Doctor profile · Federal record

Dr. Mary Ahlers, DO

Family Medicine Physician (CMS: Family Practice) · Brookings, SD

  • NPI 1609301365
  • Accepts Medicare
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
400 22Nd Ave
Brookings, SD 570062450
(605) 697-9500

Credentials & registration

NPPES · NUCC
NPI registered
May 2017 — 9 yrs on file
Profile last updated
January 4, 2021
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
South Dakota #12378

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609301365. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,106
Distinct HCPCS
10
Medicare allowed
$15,782
HCPCS Description Services Patients Avg allowed
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 155 107 $8
80053 Blood test, comprehensive group of blood chemicals 142 95 $10
80048 Blood test, basic group of blood chemicals (calcium, total) 104 59 $8
80061 Blood test, lipids (cholesterol and triglycerides) 98 83 $13
84443 Blood test, thyroid stimulating hormone (tsh) 92 65 $16
83036 Hemoglobin a1c level 82 55 $9
82607 Cyanocobalamin (vitamin b-12) level 51 43 $15
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing 45 41 $6
77063 Screening 3d breast mammography 42 42 $24
77067 Screening mammography 42 42 $92

In context: peer comparison

Among 7 peers in this city , average services per provider: 59. This provider delivers 19× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,816
Patients
347
Total drug cost
$17,237
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 266 56 $2,176
Levothyroxine Sodium Generic 258 43 $2,112
Amlodipine Besylate Generic 196 36 $987
Lisinopril Generic 151 32 $847
Losartan Potassium Generic 125 31 $1,677
Hydrochlorothiazide Generic 122 27 $383
Gabapentin Generic 120 19 $1,749
Metformin Hcl Generic 91 19 $694
Rosuvastatin Calcium Generic 85 23 $1,816
Trazodone Hcl Generic 81 0 $540

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Ahlers's medical specialty?
Dr. Mary Ahlers practices Family Medicine Physician in Brookings, SD.
Where does Dr. Mary Ahlers practice?
Dr. Mary Ahlers practices at 400 22Nd Ave, Brookings, SD 570062450. Office phone: 6056979500.
What is Dr. Mary Ahlers's NPI?
Dr. Mary Ahlers's National Provider Identifier (NPI) is 1609301365, issued by NPPES.
Does Dr. Mary Ahlers accept Medicare assignment?
Yes. Dr. Mary Ahlers accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Ahlers commonly perform?
Top Medicare-reported procedures in 2023: Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025); Blood test, comprehensive group of blood chemicals (HCPCS 80053); Blood test, basic group of blood chemicals (calcium, total) (HCPCS 80048). Source: CMS Medicare Physician & Other Practitioners file.