ONYEKACHI JOSEPH OYIRIARU MD
NPI 1093144875
Psychiatry & Neurology - Psychiatry in Norristown, PA

Q: What is Onyekachi Oyiriaru's NPI number?

The NPI number for Onyekachi Oyiriaru is 1093144875. It was assigned to this individual provider in the NPPES registry on November 2, 2013.

Q: What is Onyekachi Oyiriaru's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Active since November 02, 2013PECOS EnrolledAccepts Medicare Assignment

1201 DEKALB ST, NORRISTOWN, PA 19401(610) 277-7600(610) 275-0216 Get Directions Write a Review

NPPES record last updated: January 8, 2019. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 8, 2019, Jan 3, 2019 (2 updates tracked since 2019).

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About Onyekachi Joseph Oyiriaru Md NPPES

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

ONYEKACHI JOSEPH OYIRIARU MD (NPI 1093144875) is an individual psychiatry provider in Norristown, Pennsylvania, licensed in Pennsylvania (MD463536) and active in the NPI registry since November 2013. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1093144875

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameONYEKACHI JOSEPH OYIRIARUCredential: MD

Location Address1201 DEKALB STNorristown, PA 19401-3415

Mailing Address1100 Powell StNorristown, PA 19401-3820 · (610) 277-4600 · Fax (610) 275-0216

Phone(610) 277-7600

Fax(610) 275-0216

Sole ProprietorYes

Medical School CMSOtherGraduated 2002

Enumeration DateNovember 2, 2013

Last NPPES UpdateJanuary 8, 20192 updates tracked since enumeration

✔ NPI 1093144875 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in PA · MD463536

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

1201 DEKALB ST, Norristown, PA 19401

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Secondary Practice Locations 2

Location 11100 Powell StNorristown, PA 19401 · Phone (610) 277-4600 · Fax (610) 275-0216

Location 2556 S. Goddard Blvd., Suite 141King of Prussia, PA 19406-1940 · Phone (610) 277-7600

Other Identifiers 1

OtherMD463536PA · License

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Onyekachi Joseph Oyiriaru 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.

PECOS PAC ID2264778752

PECOS Enrollment IDI20190103001443, I20230201000138

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.

Areas of Expertise CMS Part B claims

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.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

64 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19401 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

$180.99 typical visit price

range $59.88 – $180.99

Typical copayment $45.24 (range $14.97 – $45.24)

Most-billed visit code 99205

Established Patient

$74.47 typical visit price

range $19.30 – $147.29

Typical copayment $18.61 (range $4.82 – $36.82)

Most-billed visit code 99213

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 20

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

MAHMOOD DADVAND M.D.

Psychiatry & Neurology (Psychiatry)