NPI age
11 years
Enumerated 2015-04-01
● Active
Type 1 · Individual
DR. Michael Dee Holyoak, DO
Holyoak is 1 of 5 internal medicine providers in Meridian and 1 of 33 in Idaho.
Primary specialty
Internal Medicine
Licensed in
ID
1 state
Status
Active
No deactivations on record
Last NPPES update
2020-07-08
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 33 active internal medicine providers in Idaho.
NPI age
11 years
↓ 7 yr below median (18 yr)
State licenses
1 state
12% of peers hold multiple states
Subspecialties
0
48% of peers hold subspecialties
NPI lifetime · 2015 → 2026
2015-04Enumerated in NPPES
2015
2026
Where they practice
Practice location
520 S Eagle Rd Ste 1234
Meridian, ID 836426355
Mailing address
520 S Eagle Rd Ste 1234
Meridian, ID 836426355
Specialties
-
Internal Medicine PrimaryAn internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary...
Practice context
Part of a multi-provider practice. 4 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.
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