Barbara Mackenzie, ARNP
NPI 1407921836 · Psychiatric/Mental Health Nurse Practitioner · Yakima, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Mackenzie, ARNP is a Psychiatric/Mental Health Nurse Practitioner provider in Yakima, WA (NPI 1407921836).
Provider details
- NPI number
- 1407921836
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP30001638 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clonazepam | 46 |
| Alprazolam | 21 |
| Diazepam | 21 |
| Trazodone Hcl | 16 |
| Dextroamphetamine Sulfate | 14 |
| Lithium Carbonatebrand: Lithium Carbonate Er | 11 |
| Quetiapine Fumaratebrand: Quetiapine Fumarate Er | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-21
- Last updated
- 2014-02-06
Frequently asked questions
- What is Barbara Mackenzie's NPI number?
- Barbara Mackenzie's National Provider Identifier (NPI) is 1407921836, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Mackenzie's specialty?
- Barbara Mackenzie is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Barbara Mackenzie located?
- Barbara Mackenzie's practice location on file with NPPES is 32 N 3rd St, Yakima, WA 98901-2788.
- What is Barbara Mackenzie's phone number?
- The practice phone number listed in the NPPES registry for Barbara Mackenzie is (509) 575-6445.
- Does Barbara Mackenzie accept Medicare?
- Barbara Mackenzie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Mackenzie's NPI active?
- Yes — Barbara Mackenzie's NPI (1407921836) is active in the NPPES registry as of the last update on 2014-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.