Active NPI
Mark D Spencer, MD
- Family Medicine Physician
- Wendell, ID
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- M4484
- Practice address
- 410 N Idaho St
Wendell, ID 83355-5038 - Phone
- (208) 990-3226
- Fax
- (888) 440-7959
- NPI assigned
- Apr 13, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | M4484 | ID | Primary |
Addresses
Primary practice location
410 N Idaho St
Wendell, ID 83355-5038
Mailing address
PO Box 447
Gooding, ID 83330
Phone (208) 934-5900
Other practice location 1
410 N Idaho St
Wendell, ID 83355-5038
Phone (208) 536-3995
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in ID
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20120322000523 | ID | Practitioner - Family Practice | 5799945150 | Reassigns benefits to 4 organizations |
Care Compare profile
Medicare Care Compare- Specialty
- Family Practice
- Education
- University of Washington School of Medicine, 1979
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
537 E Forest Ridge Dr
Meridian, ID 83642-4657
PO Box
Suite 447
Gooding, ID 83330
Hospital & facility affiliations
- Idaho Home Health & Hospice
- Visions Home Health & Visions Home Care LLC
- North Canyon Medical Center
- St Lukes Magic Valley Medical Center
- St Luke'S Jerome
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| M4484 | ID | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Associates in Family Practice Inc | Family Medicine | Current | Accepting new patients |
| Associates in Family Practice Inc | Family Medicine | Current | Accepting new patients |
| Precision Medical Care LLC | Family Medicine | Current | Accepting new patients |
| Associates in Family Practice Inc | Family Medicine | Current | Accepting new patients |
| Wendell Family Medicine, LLC | Family Medicine | Past | Accepting new patients |
Locations
425 Idaho St
Gooding, ID 83330
Phone (208) 934-5900
640 Frogs Lndg
Hagerman, ID 83332
Phone (208) 731-6241
3155 Channing Way
Idaho Falls, ID 83404
Phone (801) 699-6344
2965 E Tarpon Dr
Ste 110
Meridian, ID 83642
Phone (208) 617-6455
410 N Idaho St
Wendell, ID 83355
Phone (208) 536-3995
1633 W Innovation Way
Fl 5
Lehi, UT 84043
Phone (801) 699-6344
Ownership & related parties
All facility ownership & control disclosures 2
Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.
| Facility | Type | Role | Since |
|---|---|---|---|
| North Canyon Medical Center | Hospital | Corporate Officer | Mar 25, 2014 |
| North Canyon Family Medicine | Rural health clinic | Corporate Officer | Mar 25, 2014 |
Owned or controlled facilities with NPI records 2
Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.
-
- Critical Access Hospital
- Gooding, ID
- NPI 1609046671
Corporate Officer
-
- Rural Health Clinic/Center
- Gooding, ID
- NPI 1518377019
Corporate Officer
Organizations & group practices 6
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Family Medicine Physician
- Gooding, ID
- NPI 1326002650
Family Medicine, ID
-
- Family Medicine Physician
- Idaho Falls, ID
- NPI 1780266288
Family Medicine, ID
-
- Family Medicine Physician
- Gooding, ID
- NPI 1023030848
Family Medicine
-
- Family Medicine Physician
- Gooding, ID
- NPI 1881659357
Family Medicine
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Twin Falls, ID
- NPI 1356669675
-
- Critical Access Hospital
- Jerome, ID
- NPI 1366874877
Hospital
-
- General Acute Care Hospital
- Twin Falls, ID
- NPI 1932154705
Hospital
-
- Home Health Agency
- Twin Falls, ID
- NPI 1235137761
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1144886400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1749600000000",
"number": "1497719728",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 447",
"city": "GOODING",
"state": "ID",
"postal_code": "83330",
"telephone_number": "208-934-5900",
"fax_number": "208-934-5719"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "410 N IDAHO ST",
"city": "WENDELL",
"state": "ID",
"postal_code": "833555038",
"telephone_number": "208-990-3226",
"fax_number": "888-440-7959"
}
],
"practiceLocations": [
{
"address_1": "410 N Idaho St",
"address_purpose": "LOCATION",
"city": "Wendell",
"state": "ID",
"postal_code": "833555038",
"country_code": "US",
"telephone_number": "208-536-3995",
"fax_number": "888-440-7959",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "SPENCER",
"first_name": "MARK",
"middle_name": "D",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-04-13",
"last_updated": "2025-06-11",
"certification_date": "2025-06-11",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "ID",
"license": "M4484",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Wendell, ID
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.