NPPES file of Aug 9, 2026

Allen Nelson

Student in an Organized Health Care Education/Training Program · Santa Ana, CA

Allen Nelson is a student in an organized health care education/training program with a practice address in Santa Ana, California, and NPI 1548757610, issued on Apr 15, 2018. Check the license 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
1548757610
Name
Allen Nelson
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
Practice location
1900 E 4TH St, Santa Ana, CA 92705
Phone
(714) 967-4755
Enumerated
Apr 15, 2018
Record last updated
Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200511000298); accepts Medicare assignment
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 1900 E 4TH St

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

  1. Ashvin Antony, MDStudent in an Organized Health Care Education/Training Program1922858919
  2. Donald Apodaca, O.D.Low Vision Rehabilitation Optometrist1831275916
  3. Austin ArdalanStudent in an Organized Health Care Education/Training Program1184251258
  4. Gelyan ArevaloMarriage & Family Therapist1871062638
  5. Claudia ArnoldPharmacist1366981870
  6. Neely AtamaniukStudent in an Organized Health Care Education/Training Program1275273310

Verify Allen Nelson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
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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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26.8 times the Medicare Part D claims of the average student in an organized health care education/training program in 2024

4,956 Medicare Part D claims for 954 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 89 claims were for opioids.

  1. Allen Nelson4,956
  2. Specialty average185

Most prescribed

  1. Atorvastatin Calcium418 claims
  2. Amlodipine Besylate261 claims
  3. Lisinopril233 claims
  4. Losartan Potassium231 claims
  5. Levothyroxine Sodium200 claims
  6. Rosuvastatin Calcium185 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. Southern California Permanente Medical GroupSan Diego, CA

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

Allen Nelson among 40,652 student in an organized health care education/training program records in California

Allen Nelson is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 17% of them.

  • NPI issued2018 · 17% of these records are older, 80% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileYes · 6% of these records are
  • Graduated2018 · median 2017 among the 2,409 with a school on file
  • Record last updated2021 · 26% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

188 student in an organized health care education/training program records list a practice address in Santa Ana

They are 188 of the 8,904 NPPES records with a practice address in Santa Ana, and 40,652 student in an organized health care education/training program records in California.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. Kyle Case, D.O.Santa Ana, CA 927051760757223
  2. Nelson Ferguson, MFT INTERNSanta Ana, CA 927051457631772
  3. Vanessa Flores, M.D.Santa Ana, CA 927051336402163
  4. William HsuSanta Ana, CA 927051750777371
  5. Nicholas Huynh, M.D.Santa Ana, CA 927051538429113
  6. William KimSanta Ana, CA 927051205271517
  7. Tiffanie Luk, M.D.Santa Ana, CA 927051851735286
  8. Scott McIver, DOSanta Ana, CA 927051932475456

Common questions

What is Allen Nelson's NPI number?

Allen Nelson's National Provider Identifier (NPI) is 1548757610, issued on Apr 15, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Allen Nelson located?

The NPPES record lists a practice address at 1900 E 4TH St, Santa Ana, CA, 92705. Phone: (714) 967-4755. Providers update this record themselves, so call before visiting.

How can I verify Allen Nelson's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Allen Nelson prescribe under Medicare Part D?

In 2024, Allen Nelson had 4,956 Medicare Part D claims for 954 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.