TERRI LYNN WILLIAMS MD
NPI 1720114507
Emergency Medicine in Saginaw, MI

Active since February 26, 2007PECOS Enrolled
1500 WEISS ST, SAGINAW, MI 48602(989) 497-2500 Get Directions Write a Review

NPPES record last updated: March 30, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 30, 2025, Oct 31, 2019 (2 updates tracked since 2019).

About Terri Lynn Williams Md NPPES

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

TERRI LYNN WILLIAMS MD (NPI 1720114507) is an individual emergency medicine provider in Saginaw, Michigan, licensed in Michigan (4301065469) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720114507
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameTERRI LYNN WILLIAMSCredential: MD
Location Address1500 WEISS STSaginaw, MI 48602-5251
Mailing Address1500 Weiss StSaginaw, MI 48602-5251 · (989) 497-2500
Sole ProprietorNo
Enumeration DateFebruary 26, 2007
Last NPPES UpdateMarch 30, 20252 updates tracked since enumeration
NPPES CertifiedMarch 30, 2025
NPI 1720114507 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License Licensed in MI · 4301065469
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1500 WEISS ST, Saginaw, MI 48602

Other Identifiers 1

Medicaid3145253MI

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Terri Lynn Williams Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48602 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

Referred Medical Equipment & Supplies CMS DME claims 19

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
10 suppliers58 claims168 services$5.56 avg. paid by Medicare
Normal, low and high calibrator solution / chips A4256
DME-Other DME · category DE000N
3 suppliers11 claims11 services$2.27 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
6 suppliers29 claims35 services$1.01 avg. paid by Medicare
Adhesive remover, wipes, any type, each A4456
DME-Medical/Surgical Supplies · category DA000N
2 suppliers13 claims410 services$0.23 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
4 suppliers16 claims16 services$43.17 avg. paid by Medicare
Skin barrier, wipes or swabs, each A5120
DME-Orthotic Devices · category DF010N
2 suppliers12 claims410 services$0.23 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Pharmacist
1500 WEISS ST
SAGINAW, MI 48602
Social Worker (Clinical)
1500 WEISS ST
SAGINAW, MI 48602
Counselor
1500 WEISS ST
SAGINAW, MI 48602
Recreation Therapist
1500 WEISS ST
SAGINAW, MI 48602
Nurse Anesthetist, Certified Registered
1500 WEISS ST
SAGINAW, MI 48602
Student in an Organized Health Care Education/Training Program
1500 WEISS ST
SAGINAW, MI 48602
Registered Nurse
1500 WEISS ST
SAGINAW, MI 48602
Social Worker (Clinical)
1500 WEISS ST
SAGINAW, MI 48602

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 Terri Williams's NPI number?

The NPI number for Terri Williams is 1720114507. It was assigned to this individual provider in the NPPES registry on February 26, 2007.

Where is Terri Williams located?

Terri Williams practices at 1500 Weiss St, Saginaw, MI 48602. The listed phone number is (989) 497-2500.

What is Terri Williams's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Terri Williams enrolled in Medicare?

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

What insurance does Terri Williams accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Terri 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 Terri Williams was last updated on March 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.