Leroy Clark, M.D
NPI 1578527115 · Family Medicine Physician · Sisseton, SD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leroy Clark, M.D is a Family Medicine Physician provider in Sisseton, SD (NPI 1578527115).
Provider details
- NPI number
- 1578527115
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 5019 (SD)
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
20 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
206 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 129 | $64 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 40 | $94 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 37 | $34 |
Typical Medicare-allowed amounts for these services range $34–$94 (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 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 157 | 33 |
| Atorvastatin Calcium | 137 | 38 |
| Lisinopril | 120 | 28 |
| Semaglutidebrand: Ozempic | 87 | 15 |
| Losartan Potassium | 86 | 26 |
| Potassium Chloride | 84 | 24 |
| Hydrochlorothiazide | 71 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-12
- Last updated
- 2012-09-05
Frequently asked questions
- What is Leroy Clark's NPI number?
- Leroy Clark's National Provider Identifier (NPI) is 1578527115, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leroy Clark's specialty?
- Leroy Clark is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leroy Clark located?
- Leroy Clark's practice location on file with NPPES is 100 Lake Traverse Dr, Sisseton, SD 57262-7046.
- What is Leroy Clark's phone number?
- The practice phone number listed in the NPPES registry for Leroy Clark is (605) 698-7606.
- Does Leroy Clark accept Medicare?
- Leroy Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leroy Clark's NPI active?
- Yes — Leroy Clark's NPI (1578527115) is active in the NPPES registry as of the last update on 2012-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.