Peter Westman, MD
NPI 1346866902 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Westman, MD is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1346866902).
Provider details
- NPI number
- 1346866902
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2023002793 (MO)
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 tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,664 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 288 | $123 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 273 | $9 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 171 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 159 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 157 | $87 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 93 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 320 | 124 |
| Amlodipine Besylate | 246 | 88 |
| Rosuvastatin Calcium | 213 | 83 |
| Levothyroxine Sodium | 165 | 55 |
| Losartan Potassium | 131 | 52 |
| Tirzepatidebrand: Mounjaro | 123 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$85 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3015 N Ballas RdSaint Louis, MO 63131-2329Phone: (314) 996-5772
Registry dates
- Enumerated
- 2020-06-19
- Last updated
- 2023-06-28
- Certified
- 2023-06-28
Frequently asked questions
- What is Peter Westman's NPI number?
- Peter Westman's National Provider Identifier (NPI) is 1346866902, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Westman's specialty?
- Peter Westman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Westman located?
- Peter Westman's practice location on file with NPPES is 3009 N Ballas Rd Ste 227a, Saint Louis, MO 63131-2308.
- What is Peter Westman's phone number?
- The practice phone number listed in the NPPES registry for Peter Westman is (314) 996-7800.
- Does Peter Westman accept Medicare?
- Peter Westman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Westman's NPI active?
- Yes — Peter Westman's NPI (1346866902) is active in the NPPES registry as of the last update on 2023-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.