Doctor profile · Federal record

Dr. Richard Shimizu, MD

Internal Medicine Physician (CMS: Internal Medicine) · Springfield, MO

  • NPI 1164466645
  • Accepts Medicare
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1001 E Primrose St
Springfield, MO 658075155
(417) 875-3000
fax (417) 875-3051
Mailing address
Po Box 9007
Springfield, MO 658089007

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
July 5, 2012
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Missouri #115271
Medicaid
MO #203834403

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164466645. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,159
Distinct HCPCS
10
Medicare allowed
$92,966
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 277 170 $119
36415 Insertion of needle into vein for collection of blood sample 271 157 $8
80061 Blood test, lipids (cholesterol and triglycerides) 184 137 $13
80053 Blood test, comprehensive group of blood chemicals 176 133 $10
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 161 161 $120
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 142 122 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 102 74 $84
83036 Hemoglobin a1c level 99 63 $10
82306 Vitamin d-3 level 77 71 $29
99215 Established patient office or other outpatient visit, 40-54 minutes 55 48 $164

In context: peer comparison

Among 46 peers in Springfield Internal Medicine Physician, average services per provider: 117. This provider delivers 18× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,247
Transactions
63
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 16 $330.13
Abbott Laboratories 11 $232.89
Lilly USA, LLC 8 $136.38
Novo Nordisk INC 6 $107.26
Dexcom, INC. 4 $98.14
Genzyme Corporation 4 $90.75
GlaxoSmithKline, LLC. 5 $79.87
Pfizer INC. 2 $38.49
Phathom Pharmaceuticals, INC. 2 $37.07
Amgen INC. 2 $35.32
Axsome Therapeutics, INC. 1 $22.93
Bayer Healthcare Pharmaceuticals INC. 1 $21.87
Novartis Pharmaceuticals Corporation 1 $16.37

By nature of payment

Food and Beverage
$1,247

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,486
Patients
926
Total drug cost
$50,087
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 774 197 $7,510
Lisinopril Generic 435 121 $2,872
Amlodipine Besylate Generic 413 100 $2,297
Levothyroxine Sodium Generic 242 57 $2,959
Metformin Hcl Generic 232 59 $2,023
Metoprolol Succinate Generic 208 55 $3,236
Famotidine Generic 181 58 $4,286
Irbesartan Generic 159 36 $5,559
Potassium Chloride Generic 138 36 $9,434
Rosuvastatin Calcium Generic 137 43 $1,940

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Richard Shimizu's medical specialty?
Dr. Richard Shimizu practices Internal Medicine Physician in Springfield, MO.
Where does Dr. Richard Shimizu practice?
Dr. Richard Shimizu practices at 1001 E Primrose St, Springfield, MO 658075155. Office phone: 4178753000.
What is Dr. Richard Shimizu's NPI?
Dr. Richard Shimizu's National Provider Identifier (NPI) is 1164466645, issued by NPPES.
Does Dr. Richard Shimizu accept Medicare assignment?
Yes. Dr. Richard Shimizu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Richard Shimizu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, lipids (cholesterol and triglycerides) (HCPCS 80061). Source: CMS Medicare Physician & Other Practitioners file.