DR. TIERRA D. OSEJI M.D.
NPI 1437418670
Pediatrics in Gilbert, AZ
About Dr. Tierra D. Oseji M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIERRA D. OSEJI M.D. (NPI 1437418670) is an individual pediatrics provider in Gilbert, Arizona, licensed in Arizona (81990) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in Baltimore.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Tierra D. Oseji M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Tierra Oseji reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Halethorpe, MD 21227
- Reassigned Medicare billing, Maryland enrollment
- 1,253 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85297 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Tierra Oseji's NPI number?
The NPI number for Tierra Oseji is 1437418670. It was assigned to this individual provider in the NPPES registry on May 9, 2012.
Where is Tierra Oseji located?
Tierra Oseji practices at 3367 S Mercy Rd Ste 205, Gilbert, AZ 85297. The listed phone number is (480) 793-7720.
What is Tierra Oseji's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Tierra Oseji enrolled in Medicare?
Yes. Tierra Oseji is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Tierra Oseji's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tierra Oseji reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Halethorpe, MD). 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 Tierra Oseji'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 Tierra Oseji was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 days 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. Tierra D. Oseji, M.D. · NPI 1437418670
Pediatrics physician in Gilbert, Arizona. Individual provider, active in the CMS NPPES registry since May 9, 2012.
## Identity
- **NPI:** 1437418670 (Entity type: Individual)
- **Enumerated:** May 9, 2012
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 81990 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 3367 S MERCY RD STE 205, Gilbert, AZ 85297-7604
- **Phone:** (480) 793-7720 · **Fax:** (480) 292-8795
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1417294984, Halethorpe, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1437418670) · Data from the CMS NPPES public registry.