NPPES file of Aug 9, 2026

Michael Slack, DO

Family Medicine Physician · Caldwell, ID

Michael Slack, DO is a family medicine physician with a practice address in Caldwell, Idaho, and NPI 1679006076, issued on Apr 4, 2017. Check the license (Idaho O-1447, 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
1679006076
Name
Michael Slack
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
O-1447 ID
S3590 TX
Self-reported in NPPES; status is on the state search
Practice location
4815 Cleveland Blvd, Caldwell, ID 83605
Phone
(208) 455-3545
Enumerated
Apr 4, 2017
Record last updated
Feb 20, 2024
Fax
(208) 454-9690
Medicare enrollment
Enrolled (PECOS I20210628001079); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 family medicine physician records → All 1,316 in Idaho → Look up another NPI →

Also registered at 4815 Cleveland Blvd

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

  1. Karen Bean, NPNurse Practitioner1326132432
  2. Derek Hamblin, M.D.Family Medicine Physician1790713204
  3. Cody Rogers, DOFamily Medicine Physician1437714474
  4. Donald Sanford, PAPhysician Assistant1710537964

Verify Michael Slack 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-1447    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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19% fewer Medicare Part D claims than the average family medicine physician in 2024

2,855 Medicare Part D claims for 246 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Michael Slack2,855
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium269 claims
  2. Losartan Potassium178 claims
  3. Lisinopril177 claims
  4. Levothyroxine Sodium165 claims
  5. Amlodipine Besylate164 claims
  6. Omeprazole107 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: $1,591.46

72 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Slack$1,591.46
  2. Specialty average$902.55

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. Alliance Medical Group LLCCaldwell, ID

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

Michael Slack among 1,316 family medicine physician records in Idaho

Michael Slack, DO is one of 1,316 family medicine physician records with a practice address in Idaho. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 71% of them.

  • NPI issued2017 · 71% of these records are older, 27% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2017 · median 2009 among the 793 with a school on file
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

44 family medicine physician records list a practice address in Caldwell

They are 44 of the 736 NPPES records with a practice address in Caldwell, and 1,316 family medicine physician records in Idaho.

All 1,316 in Idaho → Every provider in Caldwell → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Richard Augustus, MDCaldwell, ID 836051699717793
  2. Kevin Chicoine, MDCaldwell, ID 836051730121740
  3. Derek Hamblin, M.D.Caldwell, ID 836051790713204
  4. Brandon Isaacs, DOCaldwell, ID 836051801833645
  5. Lisa Koltes, MDCaldwell, ID 836051780626127
  6. Stacy Lamers, DOCaldwell, ID 836051003867094
  7. Paul McConnel, MDCaldwell, ID 836051407876071
  8. Travis Page, D.O.Caldwell, ID 836051396760385

Common questions

What is Michael Slack, DO's NPI number?

Michael Slack, DO's National Provider Identifier (NPI) is 1679006076, issued on Apr 4, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Michael Slack, DO located?

The NPPES record lists a practice address at 4815 Cleveland Blvd, Caldwell, ID, 83605. Phone: (208) 455-3545. Providers update this record themselves, so call before visiting.

How can I verify Michael Slack, DO's license?

NPPES lists Idaho license number O-1447, 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 Michael Slack, DO prescribe under Medicare Part D?

In 2024, Michael Slack, DO had 2,855 Medicare Part D claims for 246 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.