Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. WILLIAM HARRELD PETERSON PA-C
NPI 1164482212
Physician Assistant in Great Lakes, IL

Active since March 24, 2006
3420 ILLINOIS ST, USS TRANQUILITY MEDICAL CLINIC 1007, GREAT LAKES, IL 60088(847) 688-6755 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mr. William Harreld Peterson Pa-c NPPES

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

MR. WILLIAM HARRELD PETERSON PA-C (NPI 1164482212) is an individual physician assistant in Great Lakes, Illinois, licensed in New Mexico (2000-PA22) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1164482212
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. WILLIAM HARRELD PETERSONCredential: PA-C
Location Address3420 ILLINOIS ST, USS TRANQUILITY MEDICAL CLINIC 1007Great Lakes, IL 60088-5230
Mailing Address1313 Pine Grove AveRound Lake Beach, IL 60073-2152 · (847) 688-6755
Sole ProprietorNo
Enumeration DateMarch 24, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1164482212 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in NM · 2000-PA22
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
3420 ILLINOIS ST, Great Lakes, IL 60088

Other Providers at the Same Location NPPES 18

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

Physical Therapist
3420 ILLINOIS ST
GREAT LAKES, IL 60088
Physician Assistant (Medical)
3420 ILLINOIS ST
GREAT LAKES, IL 60088
Nurse Practitioner (Family)
3420 ILLINOIS ST
GREAT LAKES, IL 60088
Family Medicine
3420 ILLINOIS ST, USS TRANQUILLITY CLINIC 1007
GREAT LAKES, IL 60088
Military/U.S. Coast Guard Pharmacy
3420 ILLINOIS ST, USS TRANQUILITYAH14 MED CLN 1017
GREAT LAKES, IL 60088
General Practice
3420 ILLINOIS ST
GREAT LAKES, IL 60088
Psychologist (Clinical)
3420 ILLINOIS ST, REU, BUILDING 1007
GREAT LAKES, IL 60088
Military/U.S. Coast Guard Pharmacy
3420 ILLINOIS ST, AH14 MEDICAL CLINIC
GREAT LAKES, IL 60088

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 Peterson's NPI number?

The NPI number for William Peterson is 1164482212. It was assigned to this individual provider in the NPPES registry on March 24, 2006.

Where is William Peterson located?

William Peterson practices at 3420 Illinois St Uss Tranquility Medical Clinic 1007, Great Lakes, IL 60088. The listed phone number is (847) 688-6755.

What is William Peterson's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for William Peterson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days 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.