NPPES file of Aug 9, 2026

Mark Scott Williams, D.O.

Sports Medicine (Family Medicine) Physician · Nampa, ID

Mark Scott Williams, D.O. is a sports medicine (family medicine) physician with a practice address in Nampa, Idaho, and NPI 1114961166, issued on Jun 16, 2006. Check the license (Idaho O-157, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114961166
Name
Mark Scott Williams
Credential
D.O.
Primary taxonomy
Sports Medicine (Family Medicine) Physician 207QS0010X
License numbers
O-157 ID
0-157 ID
Self-reported in NPPES; status is on the state search
Practice location
215 E Hawaii Ave, Nampa, ID 83686
Phone
(208) 463-3291
Enumerated
Jun 16, 2006
Record last updated
Sep 30, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(208) 463-3049
Medicare enrollment
Enrolled (PECOS I20100820000660); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1993
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest sports medicine (family medicine) physician records → All 21 in Idaho → Look up another NPI →

Also registered at 215 E Hawaii Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brian Affleck, MDOtolaryngology Physician1386633824
  2. Richard Aguilar, M.D.Pediatrics Physician1932198967
  3. Richard Ballantyne, DOSurgery Physician1174745582
  4. Sol Bockelie, MDFamily Medicine Physician1275279192
  5. Michael Chenore, MDFamily Medicine Physician1225028632
  6. Michael Dee, M.D.Internal Medicine Physician1053302182

Verify Mark Scott Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIdaho Board of Medicine
    Search for license O-157    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Idaho license search

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71% fewer Medicare Part D claims than the average sports medicine (family medicine) physician in 2024

250 Medicare Part D claims for 110 beneficiaries, against an average of 855 among the 2,237 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 74 claims were for opioids.

  1. Mark Williams250
  2. Specialty average855

Most prescribed

  1. Tramadol Hcl61 claims
  2. Prednisone36 claims
  3. Methylprednisolone31 claims
  4. Diclofenac Sodium30 claims
  5. Meloxicam21 claims
  6. Gabapentin13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $35.30

2 payments; by number, the most common kind was food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 1,218 providers of this specialty with any payment received $781.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Williams$35.30
  2. Specialty average$781.49

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Direct Orthopedic Care LLCNampa, ID

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Scott Williams among 21 sports medicine (family medicine) physician records in Idaho

Mark Scott Williams, D.O. is one of 21 sports medicine (family medicine) physician records with a practice address in Idaho. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 62% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1993 · median 2011 among the 16 with a school on file
  • Record last updated2014 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QS0010X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Family Medicine) Physician providers in Idaho

There are 21 sports medicine (family medicine) physician records in Idaho.

All 21 in Idaho → Every provider in Nampa → Sports Medicine (Family Medicine) Physician nationwide →

The 8 sports medicine (family medicine) physician records with the nearest ZIP codes

  1. Tobias Gopon, MDBoise, ID 837021508152257
  2. Alejandro Homaechevarria, MDBoise, ID 837021518978337
  3. Julia Jensen, DOBoise, ID 837021003819509
  4. Dean Lapinel, M.D.Boise, ID 837021215137526
  5. Kurt Nilsson, MDBoise, ID 837021477581122
  6. Tin VuongBoise, ID 837021417223892
  7. Justin McCoy, DOBoise, ID 837041265792238
  8. Kaleb Redden, DOBoise, ID 837041366822892

Common questions

What is Mark Scott Williams, D.O.'s NPI number?

Mark Scott Williams, D.O.'s National Provider Identifier (NPI) is 1114961166, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Scott Williams, D.O. located?

The NPPES record lists a practice address at 215 E Hawaii Ave, Nampa, ID, 83686. Phone: (208) 463-3291. Providers update this record themselves, so call before visiting.

How can I verify Mark Scott Williams, D.O.'s license?

NPPES lists Idaho license number O-157, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Scott Williams, D.O. prescribe under Medicare Part D?

In 2024, Mark Scott Williams, D.O. had 250 Medicare Part D claims for 110 beneficiaries; the average among sports medicine (family medicine) physician prescribers was 855. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.