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Addiction Medicine

John L. Hart, DO

Works at hospitals in Vancouver, WA · Washington

Summary

John L. Hart, DO (Addiction Medicine) is listed by Medicare at 1 hospital in Vancouver, WA. NPI 1225112600. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John L. Hart, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Addiction MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
57Years since medical school (graduated 1969)
Kansas City University Of Physicians And SurgeonsMedical school
MaleGender (as listed)
PeaceHealthGroup practice

Quick answers

Which hospitals does John L. Hart work at?
Medicare's official clinician data lists John L. Hart at 1 hospital: PeaceHealth Southwest Medical Cente. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John L. Hart see patients?
Medicare's clinician data lists 1 practice location in Vancouver, WA. Call before your visit to confirm the address.
What is John L. Hart's specialty?
Medicare lists Addiction Medicine as the primary specialty, and also Physical Medicine and Rehabilitation and Preventive Medicine.
Does John L. Hart accept Medicare assignment?
Yes. Medicare's clinician data says John L. Hart accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does John L. Hart offer telehealth?
Medicare's clinician data says John L. Hart offers telehealth services. Ask the office which visits can be done by video or phone.
What is John L. Hart's NPI number?
1225112600. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John L. Hart works

Medicare's Facility Affiliation Data lists John L. Hart at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John L. Hart is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John L. Hart as a member of this group (CMS data updated 2026-10-02).

  • PeaceHealth103 clinicians in the group

Specialties

Find other Addiction Medicine doctors in Washington →

Other addiction medicine doctors in Washington

Clinicians with the same Medicare primary specialty in Washington — not a recommendation.

All addiction medicine doctors in Washington →

Clinician information

CredentialDO
Medical schoolKansas City University Of Physicians And Surgeons
Graduation year1969
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1225112600
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians