DR. WALTER LIN MD, MBA
NPI 1952481913
Internal Medicine in Saint Louis, MO
About Dr. Walter Lin Md, Mba NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WALTER LIN MD, MBA (NPI 1952481913) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2014018787) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
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. Walter Lin Md, Mba 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
7Medicare enrollment records show Walter Lin reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63132
- Reassigned Medicare billing, Missouri and Illinois enrollments
- Also billed through NPI 1366050007 (Illinois)
- 27 clinicians in this Medicare group
Bridgeton, MO 63044
- Reassigned Medicare billing, Illinois and Missouri enrollments
- 419 clinicians in this Medicare group
Saint Louis, MO 63119
- Reassigned Medicare billing, Missouri enrollment
Saint Louis, MO 63119
- Reassigned Medicare billing, Missouri enrollment
Waterloo, IL 62298
- Reassigned Medicare billing, Illinois enrollment
Willowbrook, IL 60527
- Reassigned Medicare billing, Illinois enrollment
- 17 clinicians in this Medicare group
Chillicothe, OH 45601
- Reassigned Medicare billing, Missouri enrollment
- 23 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 11
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.
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.
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.
Reported Quality Measures
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CREVE COEUR, 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 Walter Lin's NPI number?
The NPI number for Walter Lin is 1952481913. It was assigned to this individual provider in the NPPES registry on October 16, 2006.
Where is Walter Lin located?
Walter Lin practices at 11500 Olive Blvd Suite 235, Saint Louis, MO 63141. The listed phone number is (314) 925-0903.
What is Walter Lin's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Walter Lin enrolled in Medicare?
Yes. Walter Lin 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 Walter Lin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Walter Lin reassigns Medicare benefits to 7 organizations: Generation Clinical Partners LLC (Saint Louis, MO), Sound Physicians Of Illinois, LLC (Bridgeton, MO), Valuecare Geriatrics 1 PC (Saint Louis, MO), Valuecare Geriatrics 2, P.C. (Saint Louis, MO), Valuecare Geriatrics 3 PC (Waterloo, IL) and 2 more organizations, listed in the Medicare section above. 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 Walter Lin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Walter Lin was last updated on January 26, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. Walter Lin, MD, MBA · NPI 1952481913
Internal Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since October 16, 2006.
## Identity
- **NPI:** 1952481913 (Entity type: Individual)
- **Enumerated:** October 16, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 2014018787 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 11500 OLIVE BLVD, SUITE 235, Saint Louis, MO 63141-7143
- **Phone:** (314) 925-0903
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Generation Clinical Partners LLC (NPI 1104235241, Saint Louis, MO); Sound Physicians Of Illinois, LLC (NPI 1043598865, Bridgeton, MO); Valuecare Geriatrics 1 PC (NPI 1891613691, Saint Louis, MO); Valuecare Geriatrics 2, P.C. (NPI 1902725435, Saint Louis, MO); Valuecare Geriatrics 3 PC (NPI 1497673529, Waterloo, IL); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Davis School Of Medicine, class of 1999
## Record status
- **NPPES last updated:** January 26, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1952481913) · Data from the CMS NPPES public registry.