Doctor profile · Federal record
Dr. Ryan Vaca, M.D.
Hematology & Oncology Physician (CMS: Medical Oncology) · Student in an Organized Health Care Education/Training Program · Sioux Falls, SD
- NPI 1700222148
- Accepts Medicare
- 13 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1000 E 23Rd St Ste 230
Sioux Falls, SD 571052122
(605) 322-6900
fax (605) 322-6901
Credentials & registration
- NPI registered
- May 2013 — 13 yrs on file
- Profile last updated
- September 1, 2021
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- South Dakota #12727
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1700222148. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
989
Distinct HCPCS
10
Medicare allowed
$98,703
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 265 | 138 | $93 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 206 | 116 | $63 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 155 | 89 | $137 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 91 | 65 | $93 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 68 | 46 | $135 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 52 | 29 | $74 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 39 | 32 | $64 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 31 | 31 | $127 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 30 | 30 | $172 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 27 | 24 | $124 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 333. This provider delivers 3.0× the peer median.Open Payments
Industry payments received
All-time total
$22
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Daiichi Sankyo Inc. | 1 | $22.33 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
506
Patients
129
Total drug cost
$1,145,446
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 89 | 26 | $430 |
| Abiraterone Acetate | Generic | 67 | 13 | $119,031 |
| Prochlorperazine Maleate | Generic | 51 | 35 | $440 |
| Ondansetron Odt (Ondansetron) | Brand | 34 | 23 | $710 |
| Xtandi (Enzalutamide) | Brand | 33 | 0 | $422,775 |
| Ondansetron Hcl | Generic | 32 | 19 | $517 |
| Eliquis (Apixaban) | Brand | 31 | 0 | $13,478 |
| Gabapentin | Generic | 24 | 0 | $175 |
| Levothyroxine Sodium | Generic | 23 | 0 | $69 |
| Potassium Chloride | Generic | 23 | 0 | $322 |
Hospital affiliations
Frequently asked questions
What is Dr. Ryan Vaca's medical specialty?
Dr. Ryan Vaca practices Hematology & Oncology Physician in Sioux Falls, SD.
Where does Dr. Ryan Vaca practice?
Dr. Ryan Vaca practices at 1000 E 23Rd St Ste 230, Sioux Falls, SD 571052122. Office phone: 6053226900.
What is Dr. Ryan Vaca's NPI?
Dr. Ryan Vaca's National Provider Identifier (NPI) is 1700222148, issued by NPPES.
Does Dr. Ryan Vaca accept Medicare assignment?
Yes. Dr. Ryan Vaca accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ryan Vaca commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.