Katherine Duncan, P.A.-C
NPI 1083978753 · Medical Physician Assistant · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Duncan, P.A.-C is a Medical Physician Assistant provider in Scottsdale, AZ (NPI 1083978753).
Provider details
- NPI number
- 1083978753
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.-C
- Sex
- Female
- Sole proprietor
- No
- License
- 6114 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,990 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 855 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 337 | $74 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 282 | $42 |
| Destruction of Skin Growth, 1-14 Growths17110 | 133 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 123 | $105 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 42 | 35 |
| Ketoconazole | 35 | 23 |
| Hydrocortisone | 33 | 25 |
| Clobetasol Propionate | 28 | 18 |
| Valacyclovir Hclbrand: Valacyclovir | 19 | — |
| Dupilumabbrand: Dupixent Syringe | 13 | — |
| Minoxidil | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,123 across 43 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-06-27
- Last updated
- 2018-06-05
Frequently asked questions
- What is Katherine Duncan's NPI number?
- Katherine Duncan's National Provider Identifier (NPI) is 1083978753, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Duncan's specialty?
- Katherine Duncan is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Duncan located?
- Katherine Duncan's practice location on file with NPPES is 20201 N Scottsdale Healthcare Dr, Scottsdale, AZ 85255.
- What is Katherine Duncan's phone number?
- The practice phone number listed in the NPPES registry for Katherine Duncan is (480) 398-1550.
- Does Katherine Duncan accept Medicare?
- Katherine Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Duncan's NPI active?
- Yes — Katherine Duncan's NPI (1083978753) is active in the NPPES registry as of the last update on 2018-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.