.

What is Oluseun Osinowo's MIPS final score?

The 2023 MIPS final score is 25.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.