Dr. Duc H. Phan, M.D
Internal Medicine (Internal Medicine Physician)
- Medicare participating
At a glance
- Medical school
- George Washington University School of Medicine (2008)
- Years since graduation
- 18
- In the NPI registry since
- 2010
- Medicare patients seen, 2024
- 266
Licensed in California since 2010, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
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. What an NPI is
Education and training
- 2008Medical school: George Washington University School of Medicine
- 2010Registered with an NPI (national billing number; not a license date)
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
-
Internal Medicine Physician primary
TX license P2340 (first issued 2012; active) · CA license A111050 (first issued 2010; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Memorial Hermann Hospital System Houston, TX
- Houston Methodist Sugarland Hospital Sugar Land, TX
- Memorial Hermann Sugar Land Hospital Sugar Land, TX
- HCA Houston Healthcare West Houston, TX
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
- 266
- Services billed
- 2,922
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 938 | 246 |
| Established patient office or other outpatient visit, 20-29 minutes | 344 | 157 |
| Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow | 167 | 31 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 131 | 131 |
| Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus | 100 | 70 |
| Administration of influenza virus vaccine | 95 | 86 |
| Influenza vaccine split virus, preservative free | 94 | 85 |
| Injection of additional new drug or substance into vein | 87 | 20 |
| Advance care planning, first 30 minutes | 87 | 81 |
| Advance care planning, each additional 30 minutes | 87 | 81 |
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
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, 18 companies reported 201 payments worth $3,193 in total to this clinician.
| Food and Beverage | $3,193 |
|---|
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.