Doctor profile · Federal record
Dr. Zsu-Zsu Chen, M.D.
Internal Medicine Physician (CMS: Endocrinology) · Internal Medicine Physician · Boston, MA
- NPI 1336589142
- Accepts Medicare
- 13 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
330 Brookline Ave
Boston, MA 02215
(617) 667-9344
fax (617) 667-7060 - Additional location
-
1 Joslin Pl
Boston, MA 022155306
(617) 309-2400
Credentials & registration
- NPI registered
- June 2013 — 13 yrs on file
- Profile last updated
- September 3, 2019
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Massachusetts #279783 · Massachusetts #256113
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336589142. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
109
Distinct HCPCS
4
Medicare allowed
$11,211
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 56 | 21 | $84 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 29 | 28 | $104 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 12 | 11 | $153 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 12 | 12 | $138 |
In context: peer comparison
Among 547 peers in Boston Internal Medicine Physician, average services per provider: 81. This provider delivers 1.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
101
Patients
16
Total drug cost
$3,771
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 56 | 16 | $605 |
| Synthroid (Levothyroxine Sodium) | Brand | 29 | 0 | $2,953 |
| Alendronate Sodium | Generic | 16 | 0 | $214 |
Frequently asked questions
What is Dr. Zsu-Zsu Chen's medical specialty?
Dr. Zsu-Zsu Chen practices Internal Medicine Physician in Boston, MA.
Where does Dr. Zsu-Zsu Chen practice?
Dr. Zsu-Zsu Chen practices at 330 Brookline Ave, Boston, MA 02215. Office phone: 6176679344.
What is Dr. Zsu-Zsu Chen's NPI?
Dr. Zsu-Zsu Chen's National Provider Identifier (NPI) is 1336589142, issued by NPPES.
Does Dr. Zsu-Zsu Chen accept Medicare assignment?
Yes. Dr. Zsu-Zsu Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Zsu-Zsu Chen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.