STEPHANIE F WILLIAMS MD
NPI 1003805409
Internal Medicine - Medical Oncology in Grand Rapids, MI

Q: What is Stephanie Williams's NPI number?

The NPI number for Stephanie Williams is 1003805409. It was assigned to this individual provider in the NPPES registry on October 18, 2005.

Q: What is Stephanie Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Active since October 18, 2005

145 MICHIGAN ST NE, SUITE 5200, GRAND RAPIDS, MI 49503(616) 486-5933(616) 486-6489 Get Directions Write a Review

NPPES record last updated: February 22, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Stephanie F Williams Md NPPES

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

STEPHANIE F WILLIAMS MD (NPI 1003805409) is an individual medical oncology provider in Grand Rapids, Michigan, licensed in Illinois (036 067154) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1003805409

Entity TypeIndividualFemale

Primary Taxonomy207RX0202X

Provider Legal NameSTEPHANIE F WILLIAMSCredential: MD

Location Address145 MICHIGAN ST NE, SUITE 5200Grand Rapids, MI 49503-2562

Mailing Address100 Michigan St Ne, Mc 845Grand Rapids, MI 49503-2560

Phone(616) 486-5933

Fax(616) 486-6489

Sole ProprietorNo

Enumeration DateOctober 18, 2005

Last NPPES UpdateFebruary 22, 2021

NPPES CertifiedFebruary 22, 2021

✔ NPI 1003805409 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in IL · 036 067154

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

145 MICHIGAN ST NE, Grand Rapids, MI 49503

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Other Identifiers 2

Medicaid1003805409MI

Medicaid036 067154IL

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.

JAMES D THOMPSON MD

Otolaryngology

145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503

Kent County (616) 267-7758

KELLY ANN CONLEY NP

Nurse Practitioner (Women's Health)

145 MICHIGAN ST NE, SUITE 6300
GRAND RAPIDS, MI 49503

Kent County (616) 486-6000

DR. ROSS SCHULTHEISS PHARM.D.

Pharmacist

145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503

Kent County (616) 977-4840

AMELIA ROSE MROCH MS

Genetic Counselor, MS

145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503

Kent County (616) 486-6218

KRISTIN DIANE BROWN CNS

Registered Nurse (Oncology)

145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503

Kent County (616) 486-5700

DR. GORDON OLIVER DOWNEY M.D.

Obstetrics & Gynecology (Gynecologic Oncology)

145 MICHIGAN ST NE, SUITE 6300
GRAND RAPIDS, MI 49503

Kent County (616) 486-6000

KIMBERLY ANN TEXLEY-QUIGG N.P.

Nurse Practitioner (Women's Health)

145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503

Kent County (616) 486-6333

MS. PATTY OLESZKIEWICZ PA

Physician Assistant

145 MICHIGAN ST NE, SUITE 3100
GRAND RAPIDS, MI 49503

Kent County (616) 954-9800

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 Stephanie Williams's NPI number?

The NPI number for Stephanie Williams is 1003805409. It was assigned to this individual provider in the NPPES registry on October 18, 2005.

Where is Stephanie Williams located?

Stephanie Williams practices at 145 Michigan St NE Suite 5200, Grand Rapids, MI 49503. The listed phone number is (616) 486-5933.

What is Stephanie Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

When was this NPI record last updated?

The NPPES record for Stephanie Williams was last updated on February 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.