John R. Blackwell, M.D.
Diagnostic Radiology Physician · Meridian, MS
John R. Blackwell, M.D. is a diagnostic radiology physician with a practice address in Meridian, Mississippi, and NPI 1831170208, issued on Nov 10, 2005. Check the license (Mississippi 18848, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- John R. Blackwell
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 18848 MS
Self-reported in NPPES; status is on the state search - Practice location
- 1203 24TH Ave, Meridian, MS 39301
- Phone
- (601) 693-5862
- Enumerated
- Nov 10, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (601) 693-9314
- Medicaid ID
- 09257847 MS
- Medicare enrollment
- Enrolled (PECOS I20200116001450); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 1999
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 247 in Mississippi → Look up another NPI →
Also registered at 1203 24TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Armstrong, D.O.Diagnostic Radiology Physician1770564411
- Rachel Chard, M.D.Diagnostic Radiology Physician1790958213
- Amy Coleman, M.D.Diagnostic Radiology Physician1770512303
- Mary Cowart, M.D.Diagnostic Radiology Physician1124009840
- Michael Thaggard, M.D.Diagnostic Radiology Physician1659352011
Verify John R. Blackwell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 18848Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 82.2 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).
Bills Medicare through one group practice
- Administrators OF The Tulane Educational FundNew Orleans, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John R. Blackwell among 247 diagnostic radiology physician records in Mississippi
John R. Blackwell, M.D. is one of 247 diagnostic radiology physician records with a practice address in Mississippi. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1999 · median 2001 among the 166 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Mississippi
There are 247 diagnostic radiology physician records in Mississippi.
All 247 in Mississippi → Every provider in Meridian → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- William Armstrong, D.O.Meridian, MS 393011770564411
- Rachel Chard, M.D.Meridian, MS 393011790958213
- Amy Coleman, M.D.Meridian, MS 393011770512303
- Mary Cowart, M.D.Meridian, MS 393011124009840
- James KenneyMeridian, MS 393011982696415
- Sandra Pupa, M.D.Meridian, MS 393011558369645
- Charles Ray, M.D.Meridian, MS 393011558342279
- Michael Thaggard, M.D.Meridian, MS 393011659352011
Common questions
What is John R. Blackwell, M.D.'s NPI number?
John R. Blackwell, M.D.'s National Provider Identifier (NPI) is 1831170208, issued on Nov 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John R. Blackwell, M.D. located?
The NPPES record lists a practice address at 1203 24TH Ave, Meridian, MS, 39301. Phone: (601) 693-5862. Providers update this record themselves, so call before visiting.
How can I verify John R. Blackwell, M.D.'s license?
NPPES lists Mississippi license number 18848, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is John R. Blackwell, M.D.'s MIPS final score?
The 2023 MIPS final score is 82.2 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.