Katherin Sonneborn, PA
NPI 1881901718 · Physician Assistant · Exeter, NH
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherin Sonneborn, PA is a Physician Assistant provider in Exeter, NH (NPI 1881901718).
Provider details
- NPI number
- 1881901718
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 1029 (NH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
143 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 77 | $66 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 48 | $109 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 18 | $77 |
Typical Medicare-allowed amounts for these services range $66–$109 (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.
Practice location
Mailing address
Additional practice locations (2)
- 55 Fruit StBoston, MA 02114-2696Phone: (617) 726-2000
- 100 Hitchcock WayDartmouth Hitchcock - General SurgeryManchester, NH 03104Phone: (603) 695-2722
Registry dates
- Enumerated
- 2010-09-14
- Last updated
- 2025-12-12
- Certified
- 2025-12-12
Frequently asked questions
- What is Katherin Sonneborn's NPI number?
- Katherin Sonneborn's National Provider Identifier (NPI) is 1881901718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherin Sonneborn's specialty?
- Katherin Sonneborn is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherin Sonneborn located?
- Katherin Sonneborn's practice location on file with NPPES is 3 Alumni Dr Ste 301, Exeter, NH 03833-2123.
- What is Katherin Sonneborn's phone number?
- The practice phone number listed in the NPPES registry for Katherin Sonneborn is (603) 775-7405.
- Does Katherin Sonneborn accept Medicare?
- Katherin Sonneborn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherin Sonneborn's NPI active?
- Yes — Katherin Sonneborn's NPI (1881901718) is active in the NPPES registry as of the last update on 2025-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.