WILLIAM G PHILLIPS
NPI 1356012009
Psychologist in Evansville, IN

Active since September 22, 2021PECOS Enrolled
120 SE 4TH ST, EVANSVILLE, IN 47708(812) 426-9779(812) 450-0007 Get Directions Write a Review

NPPES record last updated: October 22, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 22, 2021, Sep 22, 2021 (2 updates tracked since 2021).

About William G Phillips NPPES

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

WILLIAM G PHILLIPS (NPI 1356012009) is an individual psychologist in Evansville, Indiana, licensed in Indiana (20043499A) and active in the NPI registry since September 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356012009
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameWILLIAM G PHILLIPS
Location Address120 SE 4TH STEvansville, IN 47708-1607
Mailing AddressPo Box 1510Evansville, IN 47706-1510 · (812) 450-6815 · Fax (812) 450-6822
Fax(812) 450-0007
Sole ProprietorNo
Enumeration DateSeptember 22, 2021
Last NPPES UpdateOctober 22, 20212 updates tracked since enumeration
NPPES CertifiedOctober 22, 2021
✔ NPI 1356012009 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in IN · 20043499A
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 20043499A (IN)
120 SE 4TH ST, Evansville, IN 47708

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William G Phillips is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show William Phillips reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
120 SE 4TH ST
Evansville, IN 47708
  • Reassigned Medicare billing, Indiana enrollment
  • Medicare enrollment name: Deaconess Clinic Inc
  • 444 clinicians in this Medicare group
Adolescent and Children Mental Health
1931 LINCOLN AVE SUITE A
Evansville, IN 47722
  • Reassigned Medicare billing, Indiana enrollment
  • 4 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

Physician Assistant
120 SE 4TH ST
EVANSVILLE, IN 47708
Psychologist (Clinical)
120 SE 4TH ST
EVANSVILLE, IN 47708
Dermatology
120 SE 4TH ST
EVANSVILLE, IN 47708
Psychologist
120 SE 4TH ST
EVANSVILLE, IN 47708
Dermatology
120 SE 4TH ST
EVANSVILLE, IN 47708
Nurse Practitioner
120 SE 4TH ST
EVANSVILLE, IN 47708
Dietitian, Registered (Nutrition, Metabolic)
120 SE 4TH ST
EVANSVILLE, IN 47708
Family Medicine
120 SE 4TH ST
EVANSVILLE, IN 47708

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 William Phillips's NPI number?

The NPI number for William Phillips is 1356012009. It was assigned to this individual provider in the NPPES registry on September 22, 2021.

Where is William Phillips located?

William Phillips practices at 120 SE 4th St, Evansville, IN 47708. The listed phone number is (812) 426-9779.

What is William Phillips's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is William Phillips enrolled in Medicare?

Yes. William Phillips is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Phillips's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Phillips reassigns Medicare benefits to 2 organizations: Deaconess Clinc Inc (Evansville, IN) and University Of Evansville (Evansville, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Phillips's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Phillips accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource list William Phillips as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Phillips was last updated on October 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.