NPPES file of Aug 9, 2026

Mark J. Biagtan

Allergy Physician · Madison, WI

Mark J. Biagtan is an allergy physician with a practice address in Madison, Wisconsin, and NPI 1376707307, issued on Jul 18, 2008. Check the license (Wisconsin 54168, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1376707307
Name
Mark J. Biagtan
Primary taxonomy
Allergy Physician 207KA0200X
License number
54168 WI
Self-reported in NPPES; status is on the state search
Practice location
20 S Park St, Madison, WI 53715
Phone
(608) 287-2600
Enumerated
Jul 18, 2008
Record last updated
Jan 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(608) 287-2610
Medicare enrollment
Enrolled (PECOS I20140529001828); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2008
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.
Download card Updates feed

Also registered at 20 S Park St

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

  1. Luke Addesso, MDPediatrics Physician1013470186
  2. Mackenzie Asel, M.D.Dermatology Physician1831538099
  3. Elizabeth Bartholomew, LCSWClinical Social Worker1679851398
  4. Sarah Benedict, NPNurse Practitioner1336648039
  5. Eliza Bennett, M.D.Obstetrics & Gynecology Physician1003852161
  6. Stephen Bernsten, MDPlastic Surgery Physician1114989043

Verify Mark J. Biagtan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 54168
    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 Wisconsin 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

4.2 times the Medicare Part D claims of the average allergy physician in 2024

3,165 Medicare Part D claims for 490 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.

  1. Mark Biagtan3,165
  2. Specialty average750

Most prescribed

  1. Montelukast Sodium353 claims
  2. Azelastine Hcl317 claims
  3. Fluticasone Propionate Hfa284 claims
  4. Advair Hfa272 claims
  5. Fluticasone Propionate204 claims
  6. Albuterol Sulfate Hfa182 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.

Bills Medicare through one group practice

  1. University OF Wisconsin Medical Foundation IncMadison, WI

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

Allergy Physician providers in Wisconsin

There are 18 allergy physician records in Wisconsin.

Other allergy physician records in Wisconsin

  1. Mary Burnett, M.D.Wauwatosa, WI1437310596
  2. Robert Bush, MDMadison, WI1881660801
  3. James Cranberg, M.D.Wauwatosa, WI1073665626
  4. Marshall Cusic, M.D.Marshfield, WI1487753406
  5. David Edmondson, DOWausau, WI1124079033
  6. Courtney GaberinoMadison, WI1689170979
  7. Daniel HambrookWest Bend, WI1770665507
  8. Tad Johnson, MDJanesville, WI1659339919
  9. Steven Kagen, M.D.Appleton, WI1235175589
  10. Eun Young Kim, M.D.Oshkosh, WI1093708356

Common questions

What is Mark J. Biagtan's NPI number?

Mark J. Biagtan's National Provider Identifier (NPI) is 1376707307, issued on Jul 18, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mark J. Biagtan located?

The NPPES record lists a practice address at 20 S Park St, Madison, WI, 53715. Phone: (608) 287-2600. Providers update this record themselves, so call before visiting.

How can I verify Mark J. Biagtan's license?

NPPES lists Wisconsin license number 54168, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark J. Biagtan prescribe under Medicare Part D?

In 2024, Mark J. Biagtan had 3,165 Medicare Part D claims for 490 beneficiaries; the average among allergy physician prescribers was 750. 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.

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.