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Zachary Joesph Witges , AGNP

Nurse Practitioner β€’ Alton, IL

Active NPI 1801639596 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

4 Memorial Dr Ste 230
Alton, IL 620026704

Call 6184637874 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

4 Memorial Dr Ste 230

Alton, IL 620026704

Telephone 6184637874
Fax 3149967658
Other Listings in Public Data

NPPES lists 1 additional practice-address record in Florissant, MO. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Fairview Heights Medical Group Sc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2023

Open Payments general payments, program year 2025

All general payments: $85.83 across 5 records.

By nature of payment

  • Food and Beverage: $85.83 across 5 records.

Reporting-company totals (3 largest of 5)

  • Neurelis, Inc.: $19.70 across 1 record.
  • Eli Lilly and Company: $18.72 across 1 record.
  • Teva Pharmaceuticals USA, Inc.: $17.03 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

3 years (graduated 2023)

CMS Doctors and Clinicians data list 2023 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2024

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Zachary Witges has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Zachary Witges as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Alton and Illinois

24 active clinicians are listed under Nurse Practitioner with a practice address in Alton, IL (4,894 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Alton

20.8% of these 24 clinicians have the CMS telehealth indicator.

83.3% of these 24 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $85.83.

Manufacturer Payment Nature Product Type Amount ($)
Neurelis, Inc.
Food and Beverage
In-kind items and services
VALTOCO General $19.70
Eli Lilly and Company
Food and Beverage
In-kind items and services
ZEPBOUND General $18.72
Teva Pharmaceuticals USA, Inc.
Food and Beverage
In-kind items and services
AUSTEDO XR General $17.03
HARMONY BIOSCIENCES LLC
Food and Beverage
In-kind items and services
WAKIX General $15.30
ABBVIE INC.
Food and Beverage
In-kind items and services
UBRELVY General $15.08

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-09-19
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES IL 209029825

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Nurse Practitioner - Adult Health

NUCC Taxonomy Code: 363LA2200X

License # reported to NPPES IL 209.029825
Nurse Practitioner

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES MO 2024043178

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20250131003379

Enrollment State Jurisdiction

MO

PECOS Control ID

3971035528

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Fairview Heights Medical Group Sc

11133 Dunn Rd, Saint Louis, MO 631366163

Phone: 3146535643

Fairview Heights Medical Group Sc

11133 Dunn Rd, Saint Louis, MO 631366163

Phone: 3146535643

Fairview Heights Medical Group Sc

11155 Dunn Rd, Saint Louis, MO 631366148

Phone: 3149538799

Fairview Heights Medical Group Sc

4 Memorial Dr, Alton, IL 620026704

Phone: 6184637833

Secondary Practice Locations

1225 Graham Rd Ste 1220b

Florissant, MO 630318012

Phone: 6184668666

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

12 listed
Dr. Melissa Armstead , DNP

Nurse Practitioner

NPI 1326599911

Doctor of Nursing Practice

Cody Bilderback , FNP

Nurse Practitioner - Family

NPI 1467890657

Family Nurse Practitioner

Brandy Byrd , FNP

Nurse Practitioner

NPI 1902217540

Family Nurse Practitioner

Lauren Flavan , PA-C

Physician Assistant

NPI 1750983045

Physician Assistant (Certified)

Theresa Jones , RN, MSN, FNP-C

Nurse Practitioner - Acute Care

NPI 1235292319

Registered Nurse, Master of Science in Nursing, Family Nurse Practitioner (Certified)

Dr. Ahmad Karadaghy , MD

Internal Medicine - Gastroenterology

NPI 1619963063

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) September 19, 2025

Nurse Practitioner (license number reported to NPPES: IL 209.029825)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 03, 2025

Nurse Practitioner (license number reported to NPPES: MO 2024043178)

πŸ“
Updated Practice Location August 28, 2024

Registered at 4 MEMORIAL DR STE 230, ALTON, IL 620026704 (Tel: 6184637874)

πŸ“
Updated Business Mailing Address August 28, 2024

Registered at PO BOX 959203, SAINT LOUIS, MO 631958512 (Tel: 6182342390)

βœ…
NPI Profile Active June 18, 2024

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) June 18, 2024

Registered at 660 MASON RIDGE CENTER DR STE 300, SAINT LOUIS, MO 631418512 (Tel: 3144821217)

πŸ“
Business Mailing Address (Initial Record) June 18, 2024

Registered at 660 MASON RIDGE CENTER DR STE 300, SAINT LOUIS, MO 631418512 (Tel: 3144821217)

πŸ‘€
Provider Name / Credentials (Initial Record) June 18, 2024

Recorded as ZACHARY WITGES, AGNP

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 18, 2024

Nurse Practitioner (license number reported to NPPES: IL 209.029825)

🟒
Initial NPI Registration & Enumeration June 18, 2024

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1801639596
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 18, 2024
Last Update: September 19, 2025
Sole Proprietor: No

Other Nurse Practitioners in Alton

All Nurse Practitioners in Alton

Mailing Address

Po Box 959203

Saint Louis, MO 631958512

Phone: 6182342390

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.