Doctor profile · Federal record

Dr. Oluwaseyi Ajayi, DNP FNP-BC

Family Nurse Practitioner (CMS: Nurse Practitioner) · Emergency Registered Nurse · Emergency Registered Nurse · Family Nurse Practitioner · Saint John, IN

  • NPI 1891559761
  • Accepts Medicare
  • 4 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9134 Sherwood CT
Saint John, IN 463730619
(219) 413-6641

Credentials & registration

NPPES · NUCC
NPI registered
February 2024 — 2 yrs on file
Profile last updated
April 29, 2024
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (4)
Indiana #71015183A · Indiana #28276137A · Illinois #041.410514 · Illinois #209.028983

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1891559761. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$119
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Organogenesis INC. 1 $119.02

By nature of payment

Food and Beverage
$119

Frequently asked questions

Auto-generated from federal data
What is Dr. Oluwaseyi Ajayi's medical specialty?
Dr. Oluwaseyi Ajayi practices Family Nurse Practitioner in Saint John, IN.
Where does Dr. Oluwaseyi Ajayi practice?
Dr. Oluwaseyi Ajayi practices at 9134 Sherwood CT, Saint John, IN 463730619. Office phone: 2194136641.
What is Dr. Oluwaseyi Ajayi's NPI?
Dr. Oluwaseyi Ajayi's National Provider Identifier (NPI) is 1891559761, issued by NPPES.
Does Dr. Oluwaseyi Ajayi accept Medicare assignment?
Yes. Dr. Oluwaseyi Ajayi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.