Dr. John L Corso , MD
Internal Medicine β’ Bend, OR
18 Nw Oregon Ave
Bend, OR 977012729
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on January 23, 2006; this date does not establish years in practice.
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Published CMS data list 1,213 Medicare Part D prescriptions, including refills, in 2015.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2015. Published rows only; this is not a quality measure.
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Published Part D records, 2015:
- Atorvastatin Calcium β 108 prescription fills, including refills.
- Losartan Potassium β 105 prescription fills, including refills.
- Fenofibrate (Fenofibrate Nanocrystallized) β 70 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2015. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 48 records in the table Β· Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 1,660 in 2013 to 1,213 in 2015.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2013β2015.
Practice Location & Contact Primary Location
18 Nw Oregon Ave
Bend, OR 977012729
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
1,706 standardized 30-day fills in 2015
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$76,634 in 2015
The total cost of these prescriptions in 2015, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2015.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Can order Medicare-covered services
CMS lists Dr. Corso as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Bend and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Corso are from 2015.
97 active clinicians are listed under Internal Medicine with a practice address in Bend, OR (2,118 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Bend
32% of these 97 clinicians have the CMS telehealth indicator.
72.2% of these 97 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 27% from 1,660 in 2013 to 1,213 in 2015.
- 2013: 1,660
- 2014: 1,896
- 2015: 1,213
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30-day fills
30-day fills decreased 13% from 1,955 in 2013 to 1,706 in 2015.
- 2013: 1,955
- 2014: 2,375
- 2015: 1,706
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Part D drug cost
Part D drug cost decreased 28% from $106,469 in 2013 to $76,634 in 2015.
- 2013: $106,469
- 2014: $119,860
- 2015: $76,634
Sources: CMS Medicare Part D Prescribers (2015), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2015.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 108 | 4,560 | $1,814.86 | 18 |
| Losartan Potassium | Losartan Potassium | 105 | 4,023 | $1,427.75 | 17 |
| Fenofibrate | Fenofibrate Nanocrystallized | 70 | 2,940 | $9,108.33 | 11 |
| Bystolic | Nebivolol Hcl | 50 | 1,920 | $6,285.25 | 14 |
| Metformin Hcl | Metformin Hcl | 45 | 1,860 | $251.51 | β |
| Allopurinol | Allopurinol | 43 | 2,588 | $880.67 | β |
| Levothyroxine Sodium | Levothyroxine Sodium | 39 | 2,550 | $1,178.94 | 12 |
| Escitalopram Oxalate | Escitalopram Oxalate | 28 | 1,080 | $859.88 | β |
| Furosemide | Furosemide | 28 | 870 | $163.36 | β |
| Paroxetine Hcl | Paroxetine Hcl | 28 | 1,080 | $304.23 | β |
| Potassium Chloride | Potassium Chloride | 28 | 900 | $892.44 | β |
| Tamsulosin Hcl | Tamsulosin Hcl | 28 | 1,080 | $821.11 | β |
| Raloxifene Hcl | Raloxifene Hcl | 27 | 1,050 | $4,348.58 | β |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 26 | 1,380 | $674.27 | β |
| Montelukast Sodium | Montelukast Sodium | 26 | 1,020 | $349.71 | β |
| Simvastatin | Simvastatin | 25 | 1,410 | $212.31 | β |
| Clonazepam | Clonazepam | 25 | 1,082 | $113.11 | β |
| Nexium | Esomeprazole Magnesium | 24 | 720 | $5,986.90 | β |
| Fenofibrate | Fenofibrate | 23 | 1,170 | $1,629.23 | β |
| Omeprazole | Omeprazole | 23 | 1,050 | $447.70 | β |
| Alprazolam | Alprazolam | 21 | 604 | $98.57 | β |
| Niacin Er | Niacin | 21 | 690 | $3,049.23 | β |
| Amlodipine Besylate | Amlodipine Besylate | 20 | 1,320 | $127.88 | β |
| Metformin Hcl Er | Metformin Hcl | 19 | 810 | $241.71 | β |
| Pravastatin Sodium | Pravastatin Sodium | 18 | 1,140 | $935.03 | β |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2015; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Nurse Practitioner
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Surgical
Career & Practice History
NPI enumerated January 23, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Bend
- Dr. Arthur Parker, MD
- Dr. Bryan Harris, MD
- Matthew Ingrassia
- Dr. Meagan Herda, MD
- Dr. Joshua Little, DO
- Dr. Erin Donovan, DO
Mailing Address
18 Nw Oregon Ave
Bend, OR 977012735
Phone: 5413897741