DR. WALTER LIN (MD, MBA) – Internal Medicine Physician, NPI 1952481913
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,186 INTERNAL MEDICINE in MO
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Provider Addresses for DR. WALTER LIN (MD, MBA)
Olive Boulevard, Chesterfield, Saint Louis County, Missouri, 631462, United States
SUITE 235
SAINT LOUIS, MO 631417143
Phone: (314) 925-0903
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2020-12-05
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20150317000993 | I | Internal Medicine | MO | TBD |
| I20201205000160 | I | Internal Medicine | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 185 | 115 | $0 |
| 99497 | Advance care planning, first 30 minutes | 184 | 168 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 179 | 151 | $0 |
| 99310 | Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 109 | 86 | $0 |
| G0180 | Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 85 | 58 | $0 |
Insurance plans in this area (ZIP 63141)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | OH | |
| Nurse Practitioner | MO | |
| - | TN | |
| Family Practice | OH | |
| Internal Medicine | VA | |
| Nurse Practitioner | OH | |
| Nurse Practitioner | OH | |
| Nurse Practitioner | VA | |
| Nurse Practitioner | VA | |
| Nurse Practitioner | MO |
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