Harold Edward Bays, MD
Endocrinology, Diabetes & Metabolism Physician · Louisville, KY
Harold Edward Bays, MD is an endocrinology, diabetes & metabolism physician with a practice address in Louisville, Kentucky, and NPI 1316953920, issued on Aug 1, 2006. Check the license (Kentucky 24037, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Harold Edward Bays
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 24037 KY
Self-reported in NPPES; status is on the state search - Practice location
- 3288 Illinois Ave, Louisville, KY 40213
- Phone
- (502) 515-6621
- Enumerated
- Aug 1, 2006
- Record last updated
- Sep 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (502) 515-6620
- Medicaid ID
- 64240377 KY
- Medicare enrollment
- Enrolled (PECOS I20211022002476); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 107 in Kentucky → Look up another NPI →
Also registered at 3288 Illinois Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Audrey Canary, APRNNurse Practitioner1235944109
- Taylor CodeyFamily Nurse Practitioner1811491343
- Laken HeitzFamily Nurse Practitioner1104604149
Verify Harold Edward Bays in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 24037Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $53,008.22
49 payments; by number, the most common kind was travel and lodging; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Bills Medicare through one group practice
- University OF Louisville Physicians IncLouisville, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harold Edward Bays among 107 endocrinology, diabetes & metabolism physician records in Kentucky
Harold Edward Bays, MD is one of 107 endocrinology, diabetes & metabolism physician records with a practice address in Kentucky. 80% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 50% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1984 · median 2004 among the 79 with a school on file
- Record last updated2021 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Kentucky
There are 107 endocrinology, diabetes & metabolism physician records in Kentucky.
All 107 in Kentucky → Every provider in Louisville → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Jahangir Cyrus, M.D.Louisville, KY 402121558306092
- Christopher Alcorn, DOLouisville, KY 402171104385145
- Stephen Cavanah, MDLouisville, KY 402171427045723
- Swapna Deo, MDLouisville, KY 402171821053489
- Kailash Sabharwal, MDLouisville, KY 402171538114418
- Jonathan Sagum, MDLouisville, KY 402171629236658
- Carol ToumaLouisville, KY 402171659597466
- Charles Hoffman, M.D.Louisville, KY 402071114911039
Common questions
What is Harold Edward Bays, MD's NPI number?
Harold Edward Bays, MD's National Provider Identifier (NPI) is 1316953920, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Harold Edward Bays, MD located?
The NPPES record lists a practice address at 3288 Illinois Ave, Louisville, KY, 40213. Phone: (502) 515-6621. Providers update this record themselves, so call before visiting.
How can I verify Harold Edward Bays, MD's license?
NPPES lists Kentucky license number 24037, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. 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.