NPPES file of Aug 9, 2026

Erin Retzer, CRNA

Certified Registered Nurse Anesthetist · Rapid City, SD

Erin Retzer, CRNA is a certified registered nurse anesthetist with a practice address in Rapid City, South Dakota, and NPI 1710971239, issued on Sep 12, 2005. Check the license (South Dakota R028374, 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
1710971239
Name
Erin Retzer
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
R028374 SD
Self-reported in NPPES; status is on the state search
Practice location
216 Anamaria Dr, Rapid City, SD 57701
Phone
(605) 721-0337
Enumerated
Sep 12, 2005
Record last updated
Jul 13, 2026
Fax
(605) 721-0043
Medicaid ID
5752493 SD
Medicare enrollment
Enrolled (PECOS I20070621000507); 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 certified registered nurse anesthetist records → All 533 in South Dakota → Look up another NPI →

Also registered at 216 Anamaria Dr

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

  1. Lindsay Aarseth, MS, ATC, LATAthletic Trainer1700227717
  2. Nicholas Anderson, ATCAthletic Trainer1538900139
  3. Gary Brewer, CRNACertified Registered Nurse Anesthetist1427042944
  4. Matthew DavalosFamily Nurse Practitioner1043189277
  5. Abby Engle, FNP-CFamily Nurse Practitioner1528864758
  6. Dean Gibson, CRNACertified Registered Nurse Anesthetist1801881289

Verify Erin Retzer 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 R028374    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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One hospital affiliation

  1. Black Hills Surgical Hospital LLCRapid City, SD · Acute Care Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Erin Retzer among 533 certified registered nurse anesthetist records in South Dakota

Erin Retzer, CRNA is one of 533 certified registered nurse anesthetist records with a practice address in South Dakota. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1999 · median 2013 among the 372 with a school on file
  • Record last updated2026 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

101 certified registered nurse anesthetist records list a practice address in Rapid City

They are 101 of the 3,017 NPPES records with a practice address in Rapid City, and 533 certified registered nurse anesthetist records in South Dakota.

All 533 in South Dakota → Every provider in Rapid City → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Gary Brewer, CRNARapid City, SD 577011427042944
  2. Dean Gibson, CRNARapid City, SD 577011801881289
  3. Barry Jones, CRNARapid City, SD 577011407836943
  4. Earl Kessel, CRNARapid City, SD 577011174563100
  5. Kara McMachen, CRNARapid City, SD 577011376523126
  6. Craig Nedved, CRNARapid City, SD 577011407841885
  7. Douglas Retzer, CRNARapid City, SD 577011376537803
  8. Joel Schwiesow, CRNARapid City, SD 577011568456093

Common questions

What is Erin Retzer, CRNA's NPI number?

Erin Retzer, CRNA's National Provider Identifier (NPI) is 1710971239, issued on Sep 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Erin Retzer, CRNA located?

The NPPES record lists a practice address at 216 Anamaria Dr, Rapid City, SD, 57701. Phone: (605) 721-0337. Providers update this record themselves, so call before visiting.

How can I verify Erin Retzer, CRNA's license?

NPPES lists South Dakota license number R028374, 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.