NPPES file of Aug 9, 2026

Mark Oliver Jennings, MD

Psychiatry Physician · Chattanooga, TN

Mark Oliver Jennings, MD is a psychiatry physician with a practice address in Chattanooga, Tennessee, and NPI 1598713166, issued on May 5, 2006. Check the license (Tennessee MD0000031714, as entered in NPPES) on the Tennessee 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
1598713166
Name
Mark Oliver Jennings
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
MD0000031714 TN
31714 TN
Self-reported in NPPES; status is on the state search
Practice location
1360 Mackey Branch Dr, Chattanooga, TN 37421
Phone
(423) 443-3336
Enumerated
May 5, 2006
Record last updated
Apr 18, 2024
Fax
(423) 464-7510
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1360 Mackey Branch Dr

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

  1. Zackary AllredProfessional Counselor1073432944
  2. Airebis BaronProfessional Counselor1851807069
  3. Steven BeatyClinical Social Worker1356890271
  4. Jessica Black, BCBABehavior Analyst1316522071
  5. Hannah BlakeSocial Worker1952007551
  6. Miranda CavittBehavior Technician1104537943

Verify Mark Oliver Jennings in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license MD0000031714
    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 Tennessee 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $535.11

3 payments; by number, the most common kind was food and beverage; the largest payer was Supernus Pharmaceuticals, 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. Mark Jennings$535.11
  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.

Mark Oliver Jennings among 731 psychiatry physician records in Tennessee

Mark Oliver Jennings, MD is one of 731 psychiatry physician records with a practice address in Tennessee. 66% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 53% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileNo · 45% of these records are
  • Record last updated2024 · 51% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Tennessee

There are 731 psychiatry physician records in Tennessee.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Ferdinand Armas, M.D.Chattanooga, TN 374211689654493
  2. Prameet Bhushan, M.D.Chattanooga, TN 374211508084864
  3. Randall Brewer, MDChattanooga, TN 374211255324810
  4. Oscar Canale, MDChattanooga, TN 374211992830558
  5. Jonathan Cohen, MDChattanooga, TN 374211083699219
  6. Kevin Ferguson, M.D.Chattanooga, TN 374211164530036
  7. Oliver Gregory, M.D.Chattanooga, TN 374211588772545
  8. Ahmed Ibrahim, M.D.Chattanooga, TN 374211407188626

Common questions

What is Mark Oliver Jennings, MD's NPI number?

Mark Oliver Jennings, MD's National Provider Identifier (NPI) is 1598713166, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Oliver Jennings, MD located?

The NPPES record lists a practice address at 1360 Mackey Branch Dr, Chattanooga, TN, 37421. Phone: (423) 443-3336. Providers update this record themselves, so call before visiting.

How can I verify Mark Oliver Jennings, MD's license?

NPPES lists Tennessee license number MD0000031714, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.