Diana Mcfarlane, PA-C
NPI 1336113885 · Medical Physician Assistant · Seattle, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Mcfarlane, PA-C is a Medical Physician Assistant provider in Seattle, WA (NPI 1336113885).
Provider details
- NPI number
- 1336113885
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA10004893 (WA)
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
20 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
407 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 148 | $162 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 101 | $120 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 45 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 44 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 34 | $85 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 114 | 40 |
| Linaclotidebrand: Linzess | 112 | 26 |
| Ondansetronbrand: Ondansetron Odt | 94 | 28 |
| Promethazine Hcl | 81 | 15 |
| Dicyclomine Hcl | 61 | 18 |
| Lipase/Protease/Amylasebrand: Creon | 57 | 12 |
| Pantoprazole Sodium | 51 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$45,509 across 42 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
- 2006-02-13
- Last updated
- 2012-12-31
Frequently asked questions
- What is Diana Mcfarlane's NPI number?
- Diana Mcfarlane's National Provider Identifier (NPI) is 1336113885, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Mcfarlane's specialty?
- Diana Mcfarlane is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Diana Mcfarlane located?
- Diana Mcfarlane's practice location on file with NPPES is 1100 9th Ave, Seattle, WA 98101-2756.
- What is Diana Mcfarlane's phone number?
- The practice phone number listed in the NPPES registry for Diana Mcfarlane is (206) 223-2319.
- Does Diana Mcfarlane accept Medicare?
- Diana Mcfarlane is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Mcfarlane's NPI active?
- Yes — Diana Mcfarlane's NPI (1336113885) is active in the NPPES registry as of the last update on 2012-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.