EARNEST WILLIAMS NP
NPI 1891435798
Nurse Practitioner - Family in Southfield, MI

Active since March 30, 2022PECOS Enrolled
17330 NORTHLAND PARK CT, SOUTHFIELD, MI 48075(248) 552-9500(248) 552-8144 Get Directions Write a Review

NPPES record last updated: March 30, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Earnest Williams Np NPPES

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

EARNEST WILLIAMS NP (NPI 1891435798) is an individual family provider in Southfield, Michigan, licensed in Michigan (4704335653) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891435798
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameEARNEST WILLIAMSCredential: NP
Location Address17330 NORTHLAND PARK CTSouthfield, MI 48075-4318
Mailing Address17330 Northland Park CtSouthfield, MI 48075-4318 · (248) 552-9500
Fax(248) 552-8144
Sole ProprietorNo
Enumeration DateMarch 30, 2022
NPPES CertifiedMarch 30, 2022
✔ NPI 1891435798 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MI · 4704335653
17330 NORTHLAND PARK CT, Southfield, MI 48075

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)

Earnest Williams Np 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 Earnest Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
17330 NORTHLAND PARK CT
Southfield, MI 48075
  • Reassigned Medicare billing, Michigan enrollment
  • 4 clinicians in this Medicare group
Nurse Practitioner
200 OCEANGATE STE 100
Long Beach, CA 90802
  • Reassigned Medicare billing, Michigan enrollment
  • 157 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48075 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
$90.76 typical visit price
range $58.04 – $177.36
Typical copayment $22.69 (range $14.51 – $44.34)
Most-billed visit code 99203
Established Patient
$102.35 typical visit price
range $18.32 – $143.49
Typical copayment $25.58 (range $4.58 – $35.87)
Most-billed visit code 99214
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.

Clinic/Center (Physical Therapy)
17330 NORTHLAND PARK CT
SOUTHFIELD, MI 48075
Clinic/Center (Health Service)
17330 NORTHLAND PARK CT, STE 100
SOUTHFIELD, MI 48075
Nurse Practitioner (Primary Care)
17330 NORTHLAND PARK CT
SOUTHFIELD, MI 48075
Nurse Practitioner
17330 NORTHLAND PARK CT
SOUTHFIELD, MI 48075
Social Worker (Clinical)
17330 NORTHLAND PARK CT
SOUTHFIELD, MI 48075
Physical Medicine & Rehabilitation
17330 NORTHLAND PARK CT, 201
SOUTHFIELD, MI 48075
Clinic/Center (Multi-Specialty)
17330 NORTHLAND PARK CT
SOUTHFIELD, MI 48075
Clinical Nurse Specialist (Gerontology)
17330 NORTHLAND PARK CT, SUITE 100
SOUTHFIELD, MI 48075

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 Earnest Williams's NPI number?

The NPI number for Earnest Williams is 1891435798. It was assigned to this individual provider in the NPPES registry on March 30, 2022.

Where is Earnest Williams located?

Earnest Williams practices at 17330 Northland Park Ct, Southfield, MI 48075. The listed phone number is (248) 552-9500.

What is Earnest Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Earnest Williams enrolled in Medicare?

Yes. Earnest Williams is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Earnest Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Earnest Williams reassigns Medicare benefits to 2 organizations: Leonard Ellison Jr MD PC (Southfield, MI) and Molina Care Connections, LLC. (Long Beach, CA). 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 Earnest Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Earnest Williams accept?

Health plans from CareSource list Earnest Williams 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 Earnest Williams was last updated on March 30, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.