Doctor profile · Federal record

Dr. Stanley Tu, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Pasadena, CA

  • NPI 1215011879
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 23 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
959 E Walnut St, Suite 120
Pasadena, CA 911061451
(626) 795-1831
fax (626) 795-2716

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
July 27, 2012
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A91082

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215011879. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,416
Distinct HCPCS
6
Medicare allowed
$202,971
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 466 245 $194
99213 Established patient office or other outpatient visit, 20-29 minutes 369 211 $98
99214 Established patient office or other outpatient visit, 30-39 minutes 293 208 $139
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 230 230 $140
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 43 41 $16
99204 New patient office or other outpatient visit, 45-59 minutes 15 15 $181

In context: peer comparison

Among 31 peers in Pasadena Internal Medicine Physician, average services per provider: 151. This provider delivers 9.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,036
Transactions
37
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Boehringer Ingelheim Pharmaceuticals, INC. 7 $147.28
Harmony Biosciences LLC 3 $116.87
Grifols USA, LLC 4 $111.87
GlaxoSmithKline, LLC. 5 $95.22
Merck Sharp & Dohme LLC 4 $83.74
Ani Pharmaceuticals, INC. 2 $46.77
Mallinckrodt Hospital Products INC. 2 $46.02
Novo Nordisk INC 2 $38.60
Jazz Pharmaceuticals INC. 1 $37.25
Pulmonx Corporation 2 $35.33
Harmony Biosciences LLC 1 $33.50
Baxter Healthcare 1 $31.01
Avadel CNS Pharmaceuticals, LLC 1 $28.49
Inspire Medical Systems, INC. 1 $24.90
Genzyme Corporation 1 $23.21

By nature of payment

Food and Beverage
$1,036

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,091
Patients
939
Total drug cost
$47,953
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 692 182 $9,380
Amlodipine Besylate Generic 365 108 $3,178
Levothyroxine Sodium Generic 322 81 $6,473
Metformin Hcl Generic 282 76 $3,471
Lisinopril Generic 223 65 $2,931
Losartan Potassium Generic 221 73 $3,884
Omeprazole Generic 166 57 $3,771
Tamsulosin Hcl Generic 136 41 $3,681
Rosuvastatin Calcium Generic 128 41 $5,039
Alprazolam Generic 111 29 $604

Frequently asked questions

Auto-generated from federal data
What is Dr. Stanley Tu's medical specialty?
Dr. Stanley Tu practices Internal Medicine Physician in Pasadena, CA.
Where does Dr. Stanley Tu practice?
Dr. Stanley Tu practices at 959 E Walnut St, Pasadena, CA 911061451. Office phone: 6267951831.
What is Dr. Stanley Tu's NPI?
Dr. Stanley Tu's National Provider Identifier (NPI) is 1215011879, issued by NPPES.
Does Dr. Stanley Tu accept Medicare assignment?
Yes. Dr. Stanley Tu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stanley Tu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.