NPPES file of Aug 9, 2026

Twanna D. Davis-Arnold, PMHNP

Psychiatric/Mental Health Nurse Practitioner · San Diego, CA

Twanna D. Davis-Arnold, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in San Diego, California, and NPI 1790056232, issued on Jan 13, 2012. Check the license (California 20856, as entered in NPPES) with the California 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
1790056232
Name
Twanna D. Davis-Arnold
Credential
PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
20856 CA
Self-reported in NPPES; status is on the state search
Practice location
5952 EL Cajon Blvd, San Diego, CA 92115
Phone
(619) 229-8030
Enumerated
Jan 13, 2012
Record last updated
Jun 29, 2026
Fax
(619) 229-8031
Medicare enrollment
Enrolled (PECOS I20170921002751); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5952 EL Cajon Blvd

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

  1. Hsin-Yee ChangFamily Nurse Practitioner1730500810
  2. Russell Dehnel, PH.D.Psychologist1346526274

Verify Twanna D. Davis-Arnold in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 20856
    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 California license search

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91% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

78 Medicare Part D claims for 64 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.

  1. Twanna Davis-Arnold78
  2. Specialty average906

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: $33.16

1 payment: food and beverage; the largest payer was Lilly USA, LLC. 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. Twanna Davis-Arnold$33.16
  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.

Bills Medicare through one group practice

  1. Scripps HealthVista, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Twanna D. Davis-Arnold among 4,226 psychiatric/mental health nurse practitioner records in California

Twanna D. Davis-Arnold, PMHNP is one of 4,226 psychiatric/mental health nurse practitioner records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 13% of them.

  • NPI issued2012 · 13% of these records are older, 85% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2011 · median 2021 among the 1,965 with a school on file
  • Record last updated2026 · 16% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in California

There are 4,226 psychiatric/mental health nurse practitioner records in California.

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

  1. Wesley BrenemanSan Diego, CA 921151255149266
  2. Neltada Charlemagne, PMHNPSan Diego, CA 921151083386437
  3. Debra Graham, DNPSan Diego, CA 921151790757623
  4. Mary Jean RabaraSan Diego, CA 921151447882279
  5. Jacqueline Constantino, PMHNPSan Diego, CA 921161124463286
  6. Harpreet Dhillon, BSN, NPSan Diego, CA 921141770356065
  7. Wendi Legg, PMHNP-BCSan Diego, CA 921161033981469
  8. Seung Noh, NP (PMHNP)San Diego, CA 921141467222380

Common questions

What is Twanna D. Davis-Arnold, PMHNP's NPI number?

Twanna D. Davis-Arnold, PMHNP's National Provider Identifier (NPI) is 1790056232, issued on Jan 13, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Twanna D. Davis-Arnold, PMHNP located?

The NPPES record lists a practice address at 5952 EL Cajon Blvd, San Diego, CA, 92115. Phone: (619) 229-8030. Providers update this record themselves, so call before visiting.

How can I verify Twanna D. Davis-Arnold, PMHNP's license?

NPPES lists California license number 20856, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Twanna D. Davis-Arnold, PMHNP prescribe under Medicare Part D?

In 2024, Twanna D. Davis-Arnold, PMHNP had 78 Medicare Part D claims for 64 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.