Jack Clark, M.D.
NPI 1902992837 · Internal Medicine Physician · Rexburg, ID
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Clark, M.D. is a Internal Medicine Physician provider in Rexburg, ID (NPI 1902992837).
Provider details
- NPI number
- 1902992837
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- M-7743 (ID)
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
19 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
251 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 65 | $73 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 46 | $109 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 42 | $106 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 29 | $160 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 18 | $120 |
| Critical Care, First 30-74 Minutes99291 | 18 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Warfarin Sodium | 51 | — |
| Gabapentin | 48 | — |
| Duloxetine Hcl | 44 | — |
| Trazodone Hcl | 42 | — |
| Atorvastatin Calcium | 40 | — |
| Sertraline Hcl | 39 | — |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$80 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)
- 166 S 5th StSuite BMontpelier, ID 83254-1557Phone: (208) 847-1110Fax: (208) 847-0228
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2020-04-13
- Certified
- 2020-04-13
Frequently asked questions
- What is Jack Clark's NPI number?
- Jack Clark's National Provider Identifier (NPI) is 1902992837, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Clark's specialty?
- Jack Clark is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Clark located?
- Jack Clark's practice location on file with NPPES is 450 E Main St, Rexburg, ID 83440.
- What is Jack Clark's phone number?
- The practice phone number listed in the NPPES registry for Jack Clark is (208) 359-6419.
- Does Jack Clark accept Medicare?
- Jack Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Clark's NPI active?
- Yes — Jack Clark's NPI (1902992837) is active in the NPPES registry as of the last update on 2020-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.