DR. CARLOS JAVIER GUEVARA MD
NPI 1861529299
Radiology - Vascular & Interventional Radiology in Saint Louis, MO
About Dr. Carlos Javier Guevara Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CARLOS JAVIER GUEVARA MD (NPI 1861529299) is an individual vascular & interventional radiology provider in Saint Louis, Missouri, licensed in Missouri (2013015484) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and maintains a secondary practice location in Saint Louis.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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 and accepts Medicare assignment
Dr. Carlos Javier Guevara Md 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
3Medicare enrollment records show Carlos Guevara reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Illinois and Missouri enrollments
- 5 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 373 clinicians in this Medicare group
Rolla, MO 65401
- Reassigned Medicare billing, Missouri enrollment
- 347 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 17
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOBarnes-Jewish West County Hospital
Acute Care Hospitals · Creve Coeur, MOChristian Hospital Northeast
Acute Care Hospitals · Saint Louis, MOBarnes-Jewish St Peters Hospital
Acute Care Hospitals · Saint Peters, MOProgress West Hospital
Acute Care Hospitals · O Fallon, 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.
Other Providers at the Same Location NPPES 4
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
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 Carlos Guevara's NPI number?
The NPI number for Carlos Guevara is 1861529299. It was assigned to this individual provider in the NPPES registry on February 27, 2007.
Where is Carlos Guevara located?
Carlos Guevara practices at 12855 N 40 Dr Ste 205, Saint Louis, MO 63141. The listed phone number is (314) 255-2204.
What is Carlos Guevara's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.
Is Carlos Guevara enrolled in Medicare?
Yes. Carlos Guevara 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 Carlos Guevara's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Guevara reassigns Medicare benefits to 3 organizations: Gomelb Vascular LLC (Saint Louis, MO), Washington University (Saint Louis, MO) and Miracl, LLC (Rolla, 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 Carlos Guevara's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Carlos Guevara accept?
Health plans from Cox HealthPlans list Carlos Guevara 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 Carlos Guevara affiliated with any hospitals?
According to CMS data, Carlos Guevara is affiliated with Barnes Jewish Hospital, Barnes-Jewish West County Hospital, Christian Hospital Northeast, Barnes-Jewish St Peters Hospital and Progress West Hospital.
When was this NPI record last updated?
The NPPES record for Carlos Guevara was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days 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. Carlos Javier Guevara, MD · NPI 1861529299
Vascular & Interventional Radiology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since February 27, 2007.
## Identity
- **NPI:** 1861529299 (Entity type: Individual)
- **Enumerated:** February 27, 2007
- **Primary specialty:** Radiology - Vascular & Interventional Radiology · taxonomy 2085R0204X
- **State license:** 2013015484 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 12855 N 40 DR STE 205, Saint Louis, MO 63141-8670
- **Phone:** (314) 255-2204 · **Fax:** (866) 623-8346
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Gomelb Vascular LLC (NPI 1588146211, Saint Louis, MO); Washington University (NPI 1962442475, Saint Louis, MO); Miracl, LLC (NPI 1205304300, Rolla, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** August 26, 2026
- **Other identifiers:** Medicaid 200004294 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1861529299) · Data from the CMS NPPES public registry.