Dr. Danwen Yang
Nephrology (Kidney) (Nephrology Physician)
- Medicare participating
At a glance
- Years since graduation
- 15
- In the NPI registry since
- 2014
- Medicare patients seen, 2024
- 217
Licensed in Connecticut since 2019, according to the Connecticut Department of Public Health. 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
- 2014Registered with an NPI (national billing number; not a license date)
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
CT license 62666 (first issued 2019; active in renewal)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Yale-New Haven Hospital New Haven, CT
Medical groups
- Northeast Medical Group Inc (1,360 clinicians)
- Metabolism Associates PC (9 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
- 217
- Services billed
- 818
- Patients’ average age
- 73
| Service | Times | Patients |
|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 262 | 120 |
| Hemodialysis procedure with physician evaluation | 153 | 46 |
| Established patient office or other outpatient visit, 30-39 minutes | 95 | 52 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 68 | 63 |
| Dialysis services, 2-3 physician visits per month (20 years or older) | 63 | 25 |
| Dialysis services, 4 or more physician visits per month (20 years or older) | 46 | 14 |
| New patient office or other outpatient visit, 45-59 minutes | 21 | 21 |
| Established patient office or other outpatient visit, 20-29 minutes | 21 | 17 |
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 |
|---|---|
| Farxiga (dapagliflozin propanediol) Other prescribers in Bridgeport, CT | 137 |
| Amlodipine Besylate Other prescribers in Bridgeport, CT | 48 |
| Sevelamer Carbonate Other prescribers in Bridgeport, CT | 46 |
| Losartan Potassium Other prescribers in Bridgeport, CT | 45 |
| Hydrochlorothiazide Other prescribers in Bridgeport, CT | 25 |
| Torsemide Other prescribers in Bridgeport, CT | 23 |
| Allopurinol Other prescribers in Bridgeport, CT | 22 |
| Jardiance (empagliflozin) Other prescribers in Bridgeport, CT | 18 |
| Hydralazine Hcl Other prescribers in Bridgeport, CT | 17 |
| Carvedilol Other prescribers in Bridgeport, CT | 17 |
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, 20 companies reported 64 payments worth $1,487 in total to this clinician.
| Travere Therapeutics, Inc. | $200 |
|---|---|
| Amgen Inc. | $151 |
| Novo Nordisk Inc | $116 |
| Akebia Therapeutics Inc | $113 |
| Ardelyx, Inc. | $111 |
| Calliditas Therapeutics US Inc. | $104 |
| AstraZeneca Pharmaceuticals LP | $97.17 |
| Mallinckrodt Hospital Products Inc. | $87.19 |
| Food and Beverage | $1,485 |
|---|---|
| Education | $2.77 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Travere Therapeutics, Inc. Nov 7, 2025 | Education Filspari · Kidney Disease · in-kind | $2.38 |
| Travere Therapeutics, Inc. Nov 7, 2025 | Education Filspari · Kidney Disease · in-kind | $0.39 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
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.