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

Dr. Ryan Anthony Vaca, MD

Individual provider Hematology & Oncology Physician · NPI 1700222148

Dr. Ryan Anthony Vaca, MD is a Medical Oncology in Sioux Falls, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 2013, 13 years ago. Practices with Avera McKennan, a 962-clinician group, accepts Medicare assignment and offers telehealth. Licensed in South Dakota.

Years since qualifying
13
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
SD
In the registry since
2013
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1000 E 23rd St Ste 230
Sioux Falls, SD 57105-2122
Phone: (605) 322-6900
Fax: (605) 322-6901
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 12727 (SD)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1700222148
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 13, 2013
Last updated in NPPESSeptember 1, 2021
Certification dateSeptember 1, 2021
Mailing address1000 E 23rd St Ste 230, Sioux Falls, SD 57105-2122

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2013 (13 years in practice)
Group practice Avera McKennan — 962 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

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