Oladimeji Kassim, FNP-C
NPI 1861885675 · Psychiatric/Mental Health Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oladimeji Kassim, FNP-C is a Psychiatric/Mental Health Nurse Practitioner provider in Chicago, IL (NPI 1861885675).
Provider details
- NPI number
- 1861885675
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Male
- Sole proprietor
- No
- License
- 209012434 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
878 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 Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 628 | $65 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 160 | $69 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 35 | $157 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 30 | $71 |
| Psychiatric Diagnostic Evaluation90791 | 25 | $127 |
Typical Medicare-allowed amounts for these services range $65–$157 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Risperidone | 93 | 22 |
| Trazodone Hcl | 78 | 26 |
| Quetiapine Fumarate | 70 | 20 |
| Haloperidol | 51 | 15 |
| Sertraline Hcl | 45 | 20 |
| Benztropine Mesylate | 37 | 11 |
| Hydroxyzine Hcl | 32 | 15 |
| Divalproex Sodium |
Practice location
Mailing address
Additional practice locations (1)
- 840 W Irving Park Rd Ste 301Chicago, IL 60613-3011Phone: (773) 975-3269Fax: (773) 975-3270
Registry dates
- Enumerated
- 2015-03-18
- Last updated
- 2018-07-06
Frequently asked questions
- What is Oladimeji Kassim's NPI number?
- Oladimeji Kassim's National Provider Identifier (NPI) is 1861885675, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oladimeji Kassim's specialty?
- Oladimeji Kassim is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Oladimeji Kassim located?
- Oladimeji Kassim's practice location on file with NPPES is 2740 W Foster Ave Ste 412, Chicago, IL 60625-3532.
- What is Oladimeji Kassim's phone number?
- The practice phone number listed in the NPPES registry for Oladimeji Kassim is (773) 878-8200.
- Does Oladimeji Kassim accept Medicare?
- Oladimeji Kassim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oladimeji Kassim's NPI active?
- Yes — Oladimeji Kassim's NPI (1861885675) is active in the NPPES registry as of the last update on 2018-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.