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Physician Assistants in Portsmouth, NH

Browse 53 Physician Assistant providers listed in NPPES with a practice address in Portsmouth, New Hampshire.

53 Healthcare Providers

How Portsmouth compares with the U.S.

Portsmouth has 235 Physician Assistants per 100,000 residents, 4.8 times the U.S. rate of 49.

That is 53 active Physician Assistants with a practice address in Portsmouth, for a population of 22,545.

The New Hampshire rate is 68 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

93% of Physician Assistants in Portsmouth listed in the CMS Medicare file (43 of 46) accept Medicare assignment. That is similar to the New Hampshire share of 94%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

11% of Physician Assistants in Portsmouth listed in the CMS Medicare file (5 of 46) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the New Hampshire share of 18%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Physician Assistant Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Physician Assistant practitioners in Portsmouth, NH

Source: CMS PECOS
PECOS Enrolled Specialists 51 In Portsmouth, NH
Part B Lab & Imaging Eligible 51 Diagnostic Referrals
DME Ordering Eligible 51 Durable Medical Equipment
Home Health Agency Referrals 51 HHA Ordering Eligible
Showing 1โ€“20 of 53 providers
With recent CMS data first, then Aโ€“Z

Siobhan Maureen Arey , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
330 Borthwick Ave Ste 303, Portsmouth, NH 038017109
Phone: 6034315205
NPI Identifier 1962912428
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Peter G Attenborough , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
875 Greenland Rd, Blg C-4, Portsmouth, NH 038014164
Phone: 6034315529
NPI Identifier 1093895369
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Carolyn Jamie Biba , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
155 Griffin Rd, Portsmouth, NH 038012093
Phone: 6034316011
NPI Identifier 1255859757
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Haley Boles , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
875 Greenland Rd Unit C4, Portsmouth, NH 038014163
Phone: 6034315529
NPI Identifier 1992000780
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Mark Boren , PA

Physician Assistant

Active NPI Status
41 Staysail Way, Portsmouth, NH 038017304
Phone: 6033808070
NPI Identifier 1790324002
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Stephanie T Brewer , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
333 Borthwick Ave, Portsmouth, NH 038017128
Phone: 6034334075
NPI Identifier 1689977266
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Teresa Callahan , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
161 Corporate Dr, Portsmouth, NH 038016825
Phone: 6034315154
NPI Identifier 1699715649
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Jaclyn Heather Carter , PA

Physician Assistant

Active NPI Status
330 Borthwick Ave, Suite 308, Portsmouth, NH 038014174
Phone: 6034315242
NPI Identifier 1760041784
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Matthew Scott Chouinard

Physician Assistant

Active NPI Status Accepts Medicare Assignment
14 Manchester Sq Ste 210, Portsmouth, NH 038017905
Phone: 2074750100
NPI Identifier 1790474237
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Melissa Lynn Connelly , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
599 Lafayette Rd, Portsmouth, NH 038015409
Phone: 6039427900
NPI Identifier 1528418720
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Angela Gay Demien , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
8 Greenleaf Woods Dr, Portsmouth, NH 038015454
Phone: 6037492346
NPI Identifier 1023573268
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Benjamin Gersten

Physician Assistant

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
605 Lafayette Rd, Portsmouth, NH 038014783
Phone: 6036582344
NPI Identifier 1154895951
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Kyungran Gibson , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
330 Borthwick Ave Ste 311, Portsmouth, NH 038017112
Phone: 6036922228
NPI Identifier 1649897372
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Michele A Guilfoyle , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
330 Borthwick Ave, Suite 202w, Portsmouth, NH 038014174
Phone: 6034338434
NPI Identifier 1336133388
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Malcolm Hauthaway , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
330 Borthwick Ave Ste 308, Portsmouth, NH 038017112
Phone: 6034315242
NPI Identifier 1396792156
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Tyler Hayes , PA

Physician Assistant

Active NPI Status Accepts Medicare Assignment
14 Manchester Sq Ste 210, Portsmouth, NH 038017905
Phone: 2074750100
NPI Identifier 1811676729
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Robert S Ketchum , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
330 Borthwick Ave Ste 311, Portsmouth, NH 038017112
Phone: 6036922228
NPI Identifier 1578702197
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Matthew Thomas Kirk , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
333 Borthwick Ave, Portsmouth, NH 038017128
Phone: 6034334890
NPI Identifier 1407311624
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Rebecca Laliberte , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
330 Borthwick Ave Ste 303, Portsmouth, NH 038017109
Phone: 6034315205
NPI Identifier 1316535982
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Jacob Robert Lareau , PA-C

Physician Assistant

Active NPI Status Accepts Medicare Assignment
Sportsmedicine Atlantic Orthopaedics, P.a., 1900 Lafayette Road Suite A, Portsmouth, NH 038010380
Phone: 6034313347
NPI Identifier 1629708110
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Frequently Asked Questions about Physician Assistant in Portsmouth

How do I check a Physician Assistant practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the New Hampshire licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.