Katherin Adriana Sonneborn, PA
Physician Assistant · Exeter, NH
Katherin Adriana Sonneborn, PA is a physician assistant with a practice address in Exeter, New Hampshire, and NPI 1881901718, issued on Sep 14, 2010. Check the license (New Hampshire 1029, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherin Adriana Sonneborn
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 1029 NH
PA101126 MA
Self-reported in NPPES; status is on the state search - Practice location
- 3 Alumni Dr Ste 301, Exeter, NH 03833
- Phone
- (603) 775-7405
- Enumerated
- Sep 14, 2010
- Record last updated
- Dec 12, 2025
- Fax
- (603) 775-7424
- Medicaid ID
- 3097987 NH
- Medicare enrollment
- Enrolled (PECOS I20140728001523); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 3 Alumni Dr Ste 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shea Ahern, ARNPNurse Practitioner1841985645
- John Brennan, MDPulmonary Disease Physician1851339071
- Paul Deranian, MDPulmonary Disease Physician1154381374
- Lauren DubePhysician Assistant1881588598
- Rebecca Gamester, P.A.Surgical Physician Assistant1629220595
- Robert Henley, MDSurgery Physician1508098237
Verify Katherin Adriana Sonneborn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 1029Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average physician assistant in 2024
40 Medicare Part D claims for 24 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 83.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Core Physicians LLCExeter, NH
- Massachusetts General Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
22 physician assistant records list a practice address in Exeter
They are 22 of the 704 NPPES records with a practice address in Exeter, and 947 physician assistant records in New Hampshire.
All 22 in Exeter → All 947 in New Hampshire → Every provider in Exeter →
Other physician assistant records in New Hampshire
- Micala Abbiati, PA-CBedford, NH1437702123
- Robin Abeles, PA-CNorth Conway, NH1285119875
- Maud AbessNew London, NH1174715452
- Rosemarie Addante, PA-CLebanon, NH1356846752
- Anna Adler, PA-CLebanon, NH1578216677
- Lisa Ahava, PAChesterfield, NH1487693453
- Ssara AhmmedManchester, NH1144140138
- Liliana Rose Akin, PA-S2Manchester, NH1205793551
- Matthew Alexander, PHD, PA-SLebanon, NH1548721517
- David Allen, PANashua, NH1952337982
Common questions
What is Katherin Adriana Sonneborn, PA's NPI number?
Katherin Adriana Sonneborn, PA's National Provider Identifier (NPI) is 1881901718, issued on Sep 14, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Katherin Adriana Sonneborn, PA located?
The NPPES record lists a practice address at 3 Alumni Dr Ste 301, Exeter, NH, 03833. Phone: (603) 775-7405. Providers update this record themselves, so call before visiting.
How can I verify Katherin Adriana Sonneborn, PA's license?
NPPES lists New Hampshire license number 1029, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Katherin Adriana Sonneborn, PA prescribe under Medicare Part D?
In 2024, Katherin Adriana Sonneborn, PA had 40 Medicare Part D claims for 24 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Katherin Adriana Sonneborn, PA's MIPS final score?
The 2023 MIPS final score is 83.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.