Katharina Abernethy, PA, PTA
NPI 1518039536 · Physician Assistant · Windsor, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharina Abernethy, PA, PTA is a Physician Assistant provider in Windsor, CA (NPI 1518039536).
Provider details
- NPI number
- 1518039536
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA, PTA
- Sex
- Female
- Sole proprietor
- No
- License
- AT 8069 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
38 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 38 | $58 |
Typical Medicare-allowed amounts for these services range $58–$58 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 590 | 580 |
| Pantoprazole Sodium | 95 | 48 |
| Lubiprostone | 68 | 19 |
| Sucralfate | 38 | 14 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 37 | 37 |
| Buspirone Hcl | 20 | — |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 14 | 14 |
Practice location
Mailing address
Additional practice locations (1)
- 2044 Montecito Ave Apt 12Mountain View, CA 94043-4358Phone: (415) 308-3908
Registry dates
- Enumerated
- 2006-11-14
- Last updated
- 2022-05-26
- Certified
- 2022-05-26
Frequently asked questions
- What is Katharina Abernethy's NPI number?
- Katharina Abernethy's National Provider Identifier (NPI) is 1518039536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharina Abernethy's specialty?
- Katharina Abernethy is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katharina Abernethy located?
- Katharina Abernethy's practice location on file with NPPES is 6580 Hembree Ln Ste 270, Windsor, CA 95492-6885.
- What is Katharina Abernethy's phone number?
- The practice phone number listed in the NPPES registry for Katharina Abernethy is (707) 838-2044.
- Does Katharina Abernethy accept Medicare?
- Katharina Abernethy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharina Abernethy's NPI active?
- Yes — Katharina Abernethy's NPI (1518039536) is active in the NPPES registry as of the last update on 2022-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.