Doctor profile · Federal record
Dr. Mark Shiu, DO
Family Medicine Physician (CMS: Family Practice) · Rancho Cucamonga, CA
- NPI 1629004478
- Accepts Medicare
- 23 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
7974 Haven Ave, Suite 250
Rancho Cucamonga, CA 917303052
(800) 734-1733
fax (800) 734-1733
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- July 25, 2012
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #20A9372
- Medicaid
- CA #00AX93720
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629004478. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
696
Distinct HCPCS
8
Medicare allowed
$86,790
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 394 | 113 | $131 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 172 | 13 | $125 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 46 | 12 | $81 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 27 | 27 | $133 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 18 | 17 | $15 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 17 | 17 | $133 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $172 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $182 |
In context: peer comparison
Among 18 peers in Rancho Cucamonga Family Medicine Physician, average services per provider: 139. This provider delivers 5.0× the peer median.Open Payments
Industry payments received
All-time total
$1,592
Transactions
64
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 14 | $201.78 | |
| AstraZeneca Pharmaceuticals Lp | 6 | $164.63 | |
| Abbott Laboratories | 8 | $162.94 | |
| Novo Nordisk INC | 8 | $159.21 | |
| Pfizer INC. | 7 | $139.42 | |
| Abiomed | 2 | $86.56 | |
| GlaxoSmithKline, LLC. | 3 | $67.67 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 3 | $61.30 | |
| Phathom Pharmaceuticals, INC. | 2 | $47.23 | |
| Antares Pharma, INC. | 2 | $38.04 | |
| Otsuka America Pharmaceutical, INC. | 2 | $37.98 | |
| Sanofi-Aventis U.S. LLC | 1 | $34.20 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $33.74 | |
| Currax Pharmaceuticals LLC | 2 | $31.47 | |
| Bayer Healthcare Pharmaceuticals INC. | 2 | $31.11 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,647
Patients
585
Total drug cost
$23,386
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 422 | 154 | $5,163 |
| Metformin Hcl | Generic | 130 | 43 | $1,406 |
| Amlodipine Besylate | Generic | 129 | 50 | $1,083 |
| Levothyroxine Sodium | Generic | 123 | 35 | $2,262 |
| Losartan Potassium | Generic | 119 | 44 | $1,592 |
| Lisinopril | Generic | 100 | 36 | $901 |
| Gabapentin | Generic | 96 | 32 | $2,097 |
| Montelukast Sodium | Generic | 82 | 24 | $1,252 |
| Simvastatin | Generic | 80 | 28 | $983 |
| Alendronate Sodium | Generic | 70 | 21 | $1,296 |
Frequently asked questions
What is Dr. Mark Shiu's medical specialty?
Dr. Mark Shiu practices Family Medicine Physician in Rancho Cucamonga, CA.
Where does Dr. Mark Shiu practice?
Dr. Mark Shiu practices at 7974 Haven Ave, Rancho Cucamonga, CA 917303052. Office phone: 8007341733.
What is Dr. Mark Shiu's NPI?
Dr. Mark Shiu's National Provider Identifier (NPI) is 1629004478, issued by NPPES.
Does Dr. Mark Shiu accept Medicare assignment?
Yes. Dr. Mark Shiu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Shiu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.