NPPES file of Aug 9, 2026

Santiago Diaz Gonzalez

Neurology Physician · Sioux Falls, SD

Santiago Diaz Gonzalez is a neurology physician with a practice address in Sioux Falls, South Dakota, and NPI 1619545993, issued on Jun 14, 2021. Check the license (South Dakota 17654, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; 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
1619545993
Name
Santiago Diaz Gonzalez
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
17654 SD
L5532R AL
Self-reported in NPPES; status is on the state search
Practice location
1210 W 18TH St Ste 100, Sioux Falls, SD 57104
Phone
(605) 312-8500
Enumerated
Jun 14, 2021
Record last updated
Jul 1, 2026
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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Also registered at 1210 W 18TH St Ste 100

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

  1. Ahmed Abd ElazimNeurology Physician1285157065
  2. Nessim Amin, MDNeurology Physician1316369523
  3. Hasmik Amirjanyan, MDNeurology Physician1396309670
  4. Alexis Blackwelder, FNPFamily Nurse Practitioner1588291744
  5. Kayla FaberGerontology Nurse Practitioner1184219560
  6. Mehwish FarooqiNeurology Physician1982199303

Verify Santiago Diaz Gonzalez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
    Search for license 17654
    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 South Dakota 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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96% fewer Medicare Part D claims than the average neurology physician in 2024

61 Medicare Part D claims for 23 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Santiago Diaz Gonzalez61
  2. Specialty average1,370

Most prescribed

  1. Topiramate11 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: $615.81

25 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Santiago Diaz Gonzalez$615.81
  2. Specialty average$8,318.07

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

Santiago Diaz Gonzalez among 51 neurology physician records in South Dakota

Santiago Diaz Gonzalez is one of 51 neurology physician records with a practice address in South Dakota. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 96% of them.

  • NPI issued2021 · 96% of these records are older, 0% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileNo · 80% of these records are
  • Record last updated2026 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in South Dakota

There are 51 neurology physician records in South Dakota.

The 8 neurology physician records with the nearest ZIP codes

  1. Ahmed Abd ElazimSioux Falls, SD 571041285157065
  2. Nessim Amin, MDSioux Falls, SD 571041316369523
  3. Hasmik Amirjanyan, MDSioux Falls, SD 571041396309670
  4. Mehwish FarooqiSioux Falls, SD 571041982199303
  5. Efrat Feldman, M.DSioux Falls, SD 571041821303959
  6. Xuesheng Feng, MDSioux Falls, SD 571041881880987
  7. Jerome Freeman, MDSioux Falls, SD 571041609899665
  8. Fanny Jaquez, MDSioux Falls, SD 571041740212208

Common questions

What is Santiago Diaz Gonzalez's NPI number?

Santiago Diaz Gonzalez's National Provider Identifier (NPI) is 1619545993, issued on Jun 14, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Santiago Diaz Gonzalez located?

The NPPES record lists a practice address at 1210 W 18TH St Ste 100, Sioux Falls, SD, 57104. Phone: (605) 312-8500. Providers update this record themselves, so call before visiting.

How can I verify Santiago Diaz Gonzalez's license?

NPPES lists South Dakota license number 17654, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Santiago Diaz Gonzalez prescribe under Medicare Part D?

In 2024, Santiago Diaz Gonzalez had 61 Medicare Part D claims for 23 beneficiaries; the average among neurology physician prescribers was 1,370. 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.