John Dudley Foss, M.D.
Internal Medicine Physician · Jackson, MS
John Dudley Foss, M.D. is an internal medicine physician with a practice address in Jackson, Mississippi, and NPI 1437221876, issued on Nov 14, 2006. Check the license (Mississippi 17265, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- John Dudley Foss
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 17265 MS
Self-reported in NPPES; status is on the state search - Practice location
- 501 Marshall St, Jackson, MS 39202
- Phone
- (601) 352-2273
- Enumerated
- Nov 14, 2006
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (601) 206-6052
- Medicaid ID
- 00012476 MS
- Medicare enrollment
- Enrolled (PECOS I20101030000124); accepts Medicare assignment
- Medical or professional school
- University Of Alabama School Of Medicine, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 972 in Mississippi → Look up another NPI →
Also registered at 501 Marshall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- George Copeland, M.D.Surgery Physician1326153149
- Lynne Currie, NPNurse Practitioner1922147123
- Alianne Dearman, FNPFamily Nurse Practitioner1205653367
Verify John Dudley Foss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 17265Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
7,991 Medicare Part D claims for 1,286 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 766 claims were for opioids.
Most prescribed
- Atorvastatin Calcium491 claims
- Hydrocodone-Acetaminophen359 claims
- Levothyroxine Sodium259 claims
- Amlodipine Besylate248 claims
- Lisinopril224 claims
- Rosuvastatin Calcium191 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Dudley Foss among 972 internal medicine physician records in Mississippi
John Dudley Foss, M.D. is one of 972 internal medicine physician records with a practice address in Mississippi. 82% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 63% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1998 · median 2008 among the 585 with a school on file
- Record last updated2021 · 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 207R00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
328 internal medicine physician records list a practice address in Jackson
They are 328 of the 6,997 NPPES records with a practice address in Jackson, and 972 internal medicine physician records in Mississippi.
All 972 in Mississippi → Every provider in Jackson → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christina Barlow, M.D.Jackson, MS 392021043244510
- Jon Beall, M.D.Jackson, MS 392021922179548
- Freeman Bennett, M.D.Jackson, MS 392021750326724
- Nancy Campbell, M.D.Jackson, MS 392021558432005
- Katheryn Del Castillo-Arceo, M.D.Jackson, MS 392021609945716
- Gordon Delashmet, M.D.Jackson, MS 392021538104757
- Matthew George, M.D.Jackson, MS 392021659383297
- Jessie George, M.D.Jackson, MS 392021881606440
Common questions
What is John Dudley Foss, M.D.'s NPI number?
John Dudley Foss, M.D.'s National Provider Identifier (NPI) is 1437221876, issued on Nov 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Dudley Foss, M.D. located?
The NPPES record lists a practice address at 501 Marshall St, Jackson, MS, 39202. Phone: (601) 352-2273. Providers update this record themselves, so call before visiting.
How can I verify John Dudley Foss, M.D.'s license?
NPPES lists Mississippi license number 17265, 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.
How much does John Dudley Foss, M.D. prescribe under Medicare Part D?
In 2024, John Dudley Foss, M.D. had 7,991 Medicare Part D claims for 1,286 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.