NPI age
8 years
Enumerated 2018-03-25
● Active
Type 1 · Individual
DR. William Paul Diehl IV, D.O.
Diehl is 1 of 5 internal medicine providers in Bonners Ferry and 1 of 504 in Idaho.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
ID
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-01-06
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 504 active internal medicine providers in Idaho.
NPI age
8 years
↓ 8 yr below median (16 yr)
State licenses
1 state
23% of peers hold multiple states
Subspecialties
1
In the 44% of peers with subspecialties
NPI lifetime · 2018 → 2026
2018-03Enumerated in NPPES
2018
2026
Where they practice
Practice location
6640 Kaniksu St
Bonners Ferry, ID 838057532
Mailing address
6640 Kaniksu St
Bonners Ferry, ID 838057532
Additional practice locations
1 secondary location on file with NPPES.
Location 2
2003 Kootenai Health Way
Coeur D Alene, ID 838146051
Specialties
-
Internal Medicine PrimaryA 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,...
-
HospitalistHospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term...
Practice context
Part of a multi-provider practice. 21 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.