Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Douglas Retzer, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1376537803

Douglas Retzer, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Rapid City, South Dakota. Qualified in 1999, 27 years ago. Practices with Black Hills Regional Eye Surgery Center LLC, a 7-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
27
Licensed in
SD
In the registry since
2005
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

216 Anamaria Dr
Rapid City, SD 57701-7366
Phone: (605) 721-0337
Fax: (605) 721-0043
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence R028354 (SD)

Record details

NPI number1376537803
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedSeptember 12, 2005
Last updated in NPPESJuly 13, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Black Hills Regional Eye Surgery Center Llc — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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