NPI age
19 years
Enumerated 2006-10-27
● Active
Type 1 · Individual
DR. Cay E Berg, M.D.
Berg is 1 of 1 preventive medicine providers in Ammon and 1 of 5 in Idaho.
Primary specialty
Preventive Medicine
Licensed in
ID
1 state
Status
Active
No deactivations on record
Last NPPES update
2007-07-08
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 5 active preventive medicine providers in Idaho.
NPI age
19 years
≈ at median (18 yr)
State licenses
1 state
20% of peers hold multiple states
Subspecialties
0
60% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-10Enumerated in NPPES
2006
2026
Where they practice
Practice location
4701 S Wackerli Ave
Ammon, ID 834068154
Mailing address
4701 S Wackerli Ave
Ammon, ID 834068154
Specialties
-
Preventive Medicine PrimaryA preventive medicine physician who specializes in preventive medicine/occupational-environmental medicine, which is focused on protecting the population from occupational and environmental conditions.
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
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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.