Doctor profile · Federal record
Dr. Chi Chang Siao, MD
Internal Medicine Physician (CMS: Internal Medicine) · Milton, MA
- NPI 1083880538
- Accepts Medicare
- 28 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
199 Reedsdale RD
Milton, MA 021863926
(617) 754-0744
Credentials & registration
- NPI registered
- May 2008 — 18 yrs on file
- Profile last updated
- May 13, 2009
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #234953
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083880538. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
371
Distinct HCPCS
4
Medicare allowed
$44,847
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 179 | 96 | $126 | |
99239 |
Hospital discharge day management, more than 30 minutes | 118 | 113 | $123 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 59 | 30 | $84 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 15 | 15 | $184 |
In context: peer comparison
Among 8 peers in Milton Internal Medicine Physician, average services per provider: 135. This provider delivers 2.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
31
Patients
15
Total drug cost
$270
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Succinate | Generic | 16 | 0 | $216 |
| Prednisone | Generic | 15 | 15 | $55 |
Frequently asked questions
What is Dr. Chi Chang Siao's medical specialty?
Dr. Chi Chang Siao practices Internal Medicine Physician in Milton, MA.
Where does Dr. Chi Chang Siao practice?
Dr. Chi Chang Siao practices at 199 Reedsdale RD, Milton, MA 021863926. Office phone: 6177540744.
What is Dr. Chi Chang Siao's NPI?
Dr. Chi Chang Siao's National Provider Identifier (NPI) is 1083880538, issued by NPPES.
Does Dr. Chi Chang Siao accept Medicare assignment?
Yes. Dr. Chi Chang Siao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chi Chang Siao commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.