John Herion, D.O.
NPI 1902331275 · Internal Medicine Physician · Greenville, SC
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Herion, D.O. is a Internal Medicine Physician provider in Greenville, SC (NPI 1902331275).
Provider details
- NPI number
- 1902331275
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 40716 (SC)
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
9 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
7,421 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) |
|---|---|---|
| Measurement C-Reactive Protein for Detection of Infection Or Inflammation86140 | 728 | $5 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 710 | $8 |
| Blood Creatinine Level82565 | 676 | $5 |
| Liver Function Blood Test Panel80076 | 662 | $8 |
| Measurement of Antibody for Assessment of Autoimmune Disorder, Any Method86235 | 606 | $18 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 495 | $7 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 233 | 109 |
| Hydroxychloroquine Sulfate | 199 | 74 |
| Methotrexate Sodiumbrand: Methotrexate | 92 | 34 |
| Diclofenac Sodium | 67 | 31 |
| Allopurinol | 46 | 12 |
| Celecoxib | 43 | 25 |
| Leflunomide | 39 | 16 |
| Meloxicam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$977 across 25 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
- 2017-04-25
- Last updated
- 2022-07-21
Frequently asked questions
- What is John Herion's NPI number?
- John Herion's National Provider Identifier (NPI) is 1902331275, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Herion's specialty?
- John Herion is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Herion located?
- John Herion's practice location on file with NPPES is 701 Grove Rd, Greenville, SC 29605-4210.
- What is John Herion's phone number?
- The practice phone number listed in the NPPES registry for John Herion is (864) 455-7882.
- Does John Herion accept Medicare?
- John Herion is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Herion's NPI active?
- Yes — John Herion's NPI (1902331275) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.