David L. Day, P.A.
General Practice Physician · Rexburg, ID
David L. Day, P.A. is a general practice physician with a practice address in Rexburg, Idaho, and NPI 1649321134, issued on Jan 13, 2007. Check the license (Idaho PA394, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- David L. Day
- Credential
- P.A.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- PA394 ID
Self-reported in NPPES; status is on the state search - Practice location
- 32 W 1St S, Rexburg, ID 83440
- Phone
- (208) 356-7585
- Enumerated
- Jan 13, 2007
- Record last updated
- Sep 7, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (208) 356-7566
- Medicare enrollment
- Enrolled (PECOS I20041112000525); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 30 in Idaho → Look up another NPI →
Also registered at 32 W 1St S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dirk Andreasen, MPTPhysical Therapist1700953288
- Laura Barcelo, PA-CPhysician Assistant1841875895
- Jeffrey Hopkin, M.D.Family Medicine Physician1780797712
- Richard Jones, MDFamily Medicine Physician1346341021
- Greg Klingler, PA-CMedical Physician Assistant1972770881
- Sheri Smith, PA-CPhysician Assistant1952035610
Verify David L. Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license PA394Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average general practice physician in 2024
2,620 Medicare Part D claims for 188 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. 26 claims were for opioids.
Most prescribed
- Levothyroxine Sodium133 claims
- Pantoprazole Sodium102 claims
- Amlodipine Besylate79 claims
- Zolpidem Tartrate76 claims
- Atorvastatin Calcium73 claims
- Olmesartan Medoxomil68 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: $355.28
19 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,259 providers of this specialty with any payment received $1,273.40 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
- Teton Medical Group PLLCRexburg, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David L. Day among 30 general practice physician records in Idaho
David L. Day, P.A. is one of 30 general practice physician records with a practice address in Idaho. 50% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 37% newer
- In a Medicare fileYes · 50% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Record last updated2011 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in Idaho
There are 30 general practice physician records in Idaho.
All 30 in Idaho → Every provider in Rexburg → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Charles Zollinger, M.D.Rexburg, ID 834401629182282
- Stephen Cheyne, M.D.Saint Anthony, ID 834451346391513
- Jacob Moss, M.D., J.D.Saint Anthony, ID 834451205179751
- Janene Witherite, PA-CVictor, ID 834551508467051
- Lanie BensonDriggs, ID 834221215344353
- Emily Jensen, DOIdaho Falls, ID 834041245989318
- William Eder, M.D.Idaho Falls, ID 834011275696734
- Chuck Colas, DOLewiston, ID 835011831204288
Common questions
What is David L. Day, P.A.'s NPI number?
David L. Day, P.A.'s National Provider Identifier (NPI) is 1649321134, issued on Jan 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David L. Day, P.A. located?
The NPPES record lists a practice address at 32 W 1St S, Rexburg, ID, 83440. Phone: (208) 356-7585. Providers update this record themselves, so call before visiting.
How can I verify David L. Day, P.A.'s license?
NPPES lists Idaho license number PA394, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David L. Day, P.A. prescribe under Medicare Part D?
In 2024, David L. Day, P.A. had 2,620 Medicare Part D claims for 188 beneficiaries; the average among general practice physician prescribers was 3,030. 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.