Dr. Thomas Chen, MD
Nephrology (Kidney) (Nephrology Physician)
3288 Moanalua Rd
Honolulu, HI 96819
Who else practices at this address →
Honolulu County includes primary care (9% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 27
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 54
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Nephrology Physician primary
HI license MD-12251
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Kaiser Foundation Hospital Honolulu, HI
Medical groups
- Hawaii Permanente Medical Group Inc (704 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 54
- Services billed
- 150
- Patients’ average age
- 62
| Service | Times | Patients |
|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 84 | 22 |
| Telephone medical discussion with physician, 21-30 minutes | 33 | 19 |
| Dialysis services, 1 physician visit per month (20 years or older) | 21 | 11 |
| Telephone medical discussion with physician, 11-20 minutes | 14 | 13 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Sevelamer Carbonate Other prescribers in Honolulu, HI | 184 |
| Losartan Potassium Other prescribers in Honolulu, HI | 177 |
| Allopurinol Other prescribers in Honolulu, HI | 80 |
| Amlodipine Besylate Other prescribers in Honolulu, HI | 72 |
| Furosemide Other prescribers in Honolulu, HI | 68 |
| Jardiance (empagliflozin) Other prescribers in Honolulu, HI | 57 |
| Lidocaine-Prilocaine (lidocaine/prilocaine) Other prescribers in Honolulu, HI | 55 |
| Prednisone Other prescribers in Honolulu, HI | 48 |
| Lisinopril Other prescribers in Honolulu, HI | 45 |
| Atorvastatin Calcium Other prescribers in Honolulu, HI | 44 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 5 companies reported 5 payments worth $510 in total to this clinician.
| Apellis Pharmaceuticals, Inc. | $137 |
|---|---|
| Novartis Pharmaceuticals Corporation | $133 |
| Sanofi-aventis U.S. LLC | $112 |
| Bayer HealthCare Pharmaceuticals Inc. | $84.10 |
| Iovance Biotherapeutics, Inc. | $43.45 |
| Food and Beverage | $510 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.