Caroline Defrang, M.D.
Internal Medicine Physician · Boise, ID
Caroline Defrang, M.D. is an internal medicine physician with a practice address in Boise, Idaho, and NPI 1699724690, issued on May 8, 2006. Check the license (Idaho M7256, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Caroline Defrang
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- M7256 ID
Self-reported in NPPES; status is on the state search - Practice location
- 701 E Parkcenter Blvd, Boise, ID 83706
- Phone
- (208) 381-6400
- Enumerated
- May 8, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (208) 381-6450
- Medicare enrollment
- Enrolled (PECOS I20100820000358); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 453 in Idaho → Look up another NPI →
Also registered at 701 E Parkcenter Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ricky Aguayo-OrtegaFamily Medicine Physician1780324483
- Justin ArmstrongNurse Practitioner1023767910
- Jacqueline Barajas, PA-CPhysician Assistant1821697590
- Jessica Bartlett, NP-CFamily Nurse Practitioner1346903929
- Helene Beauclaire, LCPCProfessional Counselor1366517401
- Susan Blough, M.D.Internal Medicine Physician1336197870
Verify Caroline Defrang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M7256Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
377 Medicare Part D claims for 138 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 38 claims were for opioids.
Most prescribed
- Oxycodone Hcl19 claims
- Ondansetron Odt17 claims
- Ciprofloxacin Hcl16 claims
- Pantoprazole Sodium16 claims
- Amoxicillin-Clavulanate Potass13 claims
- Atorvastatin Calcium13 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
- St Lukes Clinic-Treasure Valley LLCBoise, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caroline Defrang among 453 internal medicine physician records in Idaho
Caroline Defrang, M.D. is one of 453 internal medicine physician records with a practice address in Idaho. 73% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 63% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1993 · median 2011 among the 254 with a school on file
- Record last updated2026 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
217 internal medicine physician records list a practice address in Boise
They are 217 of the 9,467 NPPES records with a practice address in Boise, and 453 internal medicine physician records in Idaho.
All 453 in Idaho → Every provider in Boise → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Peggie Bensch, MDBoise, ID 837061164468187
- Susan Blough, M.D.Boise, ID 837061336197870
- Rory Carrera, M.D.Boise, ID 837061710279922
- Jennifer Hofstra, MDBoise, ID 837061003079120
- Alfred Lounsbury, MDBoise, ID 837061699731760
- Carolyn McFarlane, MDBoise, ID 837061679802987
- Sara Nehring, DOBoise, ID 837061609037993
- Timothy Nelson, MDBoise, ID 837061811021884
Common questions
What is Caroline Defrang, M.D.'s NPI number?
Caroline Defrang, M.D.'s National Provider Identifier (NPI) is 1699724690, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Defrang, M.D. located?
The NPPES record lists a practice address at 701 E Parkcenter Blvd, Boise, ID, 83706. Phone: (208) 381-6400. Providers update this record themselves, so call before visiting.
How can I verify Caroline Defrang, M.D.'s license?
NPPES lists Idaho license number M7256, 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 Caroline Defrang, M.D. prescribe under Medicare Part D?
In 2024, Caroline Defrang, M.D. had 377 Medicare Part D claims for 138 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.