Doctor profile · Federal record

Dr. KWAN TAN, M.D.

Internal Medicine Physician (CMS: INTERNAL MEDICINE) · LA PALMA, CA

  • NPI 1013099746
  • Accepts Medicare
  • 36 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
7872 WALKER ST
LA PALMA, CA 906231796
(714) 527-8777
fax (714) 527-8990
Mailing address
13561 YORBA ST
SANTA ANA, CA 927051869

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
July 7, 2016
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #G74232
Medicaid (3)
CA #00G742320 · CA #GR0061200 · CA #GR0061190

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013099746. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,403
Distinct HCPCS
10
Medicare allowed
$118,144
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 488 234 $99
99214 Established patient office or other outpatient visit, 30-39 minutes 350 179 $139
81002 Urinalysis, manual test 165 94 $3
82962 Blood glucose (sugar) test performed by hand-held instrument 100 52 $3
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 88 88 $139
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 46 43 $16
G0008 Administration of influenza virus vaccine 38 37 $33
90662 Influenza vaccine split virus, preservative free 34 34 $72
99212 Established patient office or other outpatient visit, 10-19 minutes 25 24 $39
71046 X-ray of chest, 2 views 21 21 $39

In context: peer comparison

Among 3 peers in this city , average services per provider: 90. This provider delivers 16× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,881
Transactions
85
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 10 $1,038.28
Lilly USA, LLC 11 $358.71
GlaxoSmithKline, LLC. 3 $348.22
ABBVIE INC. 8 $238.34
Gilead Sciences, Inc. 5 $237.56
Amgen Inc. 13 $228.31
Boehringer Ingelheim Pharmaceuticals, Inc. 4 $165.11
Phathom Pharmaceuticals, Inc. 3 $163.78
PFIZER INC. 9 $155.62
Abbott Laboratories 1 $150.52
IDORSIA PHARMACEUTICALS US INC 3 $147.32
Radius Health, Inc. 7 $139.24
Merck Sharp & Dohme LLC 2 $125.11
Otsuka America Pharmaceutical, Inc. 1 $125.00
Novartis Pharmaceuticals Corporation 5 $94.95

By nature of payment

Food and Beverage
$3,875
Travel and Lodging
$6

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,548
Patients
1,104
Total drug cost
$60,091
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 625 198 $10,912
Losartan Potassium Generic 558 179 $9,884
Amlodipine Besylate Generic 454 140 $5,162
Metformin Hcl Generic 305 92 $4,094
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 236 38 $5,534
Lisinopril Generic 178 50 $2,276
Levothyroxine Sodium Generic 165 48 $3,488
Hydrochlorothiazide Generic 159 52 $837
Rosuvastatin Calcium Generic 137 42 $4,914
Tamsulosin Hcl Generic 137 43 $2,839