Walter Lin, MD, MBA
NPI 1952481913 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Walter Lin, MD, MBA is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1952481913).
Provider details
- NPI number
- 1952481913
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MBA
- Sex
- Male
- Sole proprietor
- No
- License
- A89450 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
735 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 125 | $175 |
| Advance Care Planning, First 30 Minutes99497 | 120 | $72 |
| 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 andG0180 | 113 | $51 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 69 | $103 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 65 | $147 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 217 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,684 | 112 |
| Amlodipine Besylate | 1,332 | 85 |
| Levothyroxine Sodium | 1,085 | 82 |
| Furosemide | 797 | 90 |
| Lisinopril | 770 | 43 |
| Gabapentin | 721 | 60 |
| Donepezil Hcl | 693 | 48 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2016-01-26
Frequently asked questions
- What is Walter Lin's NPI number?
- Walter Lin's National Provider Identifier (NPI) is 1952481913, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Lin's specialty?
- Walter Lin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Lin located?
- Walter Lin's practice location on file with NPPES is 11500 Olive Blvd, Saint Louis, MO 63141-7143.
- What is Walter Lin's phone number?
- The practice phone number listed in the NPPES registry for Walter Lin is (314) 925-0903.
- Does Walter Lin accept Medicare?
- Walter Lin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Walter Lin's NPI active?
- Yes — Walter Lin's NPI (1952481913) is active in the NPPES registry as of the last update on 2016-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.