NPPES file of Aug 9, 2026

Erin Da Hye Nelson

Psychiatry Physician · Mesa, AZ

Erin Da Hye Nelson is a psychiatry physician with a practice address in Mesa, Arizona, and NPI 1669906137, issued on Apr 12, 2017. Check the license (Arizona 59834, as entered in NPPES) on the Arizona Medical Board; 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
1669906137
Name
Erin Da Hye Nelson
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
59834 AZ
Self-reported in NPPES; status is on the state search
Practice location
570 W Brown RD, Mesa, AZ 85201
Phone
(480) 344-2000
Enumerated
Apr 12, 2017
Record last updated
Feb 9, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210114002955); accepts Medicare assignment
Medical or professional school
University Of Arizona College Of Medicine, 2017
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 570 W Brown RD

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

  1. Ryan Adams, BEHAVIORIALISTClinical Social Worker1861611519
  2. Gretchen Alexander, MDPsychiatry Physician1851579783
  3. Erum Ali, MDChild & Adolescent Psychiatry Physician1982622072
  4. Maria-Jesus Bailon, MDPsychiatry Physician1326085358
  5. Nicholas Baldwin, D.O.Psychiatry Physician1598022063
  6. Vernon Barksdale, MD,MPHPsychiatry Physician1871547380

Verify Erin Da Hye Nelson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 59834
    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
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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85% fewer Medicare Part D claims than the average psychiatry physician in 2024

152 Medicare Part D claims for 29 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Erin Nelson152
  2. Specialty average1,000

Most prescribed

  1. Duloxetine Hcl18 claims
  2. Trazodone Hcl18 claims
  3. Hydroxyzine Hcl15 claims
  4. Prazosin Hcl15 claims
  5. Sertraline Hcl14 claims
  6. Bupropion Xl12 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.

Bills Medicare through one group practice

  1. Maricopa County Special Health Care DistrictAvondale, AZ

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

Erin Da Hye Nelson among 942 psychiatry physician records in Arizona

Erin Da Hye Nelson is one of 942 psychiatry physician records with a practice address in Arizona. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 79% of them.

  • NPI issued2017 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated2017 · median 2007 among the 382 with a school on file
  • Record last updated2021 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Arizona

There are 942 psychiatry physician records in Arizona.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Maria-Jesus Bailon, MDMesa, AZ 852011326085358
  2. Vernon Barksdale, MD,MPHMesa, AZ 852011871547380
  3. Esad Boskailo, MDMesa, AZ 852011245284660
  4. Laura Don, MDMesa, AZ 852011922052182
  5. Samuel Hand, MDMesa, AZ 852011780639161
  6. Dennis Hughes, MDMesa, AZ 852011073552527
  7. William James, MDMesa, AZ 852011952340028
  8. Carol Olson, MDMesa, AZ 852011639125313

Common questions

What is Erin Da Hye Nelson's NPI number?

Erin Da Hye Nelson's National Provider Identifier (NPI) is 1669906137, issued on Apr 12, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Erin Da Hye Nelson located?

The NPPES record lists a practice address at 570 W Brown RD, Mesa, AZ, 85201. Phone: (480) 344-2000. Providers update this record themselves, so call before visiting.

How can I verify Erin Da Hye Nelson's license?

NPPES lists Arizona license number 59834, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Erin Da Hye Nelson prescribe under Medicare Part D?

In 2024, Erin Da Hye Nelson had 152 Medicare Part D claims for 29 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.