DR. ADEKUNLE OLUWATOSIN OBISESAN MD
NPI 1164604138
Internal Medicine - Critical Care Medicine in Saint Louis, MO
About Dr. Adekunle Oluwatosin Obisesan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ADEKUNLE OLUWATOSIN OBISESAN MD (NPI 1164604138) is an individual critical care medicine provider in Saint Louis, Missouri, licensed in Missouri (2022012233) and active in the NPI registry since December 2007. He is enrolled in Medicare PECOS, is affiliated with St Lukes Hospital, and is a graduate of Other (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Adekunle Oluwatosin Obisesan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Adekunle Obisesan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- 215 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Lukes Hospital
Acute Care Hospitals · Chesterfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63141 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Adekunle Obisesan's NPI number?
The NPI number for Adekunle Obisesan is 1164604138. It was assigned to this individual provider in the NPPES registry on December 3, 2007.
Where is Adekunle Obisesan located?
Adekunle Obisesan practices at 625 S New Ballas Rd, Saint Louis, MO 63141. The listed phone number is (314) 251-6486.
What is Adekunle Obisesan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Adekunle Obisesan enrolled in Medicare?
Yes. Adekunle Obisesan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Adekunle Obisesan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Adekunle Obisesan reassigns Medicare benefits to Physician Specialists Of St Lukes LLC (Chesterfield, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Adekunle Obisesan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Adekunle Obisesan accept?
Health plans from Oscar Insurance Company list Adekunle Obisesan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Adekunle Obisesan affiliated with any hospitals?
According to CMS data, Adekunle Obisesan is affiliated with St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Adekunle Obisesan was last updated on July 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Adekunle Oluwatosin Obisesan, MD · NPI 1164604138
Critical Care Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since December 3, 2007.
## Identity
- **NPI:** 1164604138 (Entity type: Individual)
- **Enumerated:** December 3, 2007
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 2022012233 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 625 S NEW BALLAS RD, Saint Louis, MO 63141-8240
- **Phone:** (314) 251-6486 · **Fax:** (314) 251-4155
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Physician Specialists Of St Lukes LLC (NPI 1235168410, Chesterfield, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1998
## Record status
- **NPPES last updated:** July 6, 2022
- **Other identifiers:** Medicaid 1164604138 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1164604138) · Data from the CMS NPPES public registry.