KATHERINE WELTER M.D.
NPI 1437538311
Hospitalist in Chicago, IL
About Katherine Welter M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE WELTER M.D. (NPI 1437538311) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036.145669) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and maintains a secondary practice location in Chicago.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Secondary Practice Location 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
Katherine Welter 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 Reassignment
Medicare enrollment records show Katherine Welter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 5
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.
Northwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60611 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.
CHICAGO, IL 60611
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 Katherine Welter's NPI number?
The NPI number for Katherine Welter is 1437538311. It was assigned to this individual provider in the NPPES registry on May 25, 2015. The provider is also known as Katherine Lowry M.D..
Where is Katherine Welter located?
Katherine Welter practices at 251 E Huron St Ste 16-738, Chicago, IL 60611. The listed phone number is (312) 926-5924.
What is Katherine Welter's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Katherine Welter enrolled in Medicare?
Yes. Katherine Welter 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 organization bills Medicare for Katherine Welter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Welter reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, IL). The 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 Katherine Welter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Katherine Welter affiliated with any hospitals?
According to CMS data, Katherine Welter is affiliated with Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Katherine Welter was last updated on November 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Katherine Welter, M.D. · NPI 1437538311
Hospitalist physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since May 25, 2015.
## Identity
- **NPI:** 1437538311 (Entity type: Individual)
- **Enumerated:** May 25, 2015
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036.145669 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 251 E HURON ST STE 16-738, Chicago, IL 60611
- **Phone:** (312) 926-5924
## 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:** Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern Illinois University School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** November 24, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1437538311) · Data from the CMS NPPES public registry.