Doctor profile · Federal record

Dr. Kaumakaokalani Shimatsu, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Marysville, CA

  • NPI 1194014357
  • Accepts Medicare
  • 15 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
5730 Packard Ave Ste 500
Marysville, CA 959017119
(530) 749-3242
Additional location
55 Maui Lani Pkwy
Wailuku, HI 967932416
(808) 243-6050
Mailing address
1449 Cedarbrook RD
West Sacramento, CA 956915084

Credentials & registration

NPPES · NUCC
NPI registered
March 2011 — 15 yrs on file
Profile last updated
December 11, 2023
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A123592 · Hawaii #H00329654

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194014357. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
126
Distinct HCPCS
5
Medicare allowed
$8,027
HCPCS Description Services Patients Avg allowed
82962 Blood glucose (sugar) test performed by hand-held instrument 37 32 $3
99214 Established patient office or other outpatient visit, 30-39 minutes 32 32 $158
83036 Hemoglobin a1c level 28 28 $10
99213 Established patient office or other outpatient visit, 20-29 minutes 15 14 $113
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 14 14 $64

In context: peer comparison

Among 4 peers in this city , average services per provider: 154. This provider delivers 0.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$21
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Gilead Sciences, Inc. 1 $21.10

By nature of payment

Food and Beverage
$21

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,505
Patients
661
Total drug cost
$116,513
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 202 89 $1,959
Atorvastatin Calcium Generic 201 91 $3,088
Rosuvastatin Calcium Generic 181 78 $4,723
Levothyroxine Sodium Generic 123 52 $2,097
Losartan Potassium Generic 120 53 $1,907
Lisinopril Generic 111 60 $1,381
Pantoprazole Sodium Generic 79 37 $1,533
Gabapentin Generic 72 34 $1,898
Trulicity (Dulaglutide) Brand 72 14 $93,396
Furosemide Generic 62 19 $345

Frequently asked questions

Auto-generated from federal data
What is Dr. Kaumakaokalani Shimatsu's medical specialty?
Dr. Kaumakaokalani Shimatsu practices Internal Medicine Physician in Marysville, CA.
Where does Dr. Kaumakaokalani Shimatsu practice?
Dr. Kaumakaokalani Shimatsu practices at 5730 Packard Ave Ste 500, Marysville, CA 959017119. Office phone: 5307493242.
What is Dr. Kaumakaokalani Shimatsu's NPI?
Dr. Kaumakaokalani Shimatsu's National Provider Identifier (NPI) is 1194014357, issued by NPPES.
Does Dr. Kaumakaokalani Shimatsu accept Medicare assignment?
Yes. Dr. Kaumakaokalani Shimatsu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kaumakaokalani Shimatsu commonly perform?
Top Medicare-reported procedures in 2023: Blood glucose (sugar) test performed by hand-held instrument (HCPCS 82962); Established patient office or other outpatient visit (HCPCS 99214); Hemoglobin a1c level (HCPCS 83036). Source: CMS Medicare Physician & Other Practitioners file.