Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Pulmonary Disease

Mark J. Buchfuhrer, MD

Works at hospitals in Downey, CA · Stanford, CA · California

Summary

Mark J. Buchfuhrer, MD (Pulmonary Disease) is listed by Medicare at 2 hospitals in Downey, CA and Stanford, CA. NPI 1639130693. 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 Mark J. Buchfuhrer, 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

Pulmonary DiseasePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
49Years since medical school (graduated 1977)
MaleGender (as listed)
Stanford Health CareGroup practice

Quick answers

Which hospitals does Mark J. Buchfuhrer work at?
Medicare's official clinician data lists Mark J. Buchfuhrer at 2 hospitals: PIH Health Downey Hospital and Stanford Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark J. Buchfuhrer see patients?
Medicare's clinician data lists 4 practice locations, including Downey, CA, Stanford, CA and Redwood City, CA. Call before your visit to confirm the address.
What is Mark J. Buchfuhrer's specialty?
Medicare lists Pulmonary Disease as the primary specialty.
Does Mark J. Buchfuhrer accept Medicare assignment?
Yes. Medicare's clinician data says Mark J. Buchfuhrer 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 Mark J. Buchfuhrer offer telehealth?
Medicare's clinician data says Mark J. Buchfuhrer offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mark J. Buchfuhrer?
(562) 904-1104, as listed in official Medicare / NPI Registry data.
What is Mark J. Buchfuhrer's NPI number?
1639130693. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mark J. Buchfuhrer works

Medicare's Facility Affiliation Data lists Mark J. Buchfuhrer 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 Mark J. Buchfuhrer is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mark J. Buchfuhrer as a member of this group (CMS data updated 2026-10-02).

  • Stanford Health Care3,122 clinicians in the group

Specialties

Find other Pulmonary Disease doctors in California →

Other pulmonologists in Downey

Clinicians with the same Medicare primary specialty in Downey, CA — not a recommendation.

All pulmonologists in Downey →

Clinician information

CredentialMD
Graduation year1977
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639130693
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