Simeon Prager, M.D.
NPI 1851320329 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Simeon Prager, M.D. is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1851320329).
Provider details
- NPI number
- 1851320329
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD105478 (MO)
Specialties & taxonomies
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
441 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 248 | $93 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 116 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $63 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 37 | $136 |
Typical Medicare-allowed amounts for these services range $63–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 154 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 681 | 186 |
| Amlodipine Besylate | 610 | 157 |
| Losartan Potassium | 327 | 88 |
| Metoprolol Succinate | 290 | 73 |
| Lisinopril | 282 | 76 |
| Levothyroxine Sodium | 274 | 71 |
| Omeprazole |
Practice location
Mailing address
Additional practice locations (1)
- 6555 Chippewa StSuite 200Saint Louis, MO 63109-4110Phone: (314) 647-2555Fax: (314) 647-2599
Registry dates
- Enumerated
- 2006-06-30
- Last updated
- 2020-11-20
- Certified
- 2020-11-20
Frequently asked questions
- What is Simeon Prager's NPI number?
- Simeon Prager's National Provider Identifier (NPI) is 1851320329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Simeon Prager's specialty?
- Simeon Prager is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Simeon Prager located?
- Simeon Prager's practice location on file with NPPES is 1035 Bellevue Ave Ste 305, Saint Louis, MO 63117-1845.
- What is Simeon Prager's phone number?
- The practice phone number listed in the NPPES registry for Simeon Prager is (314) 925-4700.
- Does Simeon Prager accept Medicare?
- Simeon Prager is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Simeon Prager's NPI active?
- Yes — Simeon Prager's NPI (1851320329) is active in the NPPES registry as of the last update on 2020-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.