Log inBook a demoStart free trial
Log inStart free trial

Thomas Elliston Guyer

  • San Leandro, CA
  • Clinical psychologist
NPI1316311053PAC ID4789153420
Affiliated sites
1
Medical group
1
State license
1
Year NPI issued
2015
Practice locations
2
Practice address
185 Devonshire St Suite 801 Suite 801, Boston, MA 02110-1407
Practice phone
Call (617) 259-1895
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Lifestance Health

Behavioral health practice · Boston, Massachusetts

Find Thomas Guyer'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

Thomas Elliston Guyer is a clinical psychologist in San Leandro, California

Thomas Guyer practices at Lifestance Health in Boston, Massachusetts.

Thomas Guyer's NPI, 1316311053, was assigned on November 18, 2015. Thomas Guyer holds Massachusetts license PSY10001721.

NPI and contact details
NPI
1316311053NPI Registry (opens in a new tab)
Medicare PAC ID
4789153420
NPI enumeration date
November 18, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(617) 259-1895
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male

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

Thomas Elliston Guyer practices in Boston and San Leandro

Thomas Guyer's primary practice is Lifestance Health, at 185 Devonshire St Suite 801 Suite 801, Boston, MA 02110-1407. The practice phone is (617) 259-1895. The NPI Registry lists Thomas Guyer's practice address as 2275 Arlington Dr, San Leandro, CA 94578.

  • Lifestance HealthPrimary
    185 Devonshire St Suite 801 Suite 801, Boston, MA 02110-1407Phone(617) 259-1895
  • NPI Registry address
    2275 Arlington Dr, San Leandro, CA 94578Phone(510) 317-1445

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

Thomas Elliston Guyer is affiliated with 1 site of care and 1 medical group

Thomas Guyer's primary practice is Lifestance Health in Boston, Massachusetts. The medical group on file is LifeStance Health.

Lifestance HealthBehavioral health practice · Boston, MassachusettsPrimary
LifeStance HealthBehavioral and mental health group, Weymouth, MA

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Thomas Elliston Guyer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Thomas Guyer practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Lifestance HealthAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Thomas Guyer 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.

Try for freeBook a meeting

Thomas Elliston Guyer is one of 3,615 clinical psychologists in California

Clinical is Thomas Guyer's primary specialty in the NPI Registry, under taxonomy code 103TC0700X. Thomas Guyer is licensed in Massachusetts.

Specialties and state licenses

  • Clinical psychologist, MassachusettsPrimaryLicense PSY10001721 · taxonomy 103TC0700X

Clinical psychologists near Thomas Guyer

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

3,615clinical psychologists in California
9clinical psychologists in San Leandro

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

How Thomas Elliston Guyer takes part in Medicare

Thomas Guyer 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 Thomas Elliston Guyer'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (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 Thomas Elliston Guyer

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

What is Thomas Elliston Guyer's NPI number?

Thomas Elliston Guyer's NPI number is 1316311053. It was assigned on November 18, 2015, and it is active in the NPI Registry.

What does Thomas Elliston Guyer specialize in?

Thomas Elliston Guyer is a clinical psychologist in San Leandro, California. The primary specialty in the NPI Registry is Clinical Psychologist (taxonomy code 103TC0700X).

Where does Thomas Elliston Guyer practice?

Thomas Guyer practices at 185 Devonshire St Suite 801 Suite 801, Boston, MA 02110-1407. Thomas Guyer also practices at 2275 Arlington Dr, San Leandro, CA 94578. Thomas Guyer's primary practice is Lifestance Health in Boston, Massachusetts.

What is Thomas Elliston Guyer's office phone number?

The practice phone on file for Thomas Guyer is (617) 259-1895.

What is Thomas Elliston Guyer's medical license number?

Thomas Guyer holds Massachusetts license PSY10001721.

What medical group is Thomas Elliston Guyer part of?

Thomas Guyer is linked to LifeStance Health.

Does Thomas Elliston Guyer accept Medicare?

Yes. CMS lists Thomas Guyer as accepting Medicare assignment.

How long has Thomas Elliston Guyer been practicing?

Thomas Guyer's NPI was assigned in 2015.

Selling to clinical practices?

See clinical psychologists 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.

Start free trialBook a demo
  • 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)
Read the Cookie Policy