NPPES file of Aug 9, 2026

James Frank Riddle, MD

Psychiatry Physician · Columbia, SC

James Frank Riddle, MD is a psychiatry physician with a practice address in Columbia, South Carolina, and NPI 1225003973, issued on Feb 17, 2006. Check the license (South Carolina 13399, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225003973
Name
James Frank Riddle
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
13399 SC
Self-reported in NPPES; status is on the state search
Practice location
125 Alpine Circle, Columbia, SC 29223
Phone
(803) 779-3549
Enumerated
Feb 17, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(803) 779-7055
Medicaid IDs
400186 SC
133992 SC
Medicare enrollment
Enrolled (PECOS I20050503000999); accepts Medicare assignment
Medical or professional school
Medical University Of South Carolina College Of Medicine, 1986
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 125 Alpine Circle

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Bank, MDPsychiatry Physician1982678686
  2. James Claytor, MDChild & Adolescent Psychiatry Physician1558335281
  3. Martha Freibert, MDPsychiatry Physician1144295874
  4. Warren Garrison, MDPsychiatry Physician1922073659
  5. E Hickman, LISW CP APClinical Social Worker1619922747
  6. Jaime Koenig, MDPsychiatry Physician1992779607

Verify James Frank Riddle in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 13399
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.4 times the Medicare Part D claims of the average psychiatry physician in 2024

2,403 Medicare Part D claims for 99 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. James Riddle2,403
  2. Specialty average1,000

Most prescribed

  1. Invega Sustenna139 claims
  2. Trazodone Hcl134 claims
  3. Haloperidol Decanoate113 claims
  4. Benztropine Mesylate109 claims
  5. Olanzapine92 claims
  6. Clozapine91 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.

Industry payments in 2024: $1,181.36

59 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Riddle$1,181.36
  2. Specialty average$4,954.93

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

  1. South Carolina Dept OF Mental Health Accounting OfficeColumbia, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

James Frank Riddle among 891 psychiatry physician records in South Carolina

James Frank Riddle, MD is one of 891 psychiatry physician records with a practice address in South Carolina. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 63% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated1986 · median 2007 among the 365 with a school on file
  • Record last updated2007 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

171 psychiatry physician records list a practice address in Columbia

They are 171 of the 11,200 NPPES records with a practice address in Columbia, and 891 psychiatry physician records in South Carolina.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Robert Bank, MDColumbia, SC 292231982678686
  2. Martha Freibert, MDColumbia, SC 292231144295874
  3. Warren Garrison, MDColumbia, SC 292231922073659
  4. Melissa Kannaday, M.D.Columbia, SC 292231760681902
  5. Jaime Koenig, MDColumbia, SC 292231992779607
  6. Kevin Krebs, M.D.Columbia, SC 292231730159047
  7. Aziz Mohiuddin, MDColumbia, SC 292231982678660
  8. Ellie Mozingo, MDColumbia, SC 292231316912066

Common questions

What is James Frank Riddle, MD's NPI number?

James Frank Riddle, MD's National Provider Identifier (NPI) is 1225003973, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Frank Riddle, MD located?

The NPPES record lists a practice address at 125 Alpine Circle, Columbia, SC, 29223. Phone: (803) 779-3549. Providers update this record themselves, so call before visiting.

How can I verify James Frank Riddle, MD's license?

NPPES lists South Carolina license number 13399, 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 James Frank Riddle, MD prescribe under Medicare Part D?

In 2024, James Frank Riddle, MD had 2,403 Medicare Part D claims for 99 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

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.