Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DIANA N ONWU NP
NPI 1538095948
Nurse Practitioner - Psychiatric/Mental Health in Brooklyn, NY

Q: What is Diana Onwu's NPI number?

The NPI number for Diana Onwu is 1538095948. It was assigned to this individual provider in the NPPES registry on June 23, 2026.

Q: What is Diana Onwu's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Diana Onwu was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 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.

Active since June 23, 2026PECOS Enrolled

999 BLAKE AVE, BROOKLYN, NY 11208(718) 277-8303(718) 277-4795 Get Directions Write a Review

NPPES record last updated: September 24, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 24, 2026, Jul 23, 2026, Jul 15, 2026 (3 updates tracked since 2026).

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About Diana N Onwu Np NPPES

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

DIANA N ONWU NP (NPI 1538095948) is an individual psychiatric/mental health provider in Brooklyn, New York, licensed in New York (754835-1) and active in the NPI registry since June 2026. She is enrolled in Medicare PECOS and maintains 14 additional practice locations.

NPPES Registry Identity

NPI1538095948

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameDIANA N ONWUCredential: NP

Location Address999 BLAKE AVEBrooklyn, NY 11208-3535

Mailing Address44 W 28th StNew York, NY 10001-4212 · (000) 000-0000

Phone(718) 277-8303

Fax(718) 277-4795

Sole ProprietorNo

Enumeration DateJune 23, 2026

Last NPPES UpdateSeptember 24, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 23, 2026

✔ NPI 1538095948 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in NY · 754835-1

999 BLAKE AVE, Brooklyn, NY 11208

Open in Google Maps ↗

Secondary Practice Locations 14

Location 11880 Bathgate AvenueBronx, NY 10457-4501 · Phone (718) 294-5891 · Fax (718) 294-2468

Location 244 W 28th StNew York, NY 10001-4212 · Phone (212) 545-2400

Location 3511 West 157th StreetNew York, NY 10032-5058 · Phone (212) 781-7979 · Fax (212) 781-7963

Location 4255 East HoustonNew York, NY 10002-2301 · Phone (212) 477-1120 · Fax (212) 477-8957

Location 581 W 115th StNew York, NY 10026-3138 · Phone (212) 426-0088 · Fax (212) 426-8367

Location 61167 Nostrand AveBrooklyn, NY 11225-5417 · Phone (718) 778-0198 · Fax (718) 221-8169

Location 72581 Atlantic AveBrooklyn, NY 11207-2412 · Phone (718) 495-6700 · Fax (646) 988-2840

Location 8504 W 158th StNew York, NY 10032-7202 · Phone (917) 521-3130

Location 936-11 21st StreetLong Island City, NY 11106-4505 · Phone (718) 482-7772 · Fax (718) 482-9648

Location 1089-44 164th StreetJamaica, NY 11432-6103 · Phone (718) 523-2123 · Fax (718) 523-5833

Location 1194-98 Manhattan AvenueBrooklyn, NY 11206-2505 · Phone (718) 388-0390 · Fax (718) 486-5741

Location 121002 Westchester AvenueBronx, NY 10459-3204 · Phone (718) 320-4466 · Fax (718) 991-3829

Location 13350 Grand St Rm 240New York, NY 10002-4629 · Phone (212) 634-7550 ext. 7556

Location 1497-02 Sutphin BlvdJamaica, NY 11435-9995 · Phone (718) 657-7088 · Fax (718) 657-7092

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diana N Onwu Np 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11208 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

$105.06 typical visit price

range $67.40 – $203.53

Typical copayment $26.26 (range $16.85 – $50.88)

Most-billed visit code 99203

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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 12

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

JASMINE LUCIANO RDN

Dietitian, Registered