DR. JUSTIN GAWRON KNITTEL MD
NPI 1104053032
Anesthesiology - Critical Care Medicine in Saint Louis, MO
About Dr. Justin Gawron Knittel Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JUSTIN GAWRON KNITTEL MD (NPI 1104053032) is an individual critical care medicine provider in Saint Louis, Missouri, licensed in Missouri (2013039276) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2009).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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. Justin Gawron Knittel 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 Justin Knittel 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 63110
- Reassigned Medicare billing, Missouri enrollment
- 405 clinicians in this Medicare group
Saint Louis, MO 63108
- Reassigned Medicare billing, Illinois enrollment
- 530 clinicians in this Medicare group
Saint Louis, MO 63131
- Reassigned Medicare billing, Missouri enrollment
- 82 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 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOOther 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 Justin Knittel's NPI number?
The NPI number for Justin Knittel is 1104053032. It was assigned to this individual provider in the NPPES registry on June 18, 2009.
Where is Justin Knittel located?
Justin Knittel practices at 1 Barnes Jewish Hospital Plz Dept Anesthesiology, Saint Louis, MO 63110. The listed phone number is (800) 862-9980.
What is Justin Knittel's specialty?
The primary specialty registered for this NPI is Anesthesiology, specializing in Critical Care Medicine, with taxonomy code 207LC0200X.
Is Justin Knittel enrolled in Medicare?
Yes. Justin Knittel 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 Justin Knittel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Knittel reassigns Medicare benefits to 3 organizations: Washington University (Saint Louis, MO), Washington University Physicians In Illinois, Inc (Saint Louis, MO) and Missouri Baptist Medical Center (Saint Louis, 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 Justin Knittel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Justin Knittel affiliated with any hospitals?
According to CMS data, Justin Knittel is affiliated with Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Justin Knittel was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. Justin Gawron Knittel, MD · NPI 1104053032
Critical Care Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 18, 2009.
## Identity
- **NPI:** 1104053032 (Entity type: Individual)
- **Enumerated:** June 18, 2009
- **Primary specialty:** Anesthesiology - Critical Care Medicine · taxonomy 207LC0200X
- **State license:** 2013039276 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY, Saint Louis, MO 63110-1003
- **Phone:** (800) 862-9980 · **Fax:** (314) 362-1185
## 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): Washington University (NPI 1528005642, Saint Louis, MO); Washington University Physicians In Illinois, Inc (NPI 1457203135, Saint Louis, MO); Missouri Baptist Medical Center (NPI 1467461434, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, class of 2009
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 200015703 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1104053032) · Data from the CMS NPPES public registry.