Doctor profile · Federal record

Dr. Garrett Alderfer, MD

Internal Medicine Physician (CMS: Internal Medicine) · Pediatrics Physician · Bolivar, MO

  • NPI 1932424603
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 N Oakland Ave
Bolivar, MO 656133011
(417) 328-6000

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
April 23, 2021
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Missouri #2014008528

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1932424603. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
436
Distinct HCPCS
7
Medicare allowed
$45,224
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 174 88 $76
99239 Hospital discharge day management, more than 30 minutes 97 90 $109
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 51 48 $125
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 47 34 $114
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 29 28 $167
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 19 11 $48
99291 Critical care, first 30-74 minutes 19 15 $206

In context: peer comparison

Among 2 peers in Bolivar Internal Medicine Physician, average services per provider: 45. This provider delivers 9.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
66
Patients
66
Total drug cost
$691
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 16 16 $171
Clopidogrel (Clopidogrel Bisulfate) Brand 16 16 $288
Furosemide Generic 12 12 $51
Metoprolol Succinate Generic 11 11 $132
Metoprolol Tartrate Generic 11 11 $49

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Garrett Alderfer's medical specialty?
Dr. Garrett Alderfer practices Internal Medicine Physician in Bolivar, MO.
Where does Dr. Garrett Alderfer practice?
Dr. Garrett Alderfer practices at 1500 N Oakland Ave, Bolivar, MO 656133011. Office phone: 4173286000.
What is Dr. Garrett Alderfer's NPI?
Dr. Garrett Alderfer's National Provider Identifier (NPI) is 1932424603, issued by NPPES.
Does Dr. Garrett Alderfer accept Medicare assignment?
Yes. Dr. Garrett Alderfer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Garrett Alderfer commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.