1. Home
  2. Directory
  3. Illinois
  4. Evanston
  5. Psychiatry Neurology
  6. NPI Profile

PHILIP WILLIAMS
NPI 1164050159
Psychiatry & Neurology - Psychiatry in Evanston, IL

Active since March 27, 2020Opted out of Medicare · through Aug 19, 2026
500 DAVIS ST, EVANSTON, IL 60201(312) 640-7745 Get Directions Write a Review

NPPES record last updated: October 7, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 7, 2025, Mar 27, 2020 (2 updates tracked since 2020).

About Philip Williams NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PHILIP WILLIAMS (NPI 1164050159) is an individual psychiatry provider in Evanston, Illinois, licensed in Illinois (036.171068) and active in the NPI registry since March 2020. He has opted out of Medicare through August 19, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1164050159
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NamePHILIP WILLIAMS
Location Address500 DAVIS STEvanston, IL 60201-4668
Mailing Address3535 Market St Fl 2Philadelphia, PA 19104-3317
Phone(312) 640-7745
Sole ProprietorNo
Enumeration DateMarch 27, 2020
Last NPPES UpdateOctober 7, 20252 updates tracked since enumeration
NPPES CertifiedOctober 7, 2025
✔ NPI 1164050159 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in IL · 036.171068
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
500 DAVIS ST, Evanston, IL 60201
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Philip Williams has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 19, 2024 through August 19, 2026.

Opt-Out Effective DateAugust 19, 2024
Opt-Out In Effect ThroughAugust 19, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.39 typical visit price
range $60.08 – $183.39
Typical copayment $45.84 (range $15.02 – $45.84)
Most-billed visit code 99205
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KIRK BENNEWITZ DDS
Dentist
500 DAVIS ST, #504
EVANSTON, IL 60201
Cook County (847) 491-1011
DR. THOMAS EDMUND MALONE M.AC., PH.D., L.AC.
Acupuncturist
500 DAVIS ST, SUITE 815
EVANSTON, IL 60201
Cook County (773) 680-0081
GEORGE R BROWN DC CCN
Chiropractor
500 DAVIS ST, SUITE 815
EVANSTON, IL 60201
Cook County (847) 425-9120
CONNIE ABURANO R.N., L.AC.
Acupuncturist
500 DAVIS ST, SUITE 815
EVANSTON, IL 60201
Cook County (847) 425-9120
CENTER FOR WELL BEING PC
Counselor (Mental Health)
500 DAVIS ST, SUITE 815
EVANSTON, IL 60201
Cook County (847) 570-0150
LINDA FARGANO LCSW
Social Worker (Clinical)
500 DAVIS ST
EVANSTON, IL 60201
Cook County (847) 378-7244
BEST ENDODONTICS OF EVANSTON LTD
Dentist (Endodontics)
500 DAVIS ST, SUITE 814
EVANSTON, IL 60201
Cook County (847) 869-2223
DR. SARA KASHANI MD
Psychiatry & Neurology (Psychiatry)
500 DAVIS ST
EVANSTON, IL 60201
Cook County (312) 640-7740

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Philip Williams's NPI number?

The NPI number for Philip Williams is 1164050159. It was assigned to this individual provider in the NPPES registry on March 27, 2020.

Where is Philip Williams located?

Philip Williams practices at 500 Davis St, Evanston, IL 60201. The listed phone number is (312) 640-7745.

What is Philip Williams's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Philip Williams enrolled in Medicare?

No. Philip Williams has opted out of Medicare through August 19, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Philip Williams was last updated on October 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.