NPPES file of Aug 9, 2026

Carolyn K. Day, M.D.

Internal Medicine Physician · Bend, OR

Carolyn K. Day, M.D. is an internal medicine physician with a practice address in Bend, Oregon, and NPI 1619921350, issued on May 19, 2006. Check the license (Oregon MD167095, as entered in NPPES) on the Oregon Medical Board; 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
1619921350
Name
Carolyn K. Day
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD167095 OR
Self-reported in NPPES; status is on the state search
Practice location
815 SW Bond St, Bend, OR 97702
Phone
(541) 382-4900
Enumerated
May 19, 2006
Record last updated
Jan 2, 2025
Medicaid IDs
500671655 OR
8348989 WA
Medicare enrollment
Enrolled (PECOS I20140707001855); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 1998
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 815 SW Bond St

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

  1. Sarah Atkin, PA-CPhysician Assistant1427673318
  2. Thomas BrieskePhysician Assistant1144948803
  3. Kid Cabrera, FNPFamily Nurse Practitioner1588386676
  4. Renee Del Rio, PSY.D.Clinical Psychologist1811053283
  5. James Johnson III, PAPhysician Assistant1952429755
  6. Benjamin KingPhysician Assistant1639523210

Verify Carolyn K. Day in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD167095
    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 Oregon license search

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84% more Medicare Part D claims than the average internal medicine physician in 2024

5,846 Medicare Part D claims for 451 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 289 claims were for opioids.

  1. Carolyn Day5,846
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium319 claims
  2. Levothyroxine Sodium299 claims
  3. Rosuvastatin Calcium222 claims
  4. Losartan Potassium201 claims
  5. Amlodipine Besylate189 claims
  6. Trazodone Hcl153 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.

Bills Medicare through one group practice

  1. Bend Memorial Clinic PCBend, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

97 internal medicine physician records list a practice address in Bend

They are 97 of the 5,313 NPPES records with a practice address in Bend, and 2,116 internal medicine physician records in Oregon.

Other internal medicine physician records in Oregon

  1. Charmaine Clarisse Abalos, M.D.Medford, OR1700376050
  2. Soraya Abbassian, M.D.Portland, OR1225029184
  3. Mohamed Abdel Khalek, M.DRoseburg, OR1972687390
  4. Rand AbedalweliPortland, OR1265019996
  5. Robert Abernathy, M.D.Bend, OR1063433449
  6. Rebecca Abney, D.O.Portland, OR1881984748
  7. Mohamed Aboukhashan, MDMedford, OR1932350782
  8. Allison Abraham, D.O.Portland, OR1831488444
  9. Heidi Abreu Pacheco, M.DMount Angel, OR1669691721
  10. Hennie Abrio, MDRoseburg, OR1891925129

Common questions

What is Carolyn K. Day, M.D.'s NPI number?

Carolyn K. Day, M.D.'s National Provider Identifier (NPI) is 1619921350, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn K. Day, M.D. located?

The NPPES record lists a practice address at 815 SW Bond St, Bend, OR, 97702. Phone: (541) 382-4900. Providers update this record themselves, so call before visiting.

How can I verify Carolyn K. Day, M.D.'s license?

NPPES lists Oregon license number MD167095, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Carolyn K. Day, M.D. prescribe under Medicare Part D?

In 2024, Carolyn K. Day, M.D. had 5,846 Medicare Part D claims for 451 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.