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

Mary Beth Lacoy, APRN

Individual provider Family Nurse Practitioner · NPI 1871236026

Mary Beth Lacoy, APRN is a Nurse Practitioner in Somersworth, New Hampshire. Qualified in 2021, 5 years ago. Practices with Wentworth Douglass Physician Corporation, a 431-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
5
Licensed in
NH
In the registry since
2022
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

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Practice location Address checks out

7 Works Way
Somersworth, NH 03878-1639
Phone: (603) 692-4018
Fax: (833) 944-2270
Show map & directions

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

Additional practice locations (2)

  • 2299 Woodbury Ave, Newington, NH 03801-7854 — (603) 436-9100
  • 85 Main St, Somersworth, NH 03878-3111 — (603) 692-0919

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 087843-23 (NH)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 087843 (NH)

Record details

NPI number1871236026
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedApril 15, 2022
Last updated in NPPESMay 25, 2023
Certification dateMay 25, 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

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients84
Services billed 202 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Wentworth Douglass Physician Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 431 clinicians in the practice; 12 are shown here.

Other providers in Somersworth