Doctor profile · Federal record

Dr. Yuichiro Nakai, M.D.

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Santa Rosa, CA

  • NPI 1497739114
  • Accepts Medicare
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1162 Montgomery Dr Ste 300
Santa Rosa, CA 954054802
(707) 890-4250

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
September 23, 2024
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
California #A76178

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1497739114. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
8,124
Distinct HCPCS
8
Medicare allowed
$354,136
HCPCS Description Services Patients Avg allowed
J0897 Injection, denosumab, 1 mg 6,360 59 $23
99214 Established patient office or other outpatient visit, 30-39 minutes 755 477 $139
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 302 164 $36
99215 Established patient office or other outpatient visit, 40-54 minutes 238 166 $192
99213 Established patient office or other outpatient visit, 20-29 minutes 222 189 $99
96372 Injection of drug or substance under skin or into muscle 157 73 $16
99205 New patient office or other outpatient visit, 60-74 minutes 76 76 $236
99204 New patient office or other outpatient visit, 45-59 minutes 14 14 $179

In context: peer comparison

Among 3 peers in this city , average services per provider: 924. This provider delivers 8.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$41
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 2 $41.28

By nature of payment

Food and Beverage
$41

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,321
Patients
698
Total drug cost
$1,223,974
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 618 173 $13,072
Ozempic (Semaglutide) Brand 301 73 $582,922
Liothyronine Sodium Generic 196 55 $12,260
Metformin Hcl Generic 171 54 $2,590
Methimazole Generic 164 52 $4,546
Jardiance (Empagliflozin) Brand 120 39 $180,821
Atorvastatin Calcium Generic 101 33 $1,488
Trulicity (Dulaglutide) Brand 100 30 $206,640
Metformin Hcl Er (Metformin Hcl) Brand 97 38 $2,011
Ultra-Fine Mini Pen Needle (Pen Needle, Diabetic) Brand 85 37 $10,550

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Yuichiro Nakai's medical specialty?
Dr. Yuichiro Nakai practices Endocrinology, Diabetes & Metabolism Physician in Santa Rosa, CA.
Where does Dr. Yuichiro Nakai practice?
Dr. Yuichiro Nakai practices at 1162 Montgomery Dr Ste 300, Santa Rosa, CA 954054802. Office phone: 7078904250.
What is Dr. Yuichiro Nakai's NPI?
Dr. Yuichiro Nakai's National Provider Identifier (NPI) is 1497739114, issued by NPPES.
Does Dr. Yuichiro Nakai accept Medicare assignment?
Yes. Dr. Yuichiro Nakai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Yuichiro Nakai commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.