John D. Day, MD
Clinical Cardiac Electrophysiology Physician · Salt Lake City, UT
John D. Day, MD is a clinical cardiac electrophysiology physician with a practice address in Salt Lake City, Utah, and NPI 1811965122, issued on Mar 11, 2006. Check the license (Utah 4849787-1205, as entered in NPPES) on the Utah Medical Licensing Board; the Medicare figures below come from public CMS files.
- Name
- John D. Day
- Credential
- MD
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License numbers
- 4849787-1205 UT
48497871205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 1160 E 3900 S Ste 2000, Salt Lake City, UT 84124
- Phone
- (801) 266-3418
- Enumerated
- Mar 11, 2006
- Record last updated
- Dec 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (801) 266-4174
- Medicaid ID
- D3783 UT
- Medicare enrollment
- Enrolled (PECOS I20031205000031); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 33 in Utah → Look up another NPI →
Also registered at 1160 E 3900 S Ste 2000
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Aberton, A.P.R.N FNPNurse Practitioner1518538842
- Anu Abraham, MDInterventional Cardiology Physician1720242464
- Erica AperNurse Practitioner1609600469
- Scott Brewster, MDInterventional Cardiology Physician1447785092
- Damian Domanski, M.D.Cardiovascular Disease Physician1508012030
- Dechie Doneen, PA-CPhysician Assistant1174212807
Verify John D. Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersUtah Medical Licensing Board
Search for license 4849787-1205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
718 Medicare Part D claims for 268 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Eliquis167 claims
- Flecainide Acetate137 claims
- Metoprolol Succinate107 claims
- Amiodarone Hcl52 claims
- Xarelto30 claims
- Sotalol21 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $81,722.72
93 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 3,167 providers of this specialty with any payment received $10,651.37 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
- Mountainstar Cardiology St Marks LLCSalt Lake City, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John D. Day among 33 clinical cardiac electrophysiology physician records in Utah
John D. Day, MD is one of 33 clinical cardiac electrophysiology physician records with a practice address in Utah. 85% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 64% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1995 · median 2004 among the 26 with a school on file
- Record last updated2020 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in Utah
There are 33 clinical cardiac electrophysiology physician records in Utah.
All 33 in Utah → Every provider in Salt Lake City → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Nischala Nannapaneni, M.D.Salt Lake City, UT 841241992967335
- Michael Crawford, MDSalt Lake City, UT 841321629422159
- Helge Lehmann, M.D.Salt Lake City, UT 841321871955328
- Qussay Marashly, MDSalt Lake City, UT 841321326525130
- Ravi Ranjan, MDSalt Lake City, UT 841321467505206
- Travis Wall, MDSalt Lake City, UT 841321518048305
- Roger Freedman, MDSalt Lake City, UT 841131790866580
- Khurram Butt, M.D.Salt Lake City, UT 841121609229160
Common questions
What is John D. Day, MD's NPI number?
John D. Day, MD's National Provider Identifier (NPI) is 1811965122, issued on Mar 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John D. Day, MD located?
The NPPES record lists a practice address at 1160 E 3900 S Ste 2000, Salt Lake City, UT, 84124. Phone: (801) 266-3418. Providers update this record themselves, so call before visiting.
How can I verify John D. Day, MD's license?
NPPES lists Utah license number 4849787-1205, as entered by the provider. Search the Utah Medical Licensing Board at https://secure.utah.gov/llv/search/index.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John D. Day, MD prescribe under Medicare Part D?
In 2024, John D. Day, MD had 718 Medicare Part D claims for 268 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
What is John D. Day, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.