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

Alyssa Koelker, APRN

Individual provider Family Nurse Practitioner · NPI 1255083879

Alyssa Koelker, APRN is a Nurse Practitioner in Rochester, New Hampshire. Qualified in 2021, 5 years ago. Practices with Wentworth Douglass Physician Corporation, a 431-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
5
Licensed in
NH
In the registry since
2022
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

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Practice location Address checks out

11 Whitehall Rd
Rochester, NH 03867-3226
Phone: (603) 994-7600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 789 Central Ave, Dover, NH 03820-2526 — (603) 740-2503

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 087022-23 (NH)

Record details

NPI number1255083879
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedJanuary 25, 2022
Last updated in NPPESOctober 31, 2023
Certification dateOctober 31, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Wentworth Douglass Physician Corporation — 431 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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