NPPES file of Aug 9, 2026

Ndidi Constance Onyema, PMHNP

Psychiatric/Mental Health Nurse Practitioner · Castle Rock, CO

Ndidi Constance Onyema, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Castle Rock, Colorado, and NPI 1033986799, issued on Dec 4, 2023. Check the license (Colorado APN.099233-NP, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033986799
Name
Ndidi Constance Onyema
Credential
PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
APN.099233-NP CO
Self-reported in NPPES; status is on the state search
Practice location
753 Maleta LN Ste 204, Castle Rock, CO 80108
Phone
(303) 993-6071
Enumerated
Dec 4, 2023
Record last updated
Dec 10, 2023
Fax
(720) 358-5906
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 753 Maleta LN Ste 204

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amber Gates, PMHNPPsychiatric/Mental Health Nurse Practitioner1710357462
  2. Adria OwensPsychiatric/Mental Health Nurse Practitioner1144908914

Verify Ndidi Constance Onyema in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license APN.099233-NP
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Colorado license search

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68% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

288 Medicare Part D claims for 38 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Ndidi Onyema288
  2. Specialty average906

Most prescribed

  1. Aripiprazole23 claims
  2. Duloxetine Hcl19 claims
  3. Clonazepam17 claims
  4. Trintellix17 claims
  5. Hydroxyzine Pamoate14 claims
  6. Zolpidem Tartrate14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $184.16

8 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ndidi Onyema$184.16
  2. Specialty average$1,027.77

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Ndidi Constance Onyema among 1,336 psychiatric/mental health nurse practitioner records in Colorado

Ndidi Constance Onyema, PMHNP is one of 1,336 psychiatric/mental health nurse practitioner records with a practice address in Colorado. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 65% of them.

  • NPI issued2023 · 65% of these records are older, 26% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 55% of these records are
  • Record last updated2023 · 18% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 psychiatric/mental health nurse practitioner records list a practice address in Castle Rock

They are 14 of the 1,319 NPPES records with a practice address in Castle Rock, and 1,336 psychiatric/mental health nurse practitioner records in Colorado.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. April Chamberlin, PMHNP-BCCastle Rock, CO 801081063926947
  2. Amber Gates, PMHNPCastle Rock, CO 801081710357462
  3. Marrisa Montano-White, PMHNPCastle Pines, CO 801081376404053
  4. Adria OwensCastle Rock, CO 801081144908914
  5. Ashlee Pulver, PMHNPCastle Rock, CO 801081811826738
  6. Erin Gray, PMHNPCastle Rock, CO 801091821939570
  7. Stacia McNeely, PMHNPElizabeth, CO 801071275412678
  8. Laura Merillat, APNCastle Rock, CO 801091225750722

Common questions

What is Ndidi Constance Onyema, PMHNP's NPI number?

Ndidi Constance Onyema, PMHNP's National Provider Identifier (NPI) is 1033986799, issued on Dec 4, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Ndidi Constance Onyema, PMHNP located?

The NPPES record lists a practice address at 753 Maleta LN Ste 204, Castle Rock, CO, 80108. Phone: (303) 993-6071. Providers update this record themselves, so call before visiting.

How can I verify Ndidi Constance Onyema, PMHNP's license?

NPPES lists Colorado license number APN.099233-NP, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Ndidi Constance Onyema, PMHNP prescribe under Medicare Part D?

In 2024, Ndidi Constance Onyema, PMHNP had 288 Medicare Part D claims for 38 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.