Doctor profile · Federal record

Dr. Benjamin Aaker, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Yankton, SD

  • NPI 1811198278
  • Accepts Medicare
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
501 Summit St
Yankton, SD 570783855
(605) 668-8100

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
December 27, 2017
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
South Dakota #SD7930
Medicaid (2)
NE #10025121700 · NE #10024995100

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811198278. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
114
Distinct HCPCS
4
Medicare allowed
$12,068
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 41 41 $114
99285 Emergency department visit with high level of medical decision making 32 32 $165
99283 Emergency department visit with low level of medical decision making 30 29 $68
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 11 11 $8

In context: peer comparison

Among 2 peers in this city , average services per provider: 63. This provider delivers 1.8× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Benjamin Aaker's medical specialty?
Dr. Benjamin Aaker practices Emergency Medicine Physician in Yankton, SD.
Where does Dr. Benjamin Aaker practice?
Dr. Benjamin Aaker practices at 501 Summit St, Yankton, SD 570783855. Office phone: 6056688100.
What is Dr. Benjamin Aaker's NPI?
Dr. Benjamin Aaker's National Provider Identifier (NPI) is 1811198278, issued by NPPES.
Does Dr. Benjamin Aaker accept Medicare assignment?
Yes. Dr. Benjamin Aaker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Benjamin Aaker commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.