Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Daniel C Williams, PHD

Individual provider Clinical Psychologist · NPI 1972696078

Dr. Daniel C Williams, PHD is a Clinical Psychologist in Dover, New Hampshire. Qualified in 1970, 56 years ago. Practices with The Counseling Center of Nashua Inc, a 240-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Hampshire.

Years since qualifying
56
Licensed in
NH
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

16 5th St
Dover, NH 03820-2950
Phone: (603) 749-4462
Fax: (603) 749-2475
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 169 (NH)

Record details

NPI number1972696078
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedOctober 2, 2006
Last updated in NPPESJune 17, 2026
Certification dateJune 17, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1970 (56 years in practice)
Group practice The Counseling Center Of Nashua Inc — 240 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 patients36
Services billed 225 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Colleagues at The Counseling Center of Nashua Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 240 clinicians in the practice; 12 are shown here.

Other providers in Dover