Darlene Christmon-Washington, PMHCNS-BC
NPI 1598994170 · Psychiatric/Mental Health Clinical Nurse Specialist · Rock Hill, SC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darlene Christmon-Washington, PMHCNS-BC is a Psychiatric/Mental Health Clinical Nurse Specialist provider in Rock Hill, SC (NPI 1598994170).
Provider details
- NPI number
- 1598994170
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHCNS-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 23430 (SC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 77 | 21 |
| Mirtazapine | 48 | — |
| Escitalopram Oxalate | 43 | — |
| Fluoxetine Hcl | 37 | — |
| Aripiprazole | 34 | — |
| Quetiapine Fumarate | 31 | — |
| Cariprazine Hclbrand: Vraylar |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$34 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-07-05
- Last updated
- 2025-07-23
- Certified
- 2025-07-23
Frequently asked questions
- What is Darlene Christmon-Washington's NPI number?
- Darlene Christmon-Washington's National Provider Identifier (NPI) is 1598994170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darlene Christmon-Washington's specialty?
- Darlene Christmon-Washington is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Darlene Christmon-Washington located?
- Darlene Christmon-Washington's practice location on file with NPPES is 455 Lakeshore Pkwy, Rock Hill, SC 29730-4205.
- What is Darlene Christmon-Washington's phone number?
- The practice phone number listed in the NPPES registry for Darlene Christmon-Washington is (803) 909-6363.
- Does Darlene Christmon-Washington accept Medicare?
- Darlene Christmon-Washington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darlene Christmon-Washington's NPI active?
- Yes — Darlene Christmon-Washington's NPI (1598994170) is active in the NPPES registry as of the last update on 2025-07-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.