Doctor profile · Federal record
Dr. Katherine Duncan, M.D.
Obesity Medicine (Internal Medicine) Physician · Internal Medicine Physician · Phoenix, AZ
- NPI 1366762650
- 16 yrs on file
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
3811 E Bell RD Ste 300
Phoenix, AZ 85032
(480) 454-7350
fax (602) 569-1035
Credentials & registration
- NPI registered
- June 2010 — 16 yrs on file
- Profile last updated
- June 4, 2018
- Specialty taxonomy
- 207RB0002X — NUCC code
- State license (1)
- Arizona #47650
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366762650. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
135
Distinct HCPCS
2
Medicare allowed
$17,131
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 96 | 35 | $114 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 39 | 39 | $158 |
In context: peer comparison
Among 1 peers in Phoenix Obesity Medicine (Internal Medicine) Physician, average services per provider: 67. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$92,479
Transactions
158
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 118 | $66,214.15 | |
| Novo Nordisk INC | 29 | $26,059.40 | |
| Amgen INC. | 4 | $72.79 | |
| Globus Medical, INC. | 2 | $32.57 | |
| Eisai INC. | 1 | $22.09 | |
| Medtronic, INC. | 1 | $21.87 | |
| Hologic Sales and Service, LLC | 1 | $20.35 | |
| Pfizer INC. | 1 | $20.24 | |
| Abbott Laboratories | 1 | $15.74 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
210
Patients
86
Total drug cost
$219,569
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ozempic (Semaglutide) | Brand | 157 | 63 | $218,971 |
| Topiramate | Generic | 21 | 12 | $233 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 18 | 11 | $276 |
| Ondansetron Odt (Ondansetron) | Brand | 14 | 0 | $89 |
Frequently asked questions
What is Dr. Katherine Duncan's medical specialty?
Dr. Katherine Duncan practices Obesity Medicine (Internal Medicine) Physician in Phoenix, AZ.
Where does Dr. Katherine Duncan practice?
Dr. Katherine Duncan practices at 3811 E Bell RD Ste 300, Phoenix, AZ 85032. Office phone: 4804547350.
What is Dr. Katherine Duncan's NPI?
Dr. Katherine Duncan's National Provider Identifier (NPI) is 1366762650, issued by NPPES.
What procedures does Dr. Katherine Duncan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.