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General surgeons who accept Medicare in Portsmouth, NH
CMS lists 15 clinicians in this specialty with a practice address in Portsmouth. Accept Medicare assignment (the Medicare-approved amount as full payment): 9. Offer telehealth: 3.
Typical amounts Medicare approves in ZIP 03801 (2024 Medicare rates, the latest CMS has published): a new-patient visit $89, of which you pay about $22; a follow-up visit $72, of which you pay about $18 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Jay W. Swett, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.4/100Graduated 1994 · Duke University School of MedicineMaleDrug and device company payments (2025): $686Molly B. Amend, MD
✓ Accepts Medicare assignmentGraduated 1994 · University of Michigan Medical SchoolFemaleDrug and device company payments (2025): $42Dawn C. Barclay, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2005 · Harvard Medical SchoolFemaleNadeem Haddad, MD
✓ Accepts Medicare assignmentGraduated 2013MaleDrug and device company payments (2025): $3,000Victor C. Kim, MD
✓ Accepts Medicare assignmentGraduated 2013 · Drexel University College of MedicineMaleDrug and device company payments (2025): $159Natasha Saiyed, MD
✓ Accepts Medicare assignmentGraduated 2013FemaleDrug and device company payments (2025): $173Ritoban Sen, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2008MaleOther offices in Portsmouth: 1Drug and device company payments (2025): $1,655Timothy M. Sherry, MD
✓ Accepts Medicare assignmentGraduated 1985 · Clvlnd Clinic Lerner College of Med of Case Wstn RSV UniversityMaleLauren Thompson, MD
✓ Accepts Medicare assignmentGraduated 2012 · Georgetown University School of MedicineFemaleDylan F. Davey, MD
May accept assignmentMIPS score (2024): 97/100Graduated 2014 · Yale University School of MedicineFemaleJonathan Eldor, MD
May accept assignmentGraduated 2012 · State University of New York at Buffalo School of MedicineMaleDrug and device company payments (2025): $698Rafael J. Grossman, MD
May accept assignmentGraduated 1991MaleRichard J. King, MD
May accept assignmentGraduated 1995 · New York Medical CollegeMaleMark E. Kromer, MD
May accept assignmentGraduated 2003 · Medical College of WisconsinMaleJessica J. Swanson, MD
May accept assignment✓ TelehealthGraduated 2003 · University of Colorado School of Medicine, DenverFemaleDrug and device company payments (2025): $5,577
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in Portsmouth
- Primary care doctors82
- Nurse practitioners124
- Cardiologists27
- Dermatologists12
- Orthopedic surgeons14
- Neurologists13
- Gastroenterologists4
- Ophthalmologists13
- Optometrists8
- Podiatrists6
- Urologists3
- Pulmonologists6
- Nephrologists4
- ENT doctors7
- Oncologists25
- Psychiatrists21
- Psychologists23
- Therapists and counselors86
- Physical therapists37
- Occupational therapists3
- Audiologists11
- Chiropractors17
- Gynecologists27
- Vascular surgeons5
- Pain management doctors3
- Physiatrists16
- Allergists3
- Dietitians4
- Neurosurgeons5
- Infectious disease doctors3
Other care in Portsmouth
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).