NPPES file of Aug 9, 2026

Gustavo A. Diaz, PA-C

Physician Assistant · Sioux Falls, SD

Gustavo A. Diaz, PA-C is a physician assistant with a practice address in Sioux Falls, South Dakota, and NPI 1730123977, issued on Jun 16, 2006. Check the license (South Dakota 1074, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1730123977
Name
Gustavo A. Diaz
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
1074 SD
PA9102123 FL
5560 SC
PA03831 TX
Self-reported in NPPES; status is on the state search
Practice location
911 E. 20TH St., Sioux Falls, SD 57105
Phone
(605) 322-1300
Enumerated
Jun 16, 2006
Record last updated
Jul 8, 2025
Fax
(605) 322-1301
Medicare enrollment
Enrolled (PECOS I20180816003455); 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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8 nearest physician assistant records → All 674 in South Dakota → Look up another NPI →

Also registered at 911 E. 20TH St.

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

  1. Anne Ailts, MS, RD, LNRegistered Dietitian1760807135
  2. Francine Arneson, MDHospice and Palliative Medicine (Internal Medicine) Physician1033313523
  3. Courtney Cavigielli, PA-CPhysician Assistant1720534969

Verify Gustavo A. Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
    Search for license 1074    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 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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Bills Medicare through 2 group practices

  1. Grand Strand Specialty Associates, LLCMyrtle Beach, SC
  2. Health Services OF Central GeorgiaPerry, GA

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

Gustavo A. Diaz among 674 physician assistant records in South Dakota

Gustavo A. Diaz, PA-C is one of 674 physician assistant records with a practice address in South Dakota. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 67% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2002 · median 2014 among the 482 with a school on file
  • Record last updated2025 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

245 physician assistant records list a practice address in Sioux Falls

They are 245 of the 6,563 NPPES records with a practice address in Sioux Falls, and 674 physician assistant records in South Dakota.

All 674 in South Dakota → Every provider in Sioux Falls → Physician Assistant nationwide →

The 8 physician assistant records with the nearest ZIP codes

  1. Beth Amdahl, PA-CSioux Falls, SD 571051831183011
  2. David Axtman, MS PA-CSioux Falls, SD 571051023081668
  3. Karen Banken, PA-CSioux Falls, SD 571051346292489
  4. Billie Baxa, PACSioux Falls, SD 571051346294857
  5. Bonnie Bleeker, PA-CSioux Falls, SD 571051083618631
  6. Jason Domagalski, PASioux Falls, SD 571051710930664
  7. Carolyn Duenwald, PA-CSioux Falls, SD 571051720032261
  8. Jennifer Houwman, PA-CSioux Falls, SD 571051720084569

Common questions

What is Gustavo A. Diaz, PA-C's NPI number?

Gustavo A. Diaz, PA-C's National Provider Identifier (NPI) is 1730123977, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gustavo A. Diaz, PA-C located?

The NPPES record lists a practice address at 911 E. 20TH St., Sioux Falls, SD, 57105. Phone: (605) 322-1300. Providers update this record themselves, so call before visiting.

How can I verify Gustavo A. Diaz, PA-C's license?

NPPES lists South Dakota license number 1074, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity 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.