Quick answers
- Where does Walter Lin see patients?
- Medicare's clinician data lists 5 practice locations, including Ballwin, MO, Chesterfield, MO and Kirkwood, MO. Call before your visit to confirm the address.
- What is Walter Lin's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Walter Lin accept Medicare assignment?
- Yes. Medicare's clinician data says Walter Lin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Walter Lin?
- (314) 925-0903, as listed in official Medicare / NPI Registry data.
- What is Walter Lin's NPI number?
- 1952481913. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Walter Lin is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Meramec Bluffs DrBallwin, MO 63021 (314) 925‑0903
- 13190 S Outer 40 Rd, Generation Clinical Partners LLCChesterfield, MO 63017 (314) 925‑0903
- 15250 Village View DrChesterfield, MO 63017 (636) 733‑0199
- 351 Forest Summit CtBallwin, MO 63021 (314) 686‑4468
- 505 Couch AveKirkwood, MO 63122 (314) 822‑9911
Group practices
Medicare enrollment lists Walter Lin as a member of these groups (CMS data updated 2026-10-02).
- Pai Participant 1 LLC191 clinicians in the group
- Generation Clinical Partners LLC24 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Ballwin
Clinicians with the same Medicare primary specialty in Ballwin, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Davis School Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952481913 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians