SADASHIV SANTOSH MD
NPI 1366653891
Internal Medicine - Critical Care Medicine in Saint Louis, MO
About Sadashiv Santosh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SADASHIV SANTOSH MD (NPI 1366653891) is an individual critical care medicine provider in Saint Louis, Missouri, licensed in Wisconsin (69065) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Allegheny General Hospital, and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
Sadashiv Santosh 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
5Medicare enrollment records show Sadashiv Santosh reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 255 clinicians in this Medicare group
Mount Pleasant, WI 53405
- Reassigned Medicare billing, Wisconsin enrollment
- 72 clinicians in this Medicare group
West Allis, WI 53227
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 22 clinicians in this Medicare group
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
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 4
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.
Allegheny General Hospital
Acute Care Hospitals · Pittsburgh, PAAscension Columbia St Mary's Hospital Milwaukee
Acute Care Hospitals · Milwaukee, WIAurora St Lukes Medical Center
Acute Care Hospitals · Milwaukee, WIAurora Medical Center
Acute Care Hospitals · Grafton, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 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 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Sadashiv Santosh's NPI number?
The NPI number for Sadashiv Santosh is 1366653891. It was assigned to this individual provider in the NPPES registry on May 25, 2007.
Where is Sadashiv Santosh located?
Sadashiv Santosh practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. The listed phone number is (314) 362-5060.
What is Sadashiv Santosh's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Sadashiv Santosh enrolled in Medicare?
Yes. Sadashiv Santosh 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 Sadashiv Santosh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sadashiv Santosh reassigns Medicare benefits to 5 organizations: Cogent Healthcare Of Missouri, Inc (Fenton, MO), Midwest Critical Care Sc (Mount Pleasant, WI), Aurora Medical Group, Inc. (West Allis, WI), Greater Milwaukee Critical Care And Pulmonary Associates Sc (Milwaukee, WI) and Sadashiv Santosh MD LLC (Milwaukee, WI). 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 Sadashiv Santosh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sadashiv Santosh accept?
Health plans from CareSource (Common Ground Healthcare) list Sadashiv Santosh 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 Sadashiv Santosh affiliated with any hospitals?
According to CMS data, Sadashiv Santosh is affiliated with Allegheny General Hospital, Ascension Columbia St Mary's Hospital Milwaukee, Aurora St Lukes Medical Center and Aurora Medical Center.
When was this NPI record last updated?
The NPPES record for Sadashiv Santosh was last updated on January 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Sadashiv Santosh, MD · NPI 1366653891
Critical Care Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since May 25, 2007.
## Identity
- **NPI:** 1366653891 (Entity type: Individual)
- **Enumerated:** May 25, 2007
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 69065 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BARNES JEWISH HOSPITAL PLZ, Saint Louis, MO 63110-1003
- **Phone:** (314) 362-5060
## 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): Cogent Healthcare Of Missouri, Inc (NPI 1780961599, Fenton, MO); Midwest Critical Care Sc (NPI 1093425647, Mount Pleasant, WI); Aurora Medical Group, Inc. (NPI 1457592735, West Allis, WI); Greater Milwaukee Critical Care And Pulmonary Associates Sc (NPI 1952569816, Milwaukee, WI); Sadashiv Santosh MD LLC (NPI 1821871427, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** January 23, 2024
- **Other identifiers:** Medicaid 100263006 (WI); Medicaid 100077549 (WI)
---
Source: [NPI Profile](https://npiprofile.com/npi/1366653891) · Data from the CMS NPPES public registry.