NPI age
20 years
Enumerated 2006-04-13
● Active
Type 1 · Individual
Mark D Spencer, MD
Spencer is 1 of 2 family medicine providers in Wendell and 1 of 1691 in Idaho.
Primary specialty
Family Medicine
Licensed in
ID
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-06-11
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1691 active family medicine providers in Idaho.
NPI age
20 years
↑ 3 yr above median (17 yr)
State licenses
1 state
14% of peers hold multiple states
Subspecialties
0
31% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-04Enumerated in NPPES
2006
2026
Where they practice
Practice location
410 N Idaho St
Wendell, ID 833555038
Mailing address
Po Box 447
Gooding, ID 83330
Additional practice locations
1 secondary location on file with NPPES.
Location 2
410 N Idaho St
Wendell, ID 833555038
Specialties
-
Family Medicine PrimaryFamily Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of...
Practice context
Part of a multi-provider practice. 6 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.