John Thomas Herion, D.O.
Internal Medicine Physician · Greenville, SC
John Thomas Herion, D.O. is an internal medicine physician with a practice address in Greenville, South Carolina, and NPI 1902331275, issued on Apr 25, 2017. Check the license (South Carolina 40716, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Thomas Herion
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 40716 SC
Self-reported in NPPES; status is on the state search - Practice location
- 701 Grove RD, Greenville, SC 29605
- Phone
- (864) 455-7882
- Enumerated
- Apr 25, 2017
- Record last updated
- Jul 21, 2022
- Fax
- (864) 455-5008
- Medicare enrollment
- Enrolled (PECOS I20220519001155); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,881 in South Carolina → Look up another NPI →
Also registered at 701 Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brian Allen, D.O.Hospitalist Physician1184851495
- Dawn Allen, NNPCritical Care Neonatal Nurse Practitioner1164836227
Verify John Thomas Herion in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 40716Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,057 Medicare Part D claims for 264 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 17 claims were for opioids.
Most prescribed
- Prednisone233 claims
- Hydroxychloroquine Sulfate199 claims
- Methotrexate92 claims
- Diclofenac Sodium67 claims
- Allopurinol46 claims
- Celecoxib43 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $976.95
25 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Carolina Arthritis Associates PAWilmington, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Thomas Herion among 1,881 internal medicine physician records in South Carolina
John Thomas Herion, D.O. is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 65% of them.
- NPI issued2017 · 65% of these records are older, 31% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2017 · median 2006 among the 1,119 with a school on file
- Record last updated2022 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
253 internal medicine physician records list a practice address in Greenville
They are 253 of the 10,264 NPPES records with a practice address in Greenville, and 1,881 internal medicine physician records in South Carolina.
All 1,881 in South Carolina → Every provider in Greenville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stacy Bizzell, M.D.Greenville, SC 296051427008432
- Barry Blackston, M.D.Greenville, SC 296051316948185
- Mincs Calixte, M.D.Greenville, SC 296051215990338
- Joseph Del Zotto, D.O.Greenville, SC 296051457356776
- W Fridy, M.D.Greenville, SC 296051730139429
- Merrill Gildersleeve, M.D.Greenville, SC 296051215987060
- Paari Gopalakrishnan, MDGreenville, SC 296051316925464
- Meenu Jindal, M.D.Greenville, SC 296051548210149
Common questions
What is John Thomas Herion, D.O.'s NPI number?
John Thomas Herion, D.O.'s National Provider Identifier (NPI) is 1902331275, issued on Apr 25, 2017. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas Herion, D.O. located?
The NPPES record lists a practice address at 701 Grove RD, Greenville, SC, 29605. Phone: (864) 455-7882. Providers update this record themselves, so call before visiting.
How can I verify John Thomas Herion, D.O.'s license?
NPPES lists South Carolina license number 40716, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Thomas Herion, D.O. prescribe under Medicare Part D?
In 2024, John Thomas Herion, D.O. had 1,057 Medicare Part D claims for 264 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John Thomas Herion, D.O.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.