John C. Vallandigham, M.D.
Internal Medicine Physician · Chickasha, OK
John C. Vallandigham, M.D. is an internal medicine physician with a practice address in Chickasha, Oklahoma, and NPI 1265438501, issued on Jun 22, 2005. Check the license (Oklahoma 24142, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- John C. Vallandigham
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 24142 OK
Self-reported in NPPES; status is on the state search - Practice location
- 304 S 29TH St, Chickasha, OK 73018
- Phone
- (405) 896-8058
- Enumerated
- Jun 22, 2005
- Record last updated
- Jul 21, 2022
- Fax
- (855) 223-1999
- Medicaid ID
- 200002950A OK
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 304 S 29TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catina Anderson, A-GNP -CAdult Health Nurse Practitioner1811548894
- Andrew Bratton, PT, DPTPhysical Therapist1285917419
- Sara BusterFamily Nurse Practitioner1265972822
- Keely ChapmanPhysical Therapist1952286916
- Jason ClemonsFamily Nurse Practitioner1548678139
- Thomas Essex, D.O.Internal Medicine Physician1689603151
Verify John C. Vallandigham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 24142Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
20 Medicare Part D claims for 11 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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 MIPS final score for 2023 (Medicare payment program): 91.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
John C. Vallandigham among 1,115 internal medicine physician records in Oklahoma
John C. Vallandigham, M.D. is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% 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, 89% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2022 · 56% 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 Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 internal medicine physician records list a practice address in Chickasha
They are 5 of the 354 NPPES records with a practice address in Chickasha, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Chickasha → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anupama Bekkem, M.D.Chickasha, OK 730181326074485
- Thomas Essex, D.O.Chickasha, OK 730181689603151
- Ross Fisher, MDChickasha, OK 730181568403087
- Karen Maluf, MDChickasha, OK 730181689658601
- Abraham Garcia Ortega, MDNorman, OK 730191336737691
- Micheal MontgomeryCement, OK 730171588450662
- Audrey Goodwin, MDEdmond, OK 730131952661688
- Daniel Lee, MDEdmond, OK 730131336124056
Common questions
What is John C. Vallandigham, M.D.'s NPI number?
John C. Vallandigham, M.D.'s National Provider Identifier (NPI) is 1265438501, issued on Jun 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John C. Vallandigham, M.D. located?
The NPPES record lists a practice address at 304 S 29TH St, Chickasha, OK, 73018. Phone: (405) 896-8058. Providers update this record themselves, so call before visiting.
How can I verify John C. Vallandigham, M.D.'s license?
NPPES lists Oklahoma license number 24142, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John C. Vallandigham, M.D. prescribe under Medicare Part D?
In 2024, John C. Vallandigham, M.D. had 20 Medicare Part D claims for 11 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John C. Vallandigham, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.2 of 100. 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.