ARMIN KRVAVAC M.D.
NPI 1134482490
Internal Medicine - Critical Care Medicine in Saint Louis, MO
About Armin Krvavac M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARMIN KRVAVAC M.D. (NPI 1134482490) is an individual critical care medicine provider in Saint Louis, Missouri, licensed in Missouri (2015018687) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Armin Krvavac M.d. 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 Reassignments
5Medicare enrollment records show Armin Krvavac reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 26 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 77 clinicians in this Medicare group
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- 263 clinicians in this Medicare group
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 clinicians in this Medicare group
Columbia, MO 65212
- Reassigned Medicare billing, Missouri enrollment
- 1,395 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, MOMercy Hospital Jefferson
Acute Care Hospitals · Festus, MOUniversity Of Missouri Health Care
Acute Care Hospitals · Columbia, 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.
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.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
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 Armin Krvavac's NPI number?
The NPI number for Armin Krvavac is 1134482490. It was assigned to this individual provider in the NPPES registry on June 21, 2012.
Where is Armin Krvavac located?
Armin Krvavac practices at 621 S New Ballas Rd Ste 228A, Saint Louis, MO 63141. The listed phone number is (314) 251-4966.
What is Armin Krvavac's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Armin Krvavac enrolled in Medicare?
Yes. Armin Krvavac 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 organizations bill Medicare for Armin Krvavac's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Armin Krvavac reassigns Medicare benefits to 5 organizations: Mercy Clinic Pulmonology - St. Louis, LLC (Saint Louis, MO), Mercy Clinic Adult Critical Care, LLC (Saint Louis, MO), Mercy Aco Clinical Services Inc (Chesterfield, MO), Ssm Health Care Group (Saint Louis, MO) and The Curators Of The University Of Missouri (Columbia, 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 Armin Krvavac's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Armin Krvavac 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 Armin Krvavac 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 Armin Krvavac affiliated with any hospitals?
According to CMS data, Armin Krvavac is affiliated with Mercy Hospital St Louis, Mercy Hospital Jefferson and University Of Missouri Health Care.
When was this NPI record last updated?
The NPPES record for Armin Krvavac was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Armin Krvavac, M.D. · NPI 1134482490
Critical Care Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 21, 2012.
## Identity
- **NPI:** 1134482490 (Entity type: Individual)
- **Enumerated:** June 21, 2012
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 2015018687 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 621 S NEW BALLAS RD STE 228A, Saint Louis, MO 63141-8256
- **Phone:** (314) 251-4966 · **Fax:** (314) 251-4588
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Mercy Clinic Pulmonology - St. Louis, LLC (NPI 1821137886, Saint Louis, MO); Mercy Clinic Adult Critical Care, LLC (NPI 1730119421, Saint Louis, MO); Mercy Aco Clinical Services Inc (NPI 1063965093, Chesterfield, MO); Ssm Health Care Group (NPI 1306589544, Saint Louis, MO); The Curators Of The University Of Missouri (NPI 1235126921, Columbia, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Missouri, Columbia School Of Medicine, class of 2012
## Record status
- **NPPES last updated:** July 31, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1134482490) · Data from the CMS NPPES public registry.