Doctor profile · Federal record
Dr. Willem van der Werf, M.D.
Transplant Surgery Physician (CMS: General Surgery) · Specialist · Phoenix, AZ
- NPI 1275563397
- Accepts Medicare
- 38 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2218 N 3Rd St
Phoenix, AZ 850041401
(602) 252-2543
fax (602) 252-3861 - Additional location
-
500 W Thomas RD Ste 300
Phoenix, AZ 850134294
(602) 406-8000
fax (602) 406-3111
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- November 12, 2024
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 204F00000X — NUCC code
- State licenses (2)
- Arizona #49927 · Utah #5249271205
- Medicaid (2)
- WY #119626000 · ID #806894300
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275563397. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
102
Distinct HCPCS
3
Medicare allowed
$11,360
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 72 | 29 | $76 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 19 | 19 | $213 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $168 |
In context: peer comparison
Among 2 peers in Phoenix Transplant Surgery Physician, average services per provider: 32. This provider delivers 3.2× the peer median.Open Payments
Industry payments received
All-time total
$3,338
Transactions
6
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 3 | $3,041.04 | |
| Paragonix Technologies, INC. | 2 | $283.37 | |
| Ethicon US, LLC | 1 | $13.25 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Willem van der Werf's medical specialty?
Dr. Willem van der Werf practices Transplant Surgery Physician in Phoenix, AZ.
Where does Dr. Willem van der Werf practice?
Dr. Willem van der Werf practices at 2218 N 3Rd St, Phoenix, AZ 850041401. Office phone: 6022522543.
What is Dr. Willem van der Werf's NPI?
Dr. Willem van der Werf's National Provider Identifier (NPI) is 1275563397, issued by NPPES.
Does Dr. Willem van der Werf accept Medicare assignment?
Yes. Dr. Willem van der Werf accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Willem van der Werf commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); New patient office or other outpatient visit (HCPCS 99205); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.