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Allergy/Immunology

Mark J. Biagtan, MD

Works at hospitals in Madison, WI · Wisconsin

Summary

Mark J. Biagtan, MD (Allergy/Immunology) is listed by Medicare at 1 hospital in Madison, WI. NPI 1376707307. 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. Biagtan, 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

Allergy/ImmunologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
18Years since medical school (graduated 2008)
University Of Wisconsin School Of MedicineMedical school
MaleGender (as listed)
University of Wisconsin Medical Foundation IncGroup practice

Quick answers

Which hospitals does Mark J. Biagtan work at?
Medicare's official clinician data lists Mark J. Biagtan at 1 hospital: University of WI Hospitals & Clinics Authority. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark J. Biagtan see patients?
Medicare's clinician data lists 2 practice locations, including Madison, WI. Call before your visit to confirm the address.
What is Mark J. Biagtan's specialty?
Medicare lists Allergy/Immunology as the primary specialty, and also Pediatric Medicine.
Does Mark J. Biagtan accept Medicare assignment?
Yes. Medicare's clinician data says Mark J. Biagtan 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. Biagtan offer telehealth?
Medicare's clinician data says Mark J. Biagtan offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mark J. Biagtan?
(608) 287-2076, as listed in official Medicare / NPI Registry data.
What is Mark J. Biagtan's NPI number?
1376707307. 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. Biagtan works

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

Group practices

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

  • University of Wisconsin Medical Foundation Inc2,553 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Wisconsin →

Other allergist and immunologists in Madison

Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.

All allergist and immunologists in Madison →

Clinician information

CredentialMD
Medical schoolUniversity Of Wisconsin School Of Medicine
Graduation year2008
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1376707307
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