Karl N. Watts, MD
Family Medicine Physician · Boise, ID
Karl N. Watts, MD is a family medicine physician with a practice address in Boise, Idaho, and NPI 1578591053, issued on Jun 30, 2006. Check the license (Idaho M5548, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Karl N. Watts
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- M5548 ID
Self-reported in NPPES; status is on the state search - Practice location
- 10255 Overland RD, Boise, ID 83709
- Phone
- (208) 302-5600
- Enumerated
- Jun 30, 2006
- Record last updated
- Nov 15, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (208) 302-5655
- Medicaid ID
- 004007200 ID
- Medicare enrollment
- Enrolled (PECOS I20090902000737); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,316 in Idaho → Look up another NPI →
Also registered at 10255 Overland RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julie Clark, PA-CPhysician Assistant1649214131
Verify Karl N. Watts in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M5548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average family medicine physician in 2024
5,624 Medicare Part D claims for 583 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 180 claims were for opioids.
Most prescribed
- Lisinopril333 claims
- Atorvastatin Calcium242 claims
- Omeprazole212 claims
- Amlodipine Besylate210 claims
- Simvastatin201 claims
- Levothyroxine Sodium190 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
- Saint Alphonsus Regional Medical Center IncBoise, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl N. Watts among 1,316 family medicine physician records in Idaho
Karl N. Watts, MD is one of 1,316 family medicine physician records with a practice address in Idaho. 78% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 57% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1988 · median 2009 among the 793 with a school on file
- Record last updated2016 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
315 family medicine physician records list a practice address in Boise
They are 315 of the 9,467 NPPES records with a practice address in Boise, and 1,316 family medicine physician records in Idaho.
All 1,316 in Idaho → Every provider in Boise → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Anne Burgess, M.DBoise, ID 837091194767178
- Joshua Durham, D.O.Boise, ID 837091013194208
- Tara Erbele, M.D.Boise, ID 837091427081744
- Gregory Lewer, MDBoise, ID 837091669414975
- Debra Mabbutt, M.S.; PA-CBoise, ID 837091760581490
- Matthew May, M.D.Boise, ID 837091255387908
- Dale Mock, MDBoise, ID 837091215948351
- John Mohr, M.D.Boise, ID 837091124073077
Common questions
What is Karl N. Watts, MD's NPI number?
Karl N. Watts, MD's National Provider Identifier (NPI) is 1578591053, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karl N. Watts, MD located?
The NPPES record lists a practice address at 10255 Overland RD, Boise, ID, 83709. Phone: (208) 302-5600. Providers update this record themselves, so call before visiting.
How can I verify Karl N. Watts, MD's license?
NPPES lists Idaho license number M5548, 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 Karl N. Watts, MD prescribe under Medicare Part D?
In 2024, Karl N. Watts, MD had 5,624 Medicare Part D claims for 583 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.