Dr. Carolyn K. Day, MD
- Medicare services, 2024
- 1,066
- Medicare patients, 2024
- 261
- Part D claims, 2024
- 5,846
- Hospital affiliations
- 1
- Industry payments
- $130
- Practice address
- 1501 NE Medical Center Dr, Bend, OR 97701
- Practice phone
- Call (541) 382-2811
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Summit Health
Bend, Oregon
Find Dr. Day's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Carolyn K. Day is an internist in Bend, Oregon
Dr. Day practices at Summit Health in Bend, Oregon.
Dr. Day's NPI, 1619921350, was assigned on May 19, 2006. Dr. Day graduated from University of Rochester School of Medicine and Dentistry in 1998. Dr. Day holds Oregon license MD167095.
- NPI
- 1619921350NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557529229
- NPI enumeration date
- May 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (541) 382-2811
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Carolyn K. Day practices at Summit Health in Bend, Oregon
Dr. Day's primary practice is Summit Health, at 1501 NE Medical Center Dr, Bend, OR 97701 in Deschutes County. The practice phone is (541) 382-2811.
- Summit Health1501 NE Medical Center Dr, Bend, OR 97701 · Deschutes CountyPhone(541) 382-2811
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Carolyn K. Day is affiliated with 5 sites of care and 1 medical group
Dr. Day's primary practice is Summit Health in Bend, Oregon. Dr. Day is also affiliated with St. Charles Bend. The medical group on file is Summit Health. Dmand AI also links Dr. Day to 2 more home health agencies and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Carolyn K. Day's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Day practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Summit Health | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Carolyn K. Day is one of 1,680 internists in Oregon
Internal medicine is Dr. Day's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Day is licensed in Oregon.
Specialties and state licenses
- Internal medicine, OregonPrimary
Internists near Dr. Day
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Carolyn K. Day billed Medicare for 1,066 services in 2024
CMS data shows 1,066 Medicare services from Dr. Day across 19 procedure codes in 2024, for 261 Medicare patients. Medicare paid $80,568 for them. Every service was in an office.
Dr. Day's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4842024: 482No change
- Other services
- 2023: 2312024: 37663%
- Tests and treatments
- 2023: 1312024: 9726%
- Lab and pathology
- 2023: 222024: 66200%
- Surgery
- 2023: 02024: 45
Dr. Day compared with the Oregon median for internists, 2024
- Dr. Day
- Oregon median
- Medicare services
- 1,066vs 3003.6 times
- Medicare patients
- 261vs 13298% above
- Part D claims
- 5,091vs 22222.9 times
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Dr. Day's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Day?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Day and other internists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Carolyn K. Day treated 261 Medicare patients in 2024, average age 72
CMS counts 261 Medicare patients who saw Dr. Day in 2024. The largest group is 65 to 74, with 161 patients. 60% of them have high cholesterol, and 50% have high blood pressure. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Day's median patient age at 62, with 68% women.
Dr. Day's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Day's Medicare patients by sex, 2024
- Women18772%
- Men7428%
Chronic conditions among Dr. Day's Medicare patients, 2024
- High cholesterol60%
- High blood pressure50%
- Arthritis45%
- Osteoporosis28%
- Mood disorders22%
- Ischemic heart disease21%
- Depression18%
- Anxiety15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Day's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women68%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Carolyn K. Day wrote 5,846 Medicare Part D claims in 2024
In 2024, Dr. Day wrote 5,846 Medicare Part D claims for 451 patients. 89% of them were for generic drugs. CMS names the drug for 5,091 of them, across 112 drugs with 11 or more claims each, at $419,825 in total drug cost. In 2023, CMS named 4,782 claims across 113 drugs.
Dr. Day's Part D claims by kind of drug, 2024
- Generic5,189 claims89%
- Brand-name633 claims11%
- Other24 claims0%
Dr. Day's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Day's Part D claims, 2024
- Opioids5%289 of 5,846 claims
- Antibiotics1%68 of 5,846 claims
- Antipsychotics, patients 65 and over1%45 of 5,846 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,7822024: 5,0916%
Drugs named by CMS: 112 in 2024, 113 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Carolyn K. Day offers telehealth to Medicare patients
Dr. Day accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Day as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Carolyn K. Day received $130 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Day from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Dexcom, Inc. paid the most, $130.
Companies that paid Dr. Day the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Carolyn K. Day graduated from University of Rochester School of Medicine and Dentistry
Dr. Day graduated from University of Rochester School of Medicine and Dentistry in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Carolyn K. Day's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Carolyn K. Day
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Carolyn K. Day's NPI number?
Dr. Carolyn K. Day's NPI number is 1619921350. It was assigned on May 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Carolyn K. Day?
Dr. Carolyn K. Day is an internist in Bend, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Carolyn K. Day practice?
Dr. Day practices at 1501 NE Medical Center Dr, Bend, OR 97701. Dr. Day's primary practice is Summit Health in Bend, Oregon. Dmand AI also links Dr. Day to 2 home health agencies and 1 group practice or clinic.
What is Dr. Carolyn K. Day's office phone number?
The practice phone on file for Dr. Day is (541) 382-2811.
What is Dr. Carolyn K. Day's medical license number?
Dr. Day holds Oregon license MD167095.
Which hospitals is Dr. Carolyn K. Day affiliated with?
Dr. Day is affiliated with St. Charles Bend.
What medical group is Dr. Carolyn K. Day part of?
Dr. Day is linked to Summit Health.
Does Dr. Carolyn K. Day accept Medicare?
Yes. CMS data shows Dr. Day billed Medicare for 1,066 services in 2024, and Dr. Day accepts Medicare assignment.
Does Dr. Carolyn K. Day offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Day as offering telehealth services.
How many Medicare patients does Dr. Carolyn K. Day see?
CMS counts 261 Medicare patients who saw Dr. Day in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Dr. Carolyn K. Day bill to Medicare?
In 2024, Dr. Day's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and office visit, established patient (99213).
Where did Dr. Carolyn K. Day go to medical school?
Dr. Day graduated from University of Rochester School of Medicine and Dentistry in 1998.
What drugs does Dr. Carolyn K. Day prescribe most?
In 2024 Medicare Part D data, Dr. Day's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Rosuvastatin Calcium.
Has Dr. Carolyn K. Day received payments from drug or device companies?
CMS Open Payments shows $130 in general payments to Dr. Day from 1 company from 2025 to 2025. The largest total came from Dexcom, Inc.
How long has Dr. Carolyn K. Day been practicing?
Dr. Day graduated from medical school in 1998, 28 years ago.
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