Martin R. Williams
Physical Therapist · Somersworth, NH
Martin R. Williams is a physical therapist with a practice address in Somersworth, New Hampshire, and NPI 1679047997, issued on Jan 21, 2019. Check the license (New Hampshire 4468, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Martin R. Williams
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- 4468 NH
Self-reported in NPPES; status is on the state search - Practice location
- 7 Works Way Unit 205, Somersworth, NH 03878
- Phone
- (603) 841-5441
- Enumerated
- Jan 21, 2019
- Record last updated
- Jan 21, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (603) 841-5630
- Medicare enrollment
- Enrolled (PECOS I20200812000917); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 1,663 in New Hampshire → Look up another NPI →
Also registered at 7 Works Way Unit 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison FairbairnPhysical Therapist1285407056
- James Kennedy, PT, DPTPhysical Therapist1811426356
- Megan Marasca, DPTPhysical Therapist1548197072
- Lucas Martin, PTPhysical Therapist1407909260
- Katherine RolfePhysical Therapist1386223097
- Kirsten SjogrenPhysical Therapist1124700828
Verify Martin R. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 4468Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Maine Strong Physical Therapy PASaco, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Martin R. Williams among 1,663 physical therapist records in New Hampshire
Martin R. Williams is one of 1,663 physical therapist records with a practice address in New Hampshire. 22% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 76% of them.
- NPI issued2019 · 76% of these records are older, 20% newer
- In a Medicare fileYes · 22% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated2018 · median 2012 among the 404 with a school on file
- Record last updated2019 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 physical therapist records list a practice address in Somersworth
They are 40 of the 333 NPPES records with a practice address in Somersworth, and 1,663 physical therapist records in New Hampshire.
All 1,663 in New Hampshire → Every provider in Somersworth → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- David AbbettSomersworth, NH 038781699828228
- C. BournSomersworth, NH 038781598818130
- Robert KohSomersworth, NH 038781518026988
- Karen KrochinaSomersworth, NH 038781811055510
- John LauzeSomersworth, NH 038781033262662
- Lucas Martin, PTSomersworth, NH 038781407909260
- Richard McAvoySomersworth, NH 038781245383850
- Nicole McManus, PTSomersworth, NH 038781750486064
Common questions
What is Martin R. Williams's NPI number?
Martin R. Williams's National Provider Identifier (NPI) is 1679047997, issued on Jan 21, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Martin R. Williams located?
The NPPES record lists a practice address at 7 Works Way Unit 205, Somersworth, NH, 03878. Phone: (603) 841-5441. Providers update this record themselves, so call before visiting.
How can I verify Martin R. Williams's license?
NPPES lists New Hampshire license number 4468, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.