Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Clayton Sean Abeln, MD

Individual provider Emergency Medicine Physician · NPI 1740926633

Clayton Sean Abeln, MD is an Emergency Medicine in Portsmouth, New Hampshire. Graduated from Florida State University College of Medicine in 2022, 4 years ago. Practices with Yale University, a 2,618-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Connecticut and New Hampshire.

Years since qualifying
4
Trained at
Florida State University College of Medicine
Licensed in
CT, NH
In the registry since
2022
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

333 Borthwick Ave
Portsmouth, NH 03801-4198
Phone: (603) 436-5110
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 10 Central Ave, Dover, NH 03820-4020 — (603) 740-1500
  • 11 Whitehall Rd, Rochester, NH 03867-3297 — (603) 332-5211
  • 603 Lafayette Rd, Seabrook, NH 03874-4279 — (603) 474-6400

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 39597 (NH)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 80682 (CT)

Record details

NPI number1740926633
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 12, 2022
Last updated in NPPESJuly 12, 2026
Certification dateJuly 12, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolFLORIDA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2022 (4 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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