NPI age
19 years
Enumerated 2007-03-02
● Active
Type 1 · Individual
DR. William Guy Weppner, M.D.
Weppner is 1 of 225 internal medicine providers in Boise and 1 of 504 in Idaho.
Primary specialty
Internal Medicine
Plus 3 subspecialties
Licensed in
ID, WA, MT
3 states
Status
Active
No deactivations on record
Last NPPES update
2022-05-05
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 504 active internal medicine providers in Idaho.
NPI age
19 years
↑ 3 yr above median (16 yr)
State licenses
3 states
Top 76% — 23% of peers are multi-state
Subspecialties
0
44% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-03Enumerated in NPPES
2007
2026
Where they practice
Practice location
500 W Fort St, Mso 111
Boise, ID 837024501
Mailing address
1505 N 18th St
Boise, ID 837022528
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,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (WA) | 4370WE | BLUE SHIELD VM |
Multi-state credentialing: Licensed in 3 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 574 other active providers share this practice address in NPPES.
Recently enumerated nearby: 4 new internal medicine providers have been added in Boise in the last 180 days.
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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.