Log inBook a demoStart free trial
Log inStart free trial

Mark Thomas Summerson, PhD

  • Pullman, WA
  • Psychologist
NPI1932122934
Affiliated sites
1
State license
1
Year NPI issued
2006
Practice address
254 E Main St, Pullman, WA 99163-2678
Practice phone
Call (509) 330-5456
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Palouse Psychological Services

Physician office · Pullman, Washington

Find Mark Summerson'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

Mark Thomas Summerson is a psychologist in Pullman, Washington

Mark Summerson practices at Palouse Psychological Services in Pullman, Washington.

Mark Summerson's NPI, 1932122934, was assigned on July 25, 2006. Mark Summerson holds Washington license WA2258.

NPI and contact details
NPI
1932122934NPI Registry (opens in a new tab)
NPI enumeration date
July 25, 2006
NPI status
Active
Practice phone
(509) 330-5456
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male

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

Mark Thomas Summerson practices at Palouse Psychological Services in Pullman, Washington

Mark Summerson's primary practice is Palouse Psychological Services, at 254 E Main St, Pullman, WA 99163-2678. The practice phone is (509) 330-5456.

  • Palouse Psychological Services
    254 E Main St, Pullman, WA 99163-2678Phone(509) 330-5456

Source: Dmand AI Affiliation Data

Mark Thomas Summerson is affiliated with 1 site of care

Mark Summerson's primary practice is Palouse Psychological Services in Pullman, Washington.

Palouse Psychological ServicesPhysician office · Pullman, WashingtonPrimary

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Mark Thomas Summerson's practice

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

EHR by site
SiteEHR vendor and product
Palouse Psychological ServicesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Mark Summerson 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

Mark Thomas Summerson is one of 329 psychologists in Washington

Psychologist is Mark Summerson's primary specialty in the NPI Registry, under taxonomy code 103T00000X. Mark Summerson is licensed in Washington.

Specialties and state licenses

  • Psychologist, WashingtonPrimaryLicense WA2258 · taxonomy 103T00000X

Psychologists near Mark Summerson

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

329psychologists in Washington
4psychologists in Pullman

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

Sources for Mark Thomas Summerson'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
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 Mark Thomas Summerson

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

What is Mark Thomas Summerson's NPI number?

Mark Thomas Summerson's NPI number is 1932122934. It was assigned on July 25, 2006, and it is active in the NPI Registry.

What does Mark Thomas Summerson specialize in?

Mark Thomas Summerson is a psychologist in Pullman, Washington. The primary specialty in the NPI Registry is Psychologist (taxonomy code 103T00000X).

Where does Mark Thomas Summerson practice?

Mark Summerson practices at 254 E Main St, Pullman, WA 99163-2678. Mark Summerson's primary practice is Palouse Psychological Services in Pullman, Washington.

What is Mark Thomas Summerson's office phone number?

The practice phone on file for Mark Summerson is (509) 330-5456.

What is Mark Thomas Summerson's medical license number?

Mark Summerson holds Washington license WA2258.

How long has Mark Thomas Summerson been practicing?

Mark Summerson's NPI was assigned in 2006.

Selling to psychologist practices?

See psychologists in Washington 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