NPPES file of Aug 9, 2026

Darlene K. Christmon-Washington, PMHCNS-BC

Psychiatric/Mental Health Clinical Nurse Specialist · Rock Hill, SC

Darlene K. Christmon-Washington, PMHCNS-BC is a psychiatric/mental health clinical nurse specialist with a practice address in Rock Hill, South Carolina, and NPI 1598994170, issued on Jul 5, 2009. Check the license (South Carolina 23430, as entered in NPPES) with the South Carolina 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
1598994170
Name
Darlene K. Christmon-Washington
Credential
PMHCNS-BC
Primary taxonomy
Psychiatric/Mental Health Clinical Nurse Specialist 364SP0808X
License number
23430 SC
Self-reported in NPPES; status is on the state search
Practice location
455 Lakeshore Pkwy, Rock Hill, SC 29730
Phone
(803) 909-6363
Enumerated
Jul 5, 2009
Record last updated
Jun 11, 2026
Fax
(877) 658-8669
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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8 nearest psychiatric/mental health clinical nurse specialist records → All 12 in South Carolina → Look up another NPI →

Also registered at 455 Lakeshore Pkwy

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

  1. Angela Albero, PA-CPhysician Assistant1891714424
  2. Shukairo Baker, APRN, PMHNP-BC, LCSWPsychiatric/Mental Health Nurse Practitioner1659666444
  3. Carleigh Barnes, PA-CPhysician Assistant1730935826
  4. Mikayla Bowden, LPCMental Health Counselor1407587843
  5. James Charles, M.D.Internal Medicine Physician1962405316
  6. Susan Collins, D.M.D.Dentist1346359569

Verify Darlene K. Christmon-Washington in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
    Search for license 23430    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 South Carolina license search

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36% fewer Medicare Part D claims than the average psychiatric/mental health clinical nurse specialist in 2024

676 Medicare Part D claims for 69 beneficiaries, against an average of 1,054 among the 390 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Darlene Christmon-Washington676
  2. Specialty average1,054

Most prescribed

  1. Trazodone Hcl77 claims
  2. Mirtazapine48 claims
  3. Escitalopram Oxalate43 claims
  4. Fluoxetine Hcl37 claims
  5. Aripiprazole34 claims
  6. Quetiapine Fumarate31 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: $33.60

2 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 285 providers of this specialty with any payment received $924.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Darlene Christmon-Washington$33.60
  2. Specialty average$924.95

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

Darlene K. Christmon-Washington among 12 psychiatric/mental health clinical nurse specialist records in South Carolina

Darlene K. Christmon-Washington, PMHCNS-BC is one of 12 psychiatric/mental health clinical nurse specialist records with a practice address in South Carolina. 42% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 50% of them.

  • NPI issued2009 · 50% of these records are older, 42% newer
  • In a Medicare fileYes · 42% of these records are
  • In the CMS Doctors and Clinicians fileNo · 17% of these records are
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SP0808X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Clinical Nurse Specialist providers in South Carolina

There are 12 psychiatric/mental health clinical nurse specialist records in South Carolina.

All 12 in South Carolina → Every provider in Rock Hill → Psychiatric/Mental Health Clinical Nurse Specialist nationwide →

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

  1. Lauri Maze-Davis, APRNFort Mill, SC 297081831491331
  2. Laura Saylors, MSN, APRN, FNP-CAnderson, SC 296211063844967
  3. Karen Tipton, PMHCNSGreenville, SC 296071205917168
  4. Martha Ireland, PHD, RN, CS, CEDSHardeeville, SC 299271508448820
  5. Melva Gibeau, NP AND CNSDarlington, SC 295321922071810
  6. Sharon Martin, FNP,CNSMt Pleasant, SC 294641639242118
  7. Eugenia Reeves, RN,CNSCharleston, SC 294141083628663
  8. Therese Killeen, PHD APRNCharleston, SC 294031346451069

Common questions

What is Darlene K. Christmon-Washington, PMHCNS-BC's NPI number?

Darlene K. Christmon-Washington, PMHCNS-BC's National Provider Identifier (NPI) is 1598994170, issued on Jul 5, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Darlene K. Christmon-Washington, PMHCNS-BC located?

The NPPES record lists a practice address at 455 Lakeshore Pkwy, Rock Hill, SC, 29730. Phone: (803) 909-6363. Providers update this record themselves, so call before visiting.

How can I verify Darlene K. Christmon-Washington, PMHCNS-BC's license?

NPPES lists South Carolina license number 23430, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Darlene K. Christmon-Washington, PMHCNS-BC prescribe under Medicare Part D?

In 2024, Darlene K. Christmon-Washington, PMHCNS-BC had 676 Medicare Part D claims for 69 beneficiaries; the average among psychiatric/mental health clinical nurse specialist prescribers was 1,054. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.