DR. MONICA ANNE UNTERREINER DO
NPI 1639730328
Family Medicine in Saint Louis, MO
About Dr. Monica Anne Unterreiner Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MONICA ANNE UNTERREINER DO (NPI 1639730328) is an individual family medicine provider in Saint Louis, Missouri, licensed in Missouri (2019020201) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Southeast, and is a graduate of Kansas City College Of Medicine And Surgery (2019).
NPPES Registry Identity
Specialties & Licenses
Other Names 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 and accepts Medicare assignment
Dr. Monica Anne Unterreiner Do 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.
Medicare Billing Reassignment
Medicare enrollment records show Monica Unterreiner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cape Girardeau, MO 63701
- Reassigned Medicare billing, Missouri enrollment
- 470 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.
Areas of Expertise CMS Part B claims
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital Southeast
Acute Care Hospitals · Cape Girardeau, MOMercy Hospital Stoddard
Acute Care Hospitals · Dexter, MOSaint Francis Medical Center
Acute Care Hospitals · Cape Girardeau, MOMercy Hospital Perry
Critical Access Hospitals · Perryville, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63122 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 63122
SAINT LOUIS, MO 63122
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 Unterreiner's NPI number?
The NPI number for Monica Unterreiner is 1639730328. It was assigned to this individual provider in the NPPES registry on June 24, 2019. The provider is also known as Monica Anne Henggeler.
Where is Monica Unterreiner located?
Monica Unterreiner practices at 2345 Dougherty Ferry Rd, Saint Louis, MO 63122. The listed phone number is (314) 966-9586.
What is Monica Unterreiner's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Monica Unterreiner enrolled in Medicare?
Yes. Monica Unterreiner 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.
Which organization bills Medicare for Monica Unterreiner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Monica Unterreiner reassigns Medicare benefits to Southeast Missouri Hospital Physicians, LLC (Cape Girardeau, MO). The 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 Unterreiner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Monica Unterreiner 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 3 other insurers list Monica Unterreiner 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 Monica Unterreiner affiliated with any hospitals?
According to CMS data, Monica Unterreiner is affiliated with Mercy Hospital Southeast, Mercy Hospital Stoddard, Saint Francis Medical Center and Mercy Hospital Perry.
When was this NPI record last updated?
The NPPES record for Monica Unterreiner was last updated on June 24, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Monica Anne Unterreiner, DO · NPI 1639730328
Family Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 24, 2019.
## Identity
- **NPI:** 1639730328 (Entity type: Individual)
- **Enumerated:** June 24, 2019
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 2019020201 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 2345 DOUGHERTY FERRY RD, Saint Louis, MO 63122-3313
- **Phone:** (314) 966-9586 · **Fax:** (314) 966-9394
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southeast Missouri Hospital Physicians, LLC (NPI 1558311522, Cape Girardeau, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City College Of Medicine And Surgery, class of 2019
## Record status
- **NPPES last updated:** June 24, 2019
---
Source: [NPI Profile](https://npiprofile.com/npi/1639730328) · Data from the CMS NPPES public registry.