Mark Snell, D.O.
NPI 1427025600 · Family Medicine Physician · Clinton, MO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Snell, D.O. is a Family Medicine Physician provider in Clinton, MO (NPI 1427025600).
Provider details
- NPI number
- 1427025600
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- R8A33 (MO)
Specialties & taxonomies
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
109 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) |
|---|---|---|
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 68 | $120 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 | 41 | $152 |
Typical Medicare-allowed amounts for these services range $120–$152 (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 · 201 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 935 | 122 |
| Losartan Potassium | 588 | 94 |
| Atorvastatin Calcium | 569 | 104 |
| Amlodipine Besylate | 551 | 99 |
| Potassium Chloride | 487 | 61 |
| Pravastatin Sodium | 468 | 83 |
| Lisinopril | 458 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$389 across 23 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
- 2006-03-07
- Last updated
- 2021-11-16
- Certified
- 2021-11-16
Frequently asked questions
- What is Mark Snell's NPI number?
- Mark Snell's National Provider Identifier (NPI) is 1427025600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Snell's specialty?
- Mark Snell is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Snell located?
- Mark Snell's practice location on file with NPPES is 1602 N 2nd St, Clinton, MO 64735-1192.
- What is Mark Snell's phone number?
- The practice phone number listed in the NPPES registry for Mark Snell is (660) 885-8171.
- Does Mark Snell accept Medicare?
- Mark Snell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Snell's NPI active?
- Yes — Mark Snell's NPI (1427025600) is active in the NPPES registry as of the last update on 2021-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.