DR. MONICA LYNN MUIR D.O.
NPI 1063775328
Internal Medicine - Hospice and Palliative Medicine in Saint Louis, MO

Active since June 21, 2012PECOS Enrolled
621 S NEW BALLAS RD STE 6017B, SAINT LOUIS, MO 63141(314) 251-7840(314) 251-4173 Get Directions Write a Review

NPPES record last updated: July 9, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 9, 2018, Apr 11, 2017 (2 updates tracked since 2017).

About Dr. Monica Lynn Muir D.o. NPPES

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

DR. MONICA LYNN MUIR D.O. (NPI 1063775328) is an individual hospice and palliative medicine provider in Saint Louis, Missouri, licensed in Missouri (2017007169) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1063775328
Entity TypeIndividualFemale
Primary Taxonomy207RH0002X
Provider Legal NameDR. MONICA LYNN MUIRCredential: D.O.
Location Address621 S NEW BALLAS RD STE 6017BSaint Louis, MO 63141
Mailing Address621 S New Ballas Rd Ste 6017bSaint Louis, MO 63141-8274 · (314) 251-7840 · Fax (314) 251-4173
Fax(314) 251-4173
Sole ProprietorYes
Enumeration DateJune 21, 2012
Last NPPES UpdateJuly 9, 20182 updates tracked since enumeration
✔ NPI 1063775328 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RH0002X
License✔ Licensed in MO · 2017007169
Definition
An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.
Also ListedInternal MedicineTaxonomy 207R00000X · License 2017007169 (MO)
Also ListedPediatricsTaxonomy 208000000X · License 2017007169 (MO)
621 S NEW BALLAS RD STE 6017B, Saint Louis, MO 63141

Other Names 1

Former Name (1)Monica Evans

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Monica Lynn Muir D.o. 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Monica Muir reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pediatrics
621 S NEW BALLAS RD, SUITE 6006-B
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • Medicare enrollment name: Mercy Clinic Childrens Palliative Care LLC
  • 2 clinicians in this Medicare group
Internal Medicine
1225 SOUTH GRAND BLVD, 2L - DOOR 3,4
Saint Louis, MO 63104
  • Reassigned Medicare billing, Missouri enrollment
  • 1,294 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Referred Medical Equipment & Supplies CMS DME claims 2

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

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims360 services$4.97 avg. paid by Medicare
Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150
Other-Enteral and Parenteral · category OB006N
2 suppliers14 claims2,634 services$0.33 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 13

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

Social Worker (Clinical)
621 S NEW BALLAS RD STE 6017B
SAINT LOUIS, MO 63141
Nurse Practitioner (Family)
621 S NEW BALLAS RD STE 6017B
SAINT LOUIS, MO 63141
Nurse Practitioner (Adult Health)
621 S NEW BALLAS RD STE 6017B
SAINT LOUIS, MO 63141
Internal Medicine
621 S NEW BALLAS RD STE 6017B
SAINT LOUIS, MO 63141
Social Worker (Clinical)
621 S NEW BALLAS RD STE 6017B
SAINT LOUIS, MO 63141
Internal Medicine (Hospice and Palliative Medicine)
621 S NEW BALLAS RD STE 6017B
SAINT LOUIS, MO 63141
Internal Medicine (Geriatric Medicine)
621 S NEW BALLAS RD STE 6017B
SAINT LOUIS, MO 63141
Internal Medicine (Hospice and Palliative Medicine)
621 S NEW BALLAS RD STE 6017B
SAINT LOUIS, MO 63141

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 Monica Muir's NPI number?

The NPI number for Monica Muir is 1063775328. It was assigned to this individual provider in the NPPES registry on June 21, 2012. The provider is also known as Monica Evans.

Where is Monica Muir located?

Monica Muir practices at 621 S New Ballas Rd Ste 6017B, Saint Louis, MO 63141. The listed phone number is (314) 251-7840.

What is Monica Muir's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.

Is Monica Muir enrolled in Medicare?

Yes. Monica Muir is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Monica Muir's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Monica Muir reassigns Medicare benefits to 2 organizations: Mercy Clinic Children's Palliative Care LLC (Saint Louis, MO) and Ssm Health Care Group (Saint Louis, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Monica Muir's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Monica Muir accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Monica Muir 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 Monica Muir was last updated on July 9, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.