DR. ALLISON CLAIRE FLAMMANG D.O.
NPI 1154760163
Family Medicine in Creve Coeur, MO
About Dr. Allison Claire Flammang D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALLISON CLAIRE FLAMMANG D.O. (NPI 1154760163) is an individual family medicine provider in Creve Coeur, Missouri, licensed in Missouri (2016014433) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
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. Allison Claire Flammang D.o. 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 Allison Flammang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Creve Coeur, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 6 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 7
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 3
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, MOMissouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOSt Lukes Hospital
Acute Care Hospitals · Chesterfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63141 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Allison Flammang's NPI number?
The NPI number for Allison Flammang is 1154760163. It was assigned to this individual provider in the NPPES registry on June 24, 2013.
Where is Allison Flammang located?
Allison Flammang practices at 11550 Olive Blvd Ste 120, Creve Coeur, MO 63141. The listed phone number is (314) 525-2590.
What is Allison Flammang's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Allison Flammang enrolled in Medicare?
Yes. Allison Flammang 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 Allison Flammang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Flammang reassigns Medicare benefits to Creve Coeur Family Medicine, LLC (Creve Coeur, 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 Allison Flammang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Allison Flammang 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 5 other insurers list Allison Flammang 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 Allison Flammang affiliated with any hospitals?
According to CMS data, Allison Flammang is affiliated with Mercy Hospital St Louis, Missouri Baptist Medical Center and St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Allison Flammang was last updated on August 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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. Allison Claire Flammang, D.O. · NPI 1154760163
Family Medicine physician in Creve Coeur, Missouri. Individual provider, active in the CMS NPPES registry since June 24, 2013.
## Identity
- **NPI:** 1154760163 (Entity type: Individual)
- **Enumerated:** June 24, 2013
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 2016014433 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 11550 OLIVE BLVD STE 120, Creve Coeur, MO 63141-7111
- **Phone:** (314) 525-2590 · **Fax:** (314) 590-5943
## 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:** Creve Coeur Family Medicine, LLC (NPI 1801146766, Creve Coeur, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** August 3, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1154760163) · Data from the CMS NPPES public registry.