Brian Robert Williamson, PT

  • San Jose, CA
  • Physical therapist
NPI1841273208PAC ID8820183262
Medicare patients, 2024
163
Affiliated sites
3
Medical group
1
State license
1
Year NPI issued
2005
Practice address
1505 Meridian Ave, San Jose, CA 95125
Practice phone
Call (408) 264-6643
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Williamson/ Hahn Physical Therapy

Physical Therapy Clinic · San Jose, California

See all 4 affiliations

Find Brian Williamson's professional email, personal email and mobile number

Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.

View contacts for free

Brian Robert Williamson is a physical therapist in San Jose, California

Brian Williamson practices at Williamson/ Hahn Physical Therapy in San Jose, California.

Brian Williamson's NPI, 1841273208, was assigned on November 21, 2005. Brian Williamson holds California license PT12361.

NPI and contact details
Medicare PAC ID
8820183262
NPI enumeration date
November 21, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(408) 264-6643
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
68
Medical school graduation
1984

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Brian Robert Williamson practices at Williamson/ Hahn Physical Therapy in San Jose, California

Brian Williamson's primary practice is Williamson/ Hahn Physical Therapy, at 1505 Meridian Ave, San Jose, CA 95125. The practice phone is (408) 264-6643.

  • Williamson/ Hahn Physical Therapy
    1505 Meridian Ave, San Jose, CA 95125Phone(408) 264-6643

Source: Dmand AI Affiliation Data

Brian Robert Williamson is affiliated with 3 sites of care and 1 medical group

Brian Williamson's primary practice is Williamson/ Hahn Physical Therapy in San Jose, California. The medical group on file is Doorstep Physical Therapy. Dmand AI also links Brian Williamson to 1 more physician office and 1 group practice or clinic, each named with a free account.

See all 4 affiliations for Brian Williamson

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Brian Robert Williamson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Brian Williamson practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Williamson/ Hahn Physical TherapyAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Brian Williamson practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Brian Robert Williamson is one of 11,178 physical therapists in California

Physical therapist is Brian Williamson's primary specialty in the NPI Registry, under taxonomy code 225100000X. Brian Williamson is licensed in California.

Specialties and state licenses

  • Physical therapist, CaliforniaPrimaryLicense PT12361 · taxonomy 225100000X

Physical therapists near Brian Williamson

Counts of physical therapists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Brian Robert Williamson treated 163 Medicare patients in 2024, average age 75

CMS counts 163 Medicare patients who saw Brian Williamson in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Brian Williamson's median patient age at 67, with 63% women.

Medicare patients, 2024163
Average age75
Average risk score1.13
Also on Medicaid22%

Brian Williamson's Medicare patients by age, 2024

Brian Williamson's Medicare patients by sex, 2024

  • Women10363%
  • Men6037%

Chronic conditions among Brian Williamson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis61%
  4. Diabetes31%
  5. Ischemic heart disease25%
  6. Osteoporosis23%
  7. Mood disorders21%
  8. Anxiety20%

Share of Medicare patients with each condition. A patient can have several.

Brian Williamson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women63%
  • Men37%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Brian Robert Williamson takes part in Medicare

Brian Williamson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

Sources for Brian Robert Williamson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Brian Robert Williamson

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Brian Robert Williamson's NPI number?

Brian Robert Williamson's NPI number is 1841273208. It was assigned on November 21, 2005, and it is active in the NPI Registry.

What does Brian Robert Williamson specialize in?

Brian Robert Williamson is a physical therapist in San Jose, California. The primary specialty in the NPI Registry is Physical Therapist (taxonomy code 225100000X).

Where does Brian Robert Williamson practice?

Brian Williamson practices at 1505 Meridian Ave, San Jose, CA 95125. Brian Williamson's primary practice is Williamson/ Hahn Physical Therapy in San Jose, California. Dmand AI also links Brian Williamson to 1 physician office and 1 group practice or clinic.

What is Brian Robert Williamson's office phone number?

The practice phone on file for Brian Williamson is (408) 264-6643.

What is Brian Robert Williamson's medical license number?

Brian Williamson holds California license PT12361.

What medical group is Brian Robert Williamson part of?

Brian Williamson is linked to Doorstep Physical Therapy.

Does Brian Robert Williamson accept Medicare?

Yes. CMS lists Brian Williamson as accepting Medicare assignment.

How many Medicare patients does Brian Robert Williamson see?

CMS counts 163 Medicare patients who saw Brian Williamson in 2024, with an average age of 75.

How long has Brian Robert Williamson been practicing?

Brian Williamson graduated from medical school in 1984, 42 years ago.

Selling to physical therapist practices?

See physical therapists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)