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MARK D SPENCER MD
NPI 1497719728
Family Medicine in Wendell, ID

Active since April 13, 2006PECOS Enrolled
410 N IDAHO ST, WENDELL, ID 83355(208) 990-3226(888) 440-7959 Get Directions Write a Review

NPPES record last updated: June 11, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 11, 2025, May 7, 2025 (2 updates tracked since 2025).

About Mark D Spencer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK D SPENCER MD (NPI 1497719728) is an individual family medicine provider in Wendell, Idaho, licensed in Idaho (M4484) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with St Lukes Magic Valley Medical Center, and maintains a secondary practice location in Wendell.

NPPES Registry Identity

NPI1497719728
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameMARK D SPENCERCredential: MD
Location Address410 N IDAHO STWendell, ID 83355-5038
Mailing AddressPo Box 447Gooding, ID 83330 · (208) 934-5900 · Fax (208) 934-5719
Phone(208) 990-3226
Fax(888) 440-7959
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 1979
Enumeration DateApril 13, 2006
Last NPPES UpdateJune 11, 20252 updates tracked since enumeration
NPPES CertifiedJune 11, 2025
✔ NPI 1497719728 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in ID · M4484
Definition
Family 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 family medicine is not limited by age, sex, organ system, or disease entity.
410 N IDAHO ST, Wendell, ID 83355
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Secondary Practice Location 1

Location 1410 N Idaho StWendell, ID 83355-5038 · Phone (208) 536-3995 · Fax (888) 440-7959

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare, PacificSource Health Plans, Providence Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark D Spencer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5799945150
PECOS Enrollment IDI20120322000523
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Mark Spencer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Associates In Family Practice Inc
11 mi
Family Medicine
425 IDAHO ST
Gooding, ID 83330
  • Reassigned Medicare billing, Idaho enrollment
  • Also billed through NPI 1326002650 (Idaho)
  • 12 clinicians in this Medicare group
NPI 1023030848 (208) 934-5900
Provider Profile
39 mi
Family Medicine
401 W CAMAS AVE
Fairfield, ID 83327
  • Reassigned Medicare billing, Idaho enrollment
  • 2 clinicians in this Medicare group
NPI 1821484957 (208) 764-2611
Precision Medical Care LLC
145 mi
Family Medicine
3820 CRESTWOOD LN
Idaho Falls, ID 83404
  • Reassigned Medicare billing, Idaho enrollment
  • 17 clinicians in this Medicare group
NPI 1780266288 (208) 918-2525

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
49 services40 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
34 services21 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
31 services31 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
13 services13 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Lukes Magic Valley Medical Center

Acute Care Hospitals · Twin Falls, ID
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number130002
Location801 Pole Line Road WestTwin Falls, ID 83301 · Twin Falls County
Emergency services Birthing friendly

North Canyon Medical Center

Critical Access Hospitals · Gooding, ID
OwnershipVoluntary non-profit - Private
CMS Certification Number131302
Location267 North Canyon DrGooding, ID 83330 · Gooding County

St Luke's Jerome

Critical Access Hospitals · Jerome, ID
OwnershipVoluntary non-profit - Private
CMS Certification Number131310
Location709 North Lincoln AvenueJerome, ID 83338 · Jerome County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 83355 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$81.13 typical visit price
range $52.44 – $160.17
Typical copayment $20.28 (range $13.11 – $40.04)
Most-billed visit code 99203
Established Patient
$93.26 typical visit price
range $16.68 – $130.93
Typical copayment $23.31 (range $4.17 – $32.73)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 22

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers26 claims53 services$6.46 avg. paid by Medicare
Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351
DME-Orthotic Devices · category DF008N
1 supplier12 claims360 services$1.31 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
3 suppliers21 claims21 services$39.04 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
3 suppliers15 claims15 services$108.63 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
3 suppliers18 claims46 services$40.75 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
3 suppliers11 claims41 services$25.10 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

WENDELL FAMILY MEDICINE, LLC
Family Medicine
410 N IDAHO ST
WENDELL, ID 83355
Gooding County (208) 990-3226
JACK C KULM DMD PA
Dentist
410 N IDAHO ST
WENDELL, ID 83355
Gooding County (208) 536-5441
SAMANTHA A MARSHALL MD
Internal Medicine
410 N IDAHO ST
WENDELL, ID 83355
Gooding County (208) 990-3226
TODAYS DENTAL CARE WENDELL LLC
Dentist (General Practice)
410 N IDAHO ST
WENDELL, ID 83355
Gooding County (208) 536-5441
DR. JEREMIAH MCKELL FUNK DDS
Dentist
410 N IDAHO ST
WENDELL, ID 83355
Gooding County (208) 536-5441
JACK C. KULM DMD PA
Dentist
410 N IDAHO ST
WENDELL, ID 83355
Gooding County (208) 536-5441

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Spencer's NPI number?

The NPI number for Mark Spencer is 1497719728. It was assigned to this individual provider in the NPPES registry on April 13, 2006.

Where is Mark Spencer located?

Mark Spencer practices at 410 N Idaho St, Wendell, ID 83355. The listed phone number is (208) 990-3226.

What is Mark Spencer's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Mark Spencer enrolled in Medicare?

Yes. Mark Spencer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mark Spencer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Spencer reassigns Medicare benefits to 3 organizations: Associates In Family Practice Inc (Gooding, ID), (Fairfield, ID) and Precision Medical Care LLC (Idaho Falls, ID). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Spencer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Spencer accept?

Health plans from Molina Healthcare, PacificSource Health Plans, Providence Health Plan and Select Health list Mark Spencer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Spencer affiliated with any hospitals?

According to CMS data, Mark Spencer is affiliated with St Lukes Magic Valley Medical Center, North Canyon Medical Center and St Luke's Jerome.

When was this NPI record last updated?

The NPPES record for Mark Spencer was last updated on June 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.