Doctor profile · Federal record
Dr. Patrick Siaw, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Buffalo, NY
- NPI 1922039213
- Accepts Medicare
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2157 Main St
Buffalo, NY 142142648
(716) 862-1984
fax (716) 862-1891
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- December 7, 2011
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- New York #211163
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922039213. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
702
Distinct HCPCS
6
Medicare allowed
$79,243
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 319 | 71 | $102 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 195 | 33 | $102 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 78 | 72 | $175 | |
99305 |
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 59 | 58 | $128 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 27 | 19 | $71 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 24 | 15 | $147 |
In context: peer comparison
Among 72 peers in Buffalo Internal Medicine Physician, average services per provider: 88. This provider delivers 8.0× the peer median.Open Payments
Industry payments received
All-time total
$71
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Otsuka America Pharmaceutical, INC. | 1 | $70.69 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
5,233
Patients
580
Total drug cost
$174,354
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 512 | 53 | $4,456 |
| Eliquis (Apixaban) | Brand | 494 | 41 | $119,125 |
| Potassium Chloride | Generic | 454 | 53 | $18,358 |
| Atorvastatin Calcium | Generic | 449 | 63 | $4,119 |
| Furosemide | Generic | 412 | 48 | $2,639 |
| Pantoprazole Sodium | Generic | 406 | 44 | $3,244 |
| Amlodipine Besylate | Generic | 377 | 46 | $2,303 |
| Tamsulosin Hcl | Generic | 360 | 31 | $3,326 |
| Metoprolol Succinate | Generic | 293 | 42 | $3,156 |
| Duloxetine Hcl | Generic | 290 | 25 | $3,593 |
Hospital affiliations
Frequently asked questions
What is Dr. Patrick Siaw's medical specialty?
Dr. Patrick Siaw practices Internal Medicine Physician in Buffalo, NY.
Where does Dr. Patrick Siaw practice?
Dr. Patrick Siaw practices at 2157 Main St, Buffalo, NY 142142648. Office phone: 7168621984.
What is Dr. Patrick Siaw's NPI?
Dr. Patrick Siaw's National Provider Identifier (NPI) is 1922039213, issued by NPPES.
Does Dr. Patrick Siaw accept Medicare assignment?
Yes. Dr. Patrick Siaw accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patrick Siaw commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.