MONIQUE MARIE WILLIAMS MD
NPI 1780602417
Internal Medicine - Geriatric Medicine in Hazelwood, MO

Q: What is Monique Williams's NPI number?

The NPI number for Monique Williams is 1780602417. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Q: What is Monique Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Q: When was this NPI record last updated?

The NPPES record for Monique Williams was last updated on April 9, 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.

Active since July 18, 2006PECOS EnrolledAccepts Medicare Assignment

637 DUNN RD STE 102, HAZELWOOD, MO 63042(314) 817-2000 Get Directions Write a Review

NPPES record last updated: April 9, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 9, 2025, Jul 18, 2018 (2 updates tracked since 2018).

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About Monique Marie Williams Md NPPES

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

MONIQUE MARIE WILLIAMS MD (NPI 1780602417) is an individual geriatric medicine provider in Hazelwood, Missouri, licensed in Missouri (2002045377) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Washington University School Of Medicine (1999).

NPPES Registry Identity

NPI1780602417

Entity TypeIndividualFemale

Primary Taxonomy207RG0300X

Provider Legal NameMONIQUE MARIE WILLIAMSCredential: MD

Location Address637 DUNN RD STE 102Hazelwood, MO 63042-1747

Mailing AddressPo Box 776084Chicago, IL 60677-6084 · (314) 817-2000

Phone(314) 817-2000

Sole ProprietorNo

Medical School CMSWashington University School Of MedicineGraduated 1999

Enumeration DateJuly 18, 2006

Last NPPES UpdateApril 9, 20252 updates tracked since enumeration

NPPES CertifiedApril 9, 2025

✔ NPI 1780602417 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in MO · 2002045377

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

637 DUNN RD STE 102, Hazelwood, MO 63042

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Monique Marie Williams Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9638139868

PECOS Enrollment IDI20041013000117

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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

21 services18 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

16 services16 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260020

Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County

Emergency services Birthing friendly

Christian Hospital Northeast

Acute Care Hospitals · Saint Louis, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260180

Location11133 Dunn RoadSaint Louis, MO 63136 · St. Louis County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63042 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

$169.38 typical visit price

range $55.65 – $169.38

Typical copayment $42.34 (range $13.91 – $42.34)

Most-billed visit code 99205

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

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 2

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

MRS. YORVOLL GARDNER NP

Nurse Practitioner (Adult Health)

637 DUNN RD STE 102
HAZELWOOD, MO 63042

St. Louis County (314) 817-2000

DR. KATHERINE RUTH RICHARDS M.D.

Family Medicine

637 DUNN RD STE 102
HAZELWOOD, MO 63042

St. Louis County (314) 817-2000

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 Monique Williams's NPI number?

The NPI number for Monique Williams is 1780602417. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is Monique Williams located?

Monique Williams practices at 637 Dunn Rd Ste 102, Hazelwood, MO 63042. The listed phone number is (314) 817-2000.

What is Monique Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Monique Williams enrolled in Medicare?

Yes. Monique Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Monique Williams accept?

Health plans from UnitedHealthcare list Monique 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.

Is Monique Williams affiliated with any hospitals?

According to CMS data, Monique Williams is affiliated with Mercy Hospital St Louis and Christian Hospital Northeast.

When was this NPI record last updated?

The NPPES record for Monique Williams was last updated on April 9, 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.