1. Home
  2. Directory
  3. Pennsylvania
  4. Harrisburg
  5. Pediatrics
  6. NPI Profile

OLAYEMI AJAYI M.D.
NPI 1477970556
Pediatrics - Neonatal-Perinatal Medicine in Harrisburg, PA

Active since March 26, 2014PECOS Enrolled
111 S FRONT ST, HARRISBURG, PA 17101(347) 257-6544 Get Directions Write a Review

NPPES record last updated: July 28, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 28, 2017, Jul 13, 2017, Feb 13, 2017 (3 updates tracked since 2017).

About Olayemi Ajayi M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

OLAYEMI AJAYI M.D. (NPI 1477970556) is an individual neonatal-perinatal medicine provider in Harrisburg, Pennsylvania, licensed in Pennsylvania (MD453053) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477970556
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameOLAYEMI AJAYICredential: M.D.
Location Address111 S FRONT STHarrisburg, PA 17101-2010
Mailing Address107 Carneliard CtPikesville, MD 21208-3342 · (347) 257-6544
Phone(347) 257-6544
Sole ProprietorNo
Enumeration DateMarch 26, 2014
Last NPPES UpdateJuly 28, 20173 updates tracked since enumeration
✔ NPI 1477970556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
Licenses✔ Licensed in PA · MD453053✔ Licensed in MD · D0082605
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License D0082605 (MD)
111 S FRONT ST, Harrisburg, PA 17101
Open in Google Maps ↗

Other Names 1

Former Name (1)Olayemi Oluwaseun Ola

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Olayemi Ajayi M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Olayemi Ajayi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Maryland St. Joseph Medical Group, LLC
62 mi
General Practice
7505 OSLER DR SUITE 402
Towson, MD 21204
  • Reassigned Medicare billing, Maryland enrollment
  • 501 clinicians in this Medicare group
NPI 1770836785 (410) 427-5330
University Of Maryland Pediatrics Assoc PA
68 mi
Clinical Medical Laboratory
655 W BALTIMORE ST, BRB7-042
Baltimore, MD 21201
  • Reassigned Medicare billing, Maryland enrollment
  • Medicare enrollment name: University Of Maryland Pediatric Associates, PA
  • 172 clinicians in this Medicare group
NPI 1588677934 (410) 706-5181
Scranton Quincy Clinic Company LLC
102 mi
Obstetrics & Gynecology
521 MT PLEASANT DR, SUITE 101
Scranton, PA 18503
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 124 clinicians in this Medicare group
NPI 1548547946 (570) 346-7338

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

JOSEPH ELI BENAKNIN D.O.
Emergency Medicine
111 S FRONT ST
HARRISBURG, PA 17101
Dauphin County (717) 782-5908
DAVID BITTNER METZGER MD
Family Medicine
111 S FRONT ST
HARRISBURG, PA 17101
Dauphin County (717) 231-8772
MRS. HOLLY ANN MALEY CRNA
Nurse Anesthetist, Certified Registered
111 S FRONT ST
HARRISBURG, PA 17101
Dauphin County (717) 782-5118
DOUGLAS JOHNSON CRNA
Nurse Anesthetist, Certified Registered
111 S FRONT ST
HARRISBURG, PA 17101
Dauphin County (717) 782-5118
QUAN TRAN M.D.
Internal Medicine
111 S FRONT ST
HARRISBURG, PA 17101
Dauphin County (717) 231-8772
SHOUK MANSOUR RD, CDCES
Dietitian, Registered
111 S FRONT ST
HARRISBURG, PA 17101
Dauphin County (717) 782-3131
THERESA NGUYEN PHARMD
Student in an Organized Health Care Education/Training Program
111 S FRONT ST
HARRISBURG, PA 17101
Dauphin County (717) 782-3338
JONELLE R DERK CRNP
Nurse Practitioner (Family)
111 S FRONT ST
HARRISBURG, PA 17101
Dauphin County (717) 782-3380

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 Olayemi Ajayi's NPI number?

The NPI number for Olayemi Ajayi is 1477970556. It was assigned to this individual provider in the NPPES registry on March 26, 2014. The provider is also known as Olayemi Oluwaseun Ola.

Where is Olayemi Ajayi located?

Olayemi Ajayi practices at 111 S Front St, Harrisburg, PA 17101. The listed phone number is (347) 257-6544.

What is Olayemi Ajayi's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Olayemi Ajayi enrolled in Medicare?

Yes. Olayemi Ajayi is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Olayemi Ajayi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Olayemi Ajayi reassigns Medicare benefits to 3 organizations: University Of Maryland St. Joseph Medical Group, LLC (Towson, MD), University Of Maryland Pediatrics Assoc PA (Baltimore, MD) and Scranton Quincy Clinic Company LLC (Scranton, PA). Each 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 Olayemi Ajayi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Olayemi Ajayi was last updated on July 28, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.