Rand Sommer, M.D.
NPI 1861484784 · Internal Medicine Physician · Chesterfield, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rand Sommer, M.D. is a Internal Medicine Physician provider in Chesterfield, MO (NPI 1861484784).
Provider details
- NPI number
- 1861484784
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MDR3D27 (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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,608 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 593 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 355 | $125 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 344 | $123 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 74 | $75 |
| Administration of Influenza Virus VaccineG0008 | 57 | $31 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 208 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 833 | 235 |
| Levothyroxine Sodium | 488 | 130 |
| Rosuvastatin Calcium | 450 | 138 |
| Atorvastatin Calcium | 439 | 122 |
| Losartan Potassium | 345 | 86 |
| Pantoprazole Sodium | 326 | 86 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$682 across 34 records (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
Registry dates
- Enumerated
- 2005-08-17
- Last updated
- 2018-04-04
Frequently asked questions
- What is Rand Sommer's NPI number?
- Rand Sommer's National Provider Identifier (NPI) is 1861484784, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rand Sommer's specialty?
- Rand Sommer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rand Sommer located?
- Rand Sommer's practice location on file with NPPES is 121 Saint Lukes Center Dr Ste 506, Chesterfield, MO 63017-3519.
- What is Rand Sommer's phone number?
- The practice phone number listed in the NPPES registry for Rand Sommer is (314) 576-8102.
- Does Rand Sommer accept Medicare?
- Rand Sommer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rand Sommer's NPI active?
- Yes — Rand Sommer's NPI (1861484784) is active in the NPPES registry as of the last update on 2018-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.