Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Richard Matthew Williams, APRN, PMHNP-BC

Individual provider Critical Care Medicine Registered Nurse · NPI 1427634229

Richard Matthew Williams, APRN, PMHNP-BC is a Nurse Practitioner in Manchester, New Hampshire. Qualified in 2022, 4 years ago. Practices with The Mental Health Center of Greater Manchester, a 87-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts and New Hampshire.

Years since qualifying
4
Licensed in
MA, NH
In the registry since
2021
Specialties on file
4
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

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Practice location Address checks out

2 Wall St
Manchester, NH 03101-1518
Phone: (603) 668-4111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 234 Littleton Rd Ste 1b, Westford, MA 01886-3530 — (603) 377-3951

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 067552-23 (NH)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 067552-21 (NH)
Psychiatric/Mental Health Registered Nurse Taxonomy 163WP0808X · Licence 067552-21 (NH)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence RN10039855 (MA)

Record details

NPI number1427634229
Entity typeIndividual (Type 1)
GenderMale
Credentials APRN , PMHNP-BC
Sole proprietorNo
NPI enumeratedMarch 22, 2021
Last updated in NPPESMarch 27, 2026
Certification dateMarch 27, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice The Mental Health Center Of Greater Manchester — 87 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients166
Services billed 530 a service is one billed item, such as a visit, a test or a procedure
Average patient age54

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,823 37 payments · a meal or drink at a meeting or visit, not a fee
Education $100 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The Mental Health Center of Greater Manchester

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 87 clinicians in the practice; 12 are shown here.

Other providers in Manchester