Philip Williams

  • Evanston, IL
  • Psychiatrist
NPI1164050159
Part D claims, 2024
180
Industry payments
$62
Affiliated sites
1
Medical group
1
State license
1
Practice address
500 Davis St, Evanston, IL 60201
Practice phone
Call (312) 640-7740
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Meridian Psychiatric Partners

Evanston, Illinois

See all 3 affiliations

Find Philip Williams' 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

Philip Williams is a psychiatrist in Evanston, Illinois

Philip Williams practices at Meridian Psychiatric Partners in Evanston, Illinois.

Philip Williams' NPI, 1164050159, was assigned on March 27, 2020. Philip Williams holds Illinois license 036.171068.

NPI and contact details
NPI enumeration date
March 27, 2020
NPI status
Active
Practice phone
(312) 640-7740
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 Practice Data

Philip Williams practices at Meridian Psychiatric Partners in Evanston, Illinois

Philip Williams' primary practice is Meridian Psychiatric Partners, at 500 Davis St, Evanston, IL 60201 in Cook County. The practice phone is (312) 640-7740.

  • Meridian Psychiatric Partners
    500 Davis St, Evanston, IL 60201 · Cook CountyPhone(312) 640-7740

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Philip Williams is affiliated with 2 sites of care and 1 medical group

Philip Williams' primary practice is Meridian Psychiatric Partners in Evanston, Illinois. Dmand AI also links Philip Williams to 1 group practice or clinic and 1 medical group, each named with a free account.

See all 3 affiliations for Philip Williams

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

Dmand AI tracks the EHR system at Philip Williams' practice

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

EHR by site
SiteEHR vendor and product
Meridian Psychiatric PartnersAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Philip Williams 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.

Philip Williams is one of 1,527 psychiatrists in Illinois

Psychiatry is Philip Williams' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Philip Williams is licensed in Illinois.

Specialties and state licenses

  • Psychiatry, IllinoisPrimaryLicense 036.171068 · taxonomy 2084P0800X

Psychiatrists near Philip Williams

Counts of psychiatrists 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

Philip Williams' patients have a median age of 31

Across all payers, Dmand AI patient panel data puts Philip Williams' median patient age at 31, with 42% women.

Philip Williams' patients across all payers

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

Patient panel by age, all payers

Median age 31

Patient panel by sex, all payers

  • Women42%
  • Men57%

Source: Dmand AI Patient Panel Data

Philip Williams wrote 180 Medicare Part D claims in 2024

In 2024, Philip Williams wrote 180 Medicare Part D claims for 21 patients. 91% of them were for generic drugs. CMS names the drug for 46 of them, across 3 drugs with 11 or more claims each, at $6,502 in total drug cost.

Part D claims, 2024180
Drugs named by CMS3
Total drug cost$6,502
Part D patients21

Philip Williams' Part D claims by kind of drug, 2024

  • Generic163 claims91%
  • Brand-name17 claims9%

Philip Williams' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Philip Williams' Part D claims, 2024

  • Antipsychotics, patients 65 and over8%15 of 180 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Philip Williams

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

For MedTech and pharma teams

Find psychiatrists like Philip Williams by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Philip Williams received $62 in industry payments from 2024 to 2025

CMS Open Payments shows 2 general payments to Philip Williams from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. TMS NeuroHealth Centers Inc. paid the most, $38.

General payments to Philip Williams by program year, 2024 to 2025

Companies that paid Philip Williams the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Philip Williams

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Philip Williams'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 Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (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 Philip Williams

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

What is Philip Williams' NPI number?

Philip Williams' NPI number is 1164050159. It was assigned on March 27, 2020, and it is active in the NPI Registry.

What does Philip Williams specialize in?

Philip Williams is a psychiatrist in Evanston, Illinois. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Philip Williams practice?

Philip Williams practices at 500 Davis St, Evanston, IL 60201. Philip Williams' primary practice is Meridian Psychiatric Partners in Evanston, Illinois. Dmand AI also links Philip Williams to 1 group practice or clinic and 1 medical group.

What is Philip Williams' office phone number?

The practice phone on file for Philip Williams is (312) 640-7740.

What is Philip Williams' medical license number?

Philip Williams holds Illinois license 036.171068.

What drugs does Philip Williams prescribe most?

In 2024 Medicare Part D data, Philip Williams' most prescribed drugs by claims were Lamotrigine, Desvenlafaxine Succinate ER and Savella.

Has Philip Williams received payments from drug or device companies?

CMS Open Payments shows $62 in general payments to Philip Williams from 2 companies from 2024 to 2025. The largest total came from TMS NeuroHealth Centers Inc.

How long has Philip Williams been practicing?

Philip Williams' NPI was assigned in 2020.

Selling to psychiatry practices?

See psychiatrists in Illinois 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)