Doctor profile · Federal record
Dr. Cecillia Tsao, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Internal Medicine) · Washington, DC
- NPI 1821101767
- Accepts Medicare
- 38 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
128 M St Nw
Washington, DC 200011205
(202) 854-3840
fax (202) 854-3854 - Mailing address
-
1150 Varnum St Ne
Washington, DC 200172180
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- January 18, 2019
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- District of Columbia #MD034412
- Medicaid (2)
- DC #035300800 · MD #410695400
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821101767. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
73
Distinct HCPCS
1
Medicare allowed
$10,624
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 73 | 30 | $146 |
In context: peer comparison
Among 15 peers in Washington Endocrinology, Diabetes & Metabolism Physician, average services per provider: 98. This provider delivers 0.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
685
Patients
142
Total drug cost
$230,349
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 114 | 38 | $1,264 |
| Amlodipine Besylate | Generic | 90 | 28 | $645 |
| Metformin Hcl | Generic | 81 | 24 | $760 |
| Ozempic (Semaglutide) | Brand | 51 | 14 | $89,448 |
| Gabapentin | Generic | 48 | 12 | $837 |
| Lisinopril | Generic | 44 | 14 | $363 |
| Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) | Brand | 40 | 0 | $28,830 |
| Januvia (Sitagliptin Phosphate) | Brand | 31 | 0 | $38,362 |
| Trulicity (Dulaglutide) | Brand | 30 | 0 | $48,259 |
| Allopurinol | Generic | 29 | 0 | $613 |
Frequently asked questions
What is Dr. Cecillia Tsao's medical specialty?
Dr. Cecillia Tsao practices Endocrinology, Diabetes & Metabolism Physician in Washington, DC.
Where does Dr. Cecillia Tsao practice?
Dr. Cecillia Tsao practices at 128 M St Nw, Washington, DC 200011205. Office phone: 2028543840.
What is Dr. Cecillia Tsao's NPI?
Dr. Cecillia Tsao's National Provider Identifier (NPI) is 1821101767, issued by NPPES.
Does Dr. Cecillia Tsao accept Medicare assignment?
Yes. Dr. Cecillia Tsao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cecillia Tsao commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.