DR. DIANA A. PRABLEK MD
NPI 1588689541
Internal Medicine in Saint Louis, MO
About Dr. Diana A. Prablek Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DIANA A. PRABLEK MD (NPI 1588689541) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (109302) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Dallas, and is a graduate of University Of Texas Southwestern Medical School At Dallas (1988).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
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. Diana A. Prablek 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
4Medicare enrollment records show Diana Prablek reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63144
- Reassigned Medicare billing, Missouri enrollment
- 61 clinicians in this Medicare group
Black Jack, MO 63033
- Reassigned Medicare billing, Missouri enrollment
- 2 clinicians in this Medicare group
Springfield, MO 65807
- Reassigned Medicare billing, Missouri enrollment
- 1,565 clinicians in this Medicare group
Oak Ridge, TN 37830
- Reassigned Medicare billing, Missouri enrollment
- 193 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 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 Diana Prablek's NPI number?
The NPI number for Diana Prablek is 1588689541. It was assigned to this individual provider in the NPPES registry on July 12, 2006. The provider is also known as Diana Alicia Mederos MD.
Where is Diana Prablek located?
Diana Prablek practices at 850 Deaver Ln, Saint Louis, MO 63141. The listed phone number is (314) 941-4896.
What is Diana Prablek's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Diana Prablek enrolled in Medicare?
Yes. Diana Prablek 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 Diana Prablek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Prablek reassigns Medicare benefits to 4 organizations: Vpa PC (Saint Louis, MO), Ameriwound Physicians Mo LLC (Black Jack, MO), Mercy Clinic Springfield Communities (Springfield, MO) and Southeastern Physician Services PC (Oak Ridge, TN). 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 Diana Prablek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diana Prablek accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter of Oklahoma and Ambetter of Tennessee and 2 other insurers list Diana Prablek 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 Diana Prablek was last updated on October 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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. Diana A. Prablek, MD · NPI 1588689541
Internal Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since July 12, 2006.
## Identity
- **NPI:** 1588689541 (Entity type: Individual)
- **Enumerated:** July 12, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 109302 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 850 DEAVER LN, Saint Louis, MO 63141-7732
- **Phone:** (314) 941-4896
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Vpa PC (NPI 1073130142, Saint Louis, MO); Ameriwound Physicians Mo LLC (NPI 1538046081, Black Jack, MO); Mercy Clinic Springfield Communities (NPI 1245277631, Springfield, MO); Southeastern Physician Services PC (NPI 1083835441, Oak Ridge, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Southwestern Medical School At Dallas, class of 1988
## Record status
- **NPPES last updated:** October 9, 2026
- **Other identifiers:** Medicaid 208051730 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1588689541) · Data from the CMS NPPES public registry.