Mark D. Hays, MD
Pediatric Cardiology Physician · Chattanooga, TN
Mark D. Hays, MD is a pediatric cardiology physician with a practice address in Chattanooga, Tennessee, and NPI 1689692295, issued on Jul 18, 2006. Check the license (Tennessee 34806, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark D. Hays
- Credential
- MD
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License number
- 34806 TN
Self-reported in NPPES; status is on the state search - Practice location
- 6148 Lee Hwy Ste 206, Chattanooga, TN 37421
- Phone
- (423) 498-3300
- Enumerated
- Jul 18, 2006
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 95 in Tennessee → Look up another NPI →
Verify Mark D. Hays in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 34806Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average pediatric cardiology physician in 2024
13 Medicare Part D claims, against an average of 74 among the 518 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $67.77
4 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 1,156 providers of this specialty with any payment received $2,864.57 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mark D. Hays among 95 pediatric cardiology physician records in Tennessee
Mark D. Hays, MD is one of 95 pediatric cardiology physician records with a practice address in Tennessee. 76% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 64% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2018 · 27% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in Tennessee
There are 95 pediatric cardiology physician records in Tennessee.
All 95 in Tennessee → Every provider in Chattanooga → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Gerald Johnson, M.D.Chattanooga, TN 374211194772178
- Wesley Davis, MDChattanooga, TN 374031982817904
- Brandon Morrical, MDChattanooga, TN 374031265796908
- Rajani Anand, M.D.Johnson City, TN 376041821081134
- Lacy Hicks, CPNPJohnson City, TN 376041396465621
- Ashish Madhok, MDJohnson City, TN 376041376533489
- Ashok Mehta, MDJohnson City, TN 376041477515880
- Otto Teixeira, MDJohnson City, TN 376041831184266
Common questions
What is Mark D. Hays, MD's NPI number?
Mark D. Hays, MD's National Provider Identifier (NPI) is 1689692295, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark D. Hays, MD located?
The NPPES record lists a practice address at 6148 Lee Hwy Ste 206, Chattanooga, TN, 37421. Phone: (423) 498-3300. Providers update this record themselves, so call before visiting.
How can I verify Mark D. Hays, MD's license?
NPPES lists Tennessee license number 34806, 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.
How much does Mark D. Hays, MD prescribe under Medicare Part D?
In 2024, Mark D. Hays, MD had 13 Medicare Part D claims; the average among pediatric cardiology physician prescribers was 74. 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.