DR. OYIYECHUKWU ONWUDIWE MD
NPI 1083280952
Internal Medicine - Endocrinology, Diabetes & Metabolism in Towson, MD

Active since June 01, 2021PECOS Enrolled
515 FAIRMOUNT AVE STE 320, TOWSON, MD 21286(410) 486-0497 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Oyiyechukwu Onwudiwe Md NPPES

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

DR. OYIYECHUKWU ONWUDIWE MD (NPI 1083280952) is an individual endocrinology, diabetes & metabolism provider in Towson, Maryland, licensed in Maryland (D0106531) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Pikesville, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1083280952
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. OYIYECHUKWU ONWUDIWECredential: MD
Location Address515 FAIRMOUNT AVE STE 320Towson, MD 21286-5466
Mailing Address515 Fairmount Ave Ste 400Towson, MD 21286-8518
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateJune 1, 2021
Last NPPES UpdateJune 24, 2026
NPPES CertifiedJune 24, 2026
✔ NPI 1083280952 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in MD · D0106531
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
515 FAIRMOUNT AVE STE 320, Towson, MD 21286

Secondary Practice Location 1

Location 11838 Greene Tree Rd Ste 225APikesville, MD 21208-6391 · Phone (410) 486-0497

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Oyiyechukwu Onwudiwe Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6608332812
PECOS Enrollment IDI20260728005014
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 Reassignment

Medicare enrollment records show Oyiyechukwu Onwudiwe reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Multi-Specialty
515 FAIRMOUNT AVE STE 300
Towson, MD 21286
  • Reassigned Medicare billing, Maryland enrollment
  • 39 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 21286 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Endocrinology, Diabetes & Metabolism)
515 FAIRMOUNT AVE STE 320
TOWSON, MD 21286
Internal Medicine
515 FAIRMOUNT AVE STE 320
TOWSON, MD 21286

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 Oyiyechukwu Onwudiwe's NPI number?

The NPI number for Oyiyechukwu Onwudiwe is 1083280952. It was assigned to this individual provider in the NPPES registry on June 1, 2021.

Where is Oyiyechukwu Onwudiwe located?

Oyiyechukwu Onwudiwe practices at 515 Fairmount Ave Ste 320, Towson, MD 21286. The listed phone number is (410) 486-0497.

What is Oyiyechukwu Onwudiwe's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Oyiyechukwu Onwudiwe enrolled in Medicare?

Yes. Oyiyechukwu Onwudiwe is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Oyiyechukwu Onwudiwe's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Oyiyechukwu Onwudiwe reassigns Medicare benefits to Clinical Associates P A (Towson, 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 Oyiyechukwu Onwudiwe'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 Oyiyechukwu Onwudiwe was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.