Katherine Sonia, PA-C
NPI 1578235859 · Physician Assistant · Lynn, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Sonia, PA-C is a Physician Assistant provider in Lynn, MA (NPI 1578235859).
Provider details
- NPI number
- 1578235859
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA9088 (MA)
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 tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
593 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 | 271 | $60 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 262 | $88 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 29 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 17 | $129 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 14 | $100 |
Typical Medicare-allowed amounts for these services range $15–$129 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 28 | 27 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 27 | 23 |
| Fluticasone Propionate | 21 | 18 |
| Mupirocin | 18 | 18 |
| Prednisone | 18 | 15 |
| Doxycycline Monohydrate | 15 | 13 |
| Cephalexin | 14 | 14 |
| Nitrofurantoin Monohyd/M-Cryst |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-10-04
- Last updated
- 2026-04-22
- Certified
- 2026-04-22
Frequently asked questions
- What is Katherine Sonia's NPI number?
- Katherine Sonia's National Provider Identifier (NPI) is 1578235859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Sonia's specialty?
- Katherine Sonia is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Sonia located?
- Katherine Sonia's practice location on file with NPPES is 269 Union St, Lynn, MA 01901-1314.
- What is Katherine Sonia's phone number?
- The practice phone number listed in the NPPES registry for Katherine Sonia is (781) 581-3900.
- Does Katherine Sonia accept Medicare?
- Katherine Sonia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Sonia's NPI active?
- Yes — Katherine Sonia's NPI (1578235859) is active in the NPPES registry as of the last update on 2026-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.