Doctor profile · Federal record
Dr. Catherine Willenborg, PAC
Physician Assistant · Surgical Physician Assistant · Scottsdale, AZ
- NPI 1154389153
- Accepts Medicare
- MIPS 72.1 / 100 · 2023
- 21 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
13400 E Shea Blvd
Scottsdale, AZ 852595499
(480) 301-8000 - Additional location
-
2898 Broadway St
San Francisco, CA 941151061
(775) 771-1824 - Additional location
-
8 Woodland RD
St Helena, CA 94574
(775) 771-1824 - Mailing address
-
8601 N Sendero Tres M
Paradise Valley, AZ 852532258
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- August 6, 2025
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State licenses (2)
- Arizona #10627 · Nevada #PA972
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154389153. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
38
Distinct HCPCS
1
Medicare allowed
$2,775
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 38 | 17 | $73 |
In context: peer comparison
Among 117 peers in this city , average services per provider: 422. This provider delivers 0.1× the peer median.Open Payments
Industry payments received
All-time total
$32
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 1 | $31.99 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
199
Patients
174
Total drug cost
$1,395
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Tartrate | Generic | 37 | 23 | $176 |
| Oxycodone Hcl | Generic | 36 | 33 | $204 |
| Furosemide | Generic | 32 | 30 | $59 |
| Potassium Chloride | Generic | 29 | 27 | $176 |
| Amiodarone Hcl | Generic | 20 | 20 | $243 |
| Tramadol Hcl | Generic | 19 | 19 | $94 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 15 | 11 | $184 |
| Colchicine | Generic | 11 | 11 | $258 |
Hospital affiliations
Frequently asked questions
What is Dr. Catherine Willenborg's medical specialty?
Dr. Catherine Willenborg practices Physician Assistant in Scottsdale, AZ.
Where does Dr. Catherine Willenborg practice?
Dr. Catherine Willenborg practices at 13400 E Shea Blvd, Scottsdale, AZ 852595499. Office phone: 4803018000.
What is Dr. Catherine Willenborg's NPI?
Dr. Catherine Willenborg's National Provider Identifier (NPI) is 1154389153, issued by NPPES.
Does Dr. Catherine Willenborg accept Medicare assignment?
Yes. Dr. Catherine Willenborg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Willenborg commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.