DR. ELIZABETH MONTGOMERY COLLINS MD
NPI 1821015454
Hospitalist in Saint Louis, MO
About Dr. Elizabeth Montgomery Collins Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ELIZABETH MONTGOMERY COLLINS MD (NPI 1821015454) is an individual hospitalist provider in Saint Louis, Missouri, licensed in Missouri (2003021173) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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. Elizabeth Montgomery Collins Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Elizabeth Collins reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 628 clinicians in this Medicare group
Monroe, GA 30655
- Reassigned Medicare billing, North Carolina enrollment
- 511 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,296 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Texas Childrens Physician Group
- 2,498 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 clinicians in this Medicare group
Cambridge, MA 02139
- Reassigned Medicare billing, Massachusetts enrollment
- 719 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Elizabeth Collins's NPI number?
The NPI number for Elizabeth Collins is 1821015454. It was assigned to this individual provider in the NPPES registry on July 17, 2006.
Where is Elizabeth Collins located?
Elizabeth Collins practices at 1 Childrens Pl Div Ped Hospitalist Med, Saint Louis, MO 63110. The listed phone number is (314) 454-2076.
What is Elizabeth Collins's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Elizabeth Collins enrolled in Medicare?
Yes. Elizabeth Collins is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Elizabeth Collins's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Collins reassigns Medicare benefits to 6 organizations: Washington University (Saint Louis, MO), Hospital Physician Services - Southeast Professional Corporation (Monroe, GA), Baylor College Of Medicine (Houston, TX), Texas Children's Physician Group (Houston, TX), Children's Hospital Pediatric Associates, Inc (Boston, MA) and 1 more organization, listed in the Medicare section above. 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 Elizabeth Collins's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elizabeth Collins accept?
Health plans from Taro Health list Elizabeth Collins 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 Elizabeth Collins was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. Elizabeth Montgomery Collins, MD · NPI 1821015454
Hospitalist physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since July 17, 2006.
## Identity
- **NPI:** 1821015454 (Entity type: Individual)
- **Enumerated:** July 17, 2006
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 2003021173 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 CHILDRENS PL, DIV PED HOSPITALIST MED, Saint Louis, MO 63110-1002
- **Phone:** (314) 454-2076 · **Fax:** (314) 747-8953
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Washington University (NPI 1194765685, Saint Louis, MO); Hospital Physician Services - Southeast Professional Corporation (NPI 1760410385, Monroe, GA); Baylor College Of Medicine (NPI 1053352914, Houston, TX); Texas Children's Physician Group (NPI 1861675506, Houston, TX); Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 209144708 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1821015454) · Data from the CMS NPPES public registry.