Doctor profile · Federal record
Dr. Melissa Siew, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Westminster, CA
- NPI 1780096099
- Accepts Medicare
- MIPS 75.3 / 100 · 2023
- 14 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
7955 Westminster Blvd
Westminster, CA 926834001
(714) 379-3221
Credentials & registration
- NPI registered
- May 2014 — 12 yrs on file
- Profile last updated
- September 18, 2015
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A132081
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1780096099. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,951
Distinct HCPCS
10
Medicare allowed
$361,025
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99349 |
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 957 | 84 | $135 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 764 | 104 | $114 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 344 | 134 | $125 | |
99348 |
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | 202 | 15 | $81 | |
99497 |
Advance care planning, first 30 minutes | 156 | 128 | $80 | |
99239 |
Hospital discharge day management, more than 30 minutes | 121 | 108 | $122 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 109 | 99 | $183 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 87 | 81 | $193 | |
99316 |
Nursing facility discharge management, more than 30 minutes | 47 | 42 | $139 | |
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 44 | 37 | $32 |
In context: peer comparison
Among 13 peers in this city , average services per provider: 331. This provider delivers 8.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,449
Patients
272
Total drug cost
$87,639
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 160 | 28 | $2,050 |
| Quetiapine Fumarate | Generic | 151 | 21 | $2,039 |
| Atorvastatin Calcium | Generic | 140 | 25 | $2,271 |
| Eliquis (Apixaban) | Brand | 138 | 34 | $66,751 |
| Furosemide | Generic | 121 | 35 | $588 |
| Metoprolol Tartrate | Generic | 104 | 22 | $752 |
| Gabapentin | Generic | 93 | 16 | $844 |
| Memantine Hcl | Generic | 81 | 13 | $4,832 |
| Potassium Chloride | Generic | 79 | 14 | $1,695 |
| Famotidine | Generic | 71 | 0 | $745 |
Hospital affiliations
Frequently asked questions
What is Dr. Melissa Siew's medical specialty?
Dr. Melissa Siew practices Internal Medicine Physician in Westminster, CA.
Where does Dr. Melissa Siew practice?
Dr. Melissa Siew practices at 7955 Westminster Blvd, Westminster, CA 926834001. Office phone: 7143793221.
What is Dr. Melissa Siew's NPI?
Dr. Melissa Siew's National Provider Identifier (NPI) is 1780096099, issued by NPPES.
Does Dr. Melissa Siew accept Medicare assignment?
Yes. Dr. Melissa Siew accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Melissa Siew commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.