Nathaniel Clark, P.A.
NPI 1063660074 · Physician Assistant · Carbondale, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Clark, P.A. is a Physician Assistant provider in Carbondale, IL (NPI 1063660074).
Provider details
- NPI number
- 1063660074
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- Sole proprietor
- No
- License
- 085-003278 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,785 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 | 550 | $78 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 438 | $110 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 333 | $12 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 154 | $6 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 105 | $68 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 324 | 89 |
| Carvedilol | 254 | 65 |
| Metoprolol Succinate | 185 | 68 |
| Amiodarone Hcl | 181 | 56 |
| Atorvastatin Calcium | 152 | 64 |
| Losartan Potassium | 139 | 44 |
| Metoprolol Tartrate | 133 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,006 across 94 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
Additional practice locations (3)
- 100 Dr Warren Tuttle DrHarrisburg, IL 62946-2718Phone: (618) 529-4455Fax: (618) 351-1287
- 217 S Park Ave Ste 2Herrin, IL 62948-3611Phone: (618) 529-4455Fax: (618) 351-1287
- 3905 W Ernestine DrMarion, IL 62959-5800Phone: (618) 529-4455Fax: (618) 351-1287
Registry dates
- Enumerated
- 2008-09-03
- Last updated
- 2022-12-21
- Certified
- 2022-12-21
Frequently asked questions
- What is Nathaniel Clark's NPI number?
- Nathaniel Clark's National Provider Identifier (NPI) is 1063660074, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Clark's specialty?
- Nathaniel Clark is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nathaniel Clark located?
- Nathaniel Clark's practice location on file with NPPES is 409 W Oak St, Carbondale, IL 62901-1464.
- What is Nathaniel Clark's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Clark is (618) 529-4455.
- Does Nathaniel Clark accept Medicare?
- Nathaniel Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Clark's NPI active?
- Yes — Nathaniel Clark's NPI (1063660074) is active in the NPPES registry as of the last update on 2022-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.