NPPES file of Aug 9, 2026

Maryl R. Johnson, MD

Advanced Heart Failure and Transplant Cardiology Physician · Madison, WI

Maryl R. Johnson, MD is an advanced heart failure and transplant cardiology physician with a practice address in Madison, Wisconsin, and NPI 1548236581, issued on Feb 28, 2006. Check the license (Wisconsin 44716, 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
1548236581
Name
Maryl R. Johnson
Credential
MD
Primary taxonomy
Advanced Heart Failure and Transplant Cardiology Physician 207RA0001X
License number
44716 WI
Self-reported in NPPES; status is on the state search
Practice location
600 Highland Ave, Madison, WI 53792
Phone
(608) 263-1530
Enumerated
Feb 28, 2006
Record last updated
Jan 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(608) 265-8887
Medicare enrollment
Enrolled (PECOS I20060117000381); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 1977
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 600 Highland Ave

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

  1. Michael AabergSurgery Physician1346991064
  2. Carrah Aadrik, CRNACertified Registered Nurse Anesthetist1326423286
  3. Daniel Abbott, MDSurgical Oncology Physician1750412615
  4. Alaa Abd-ElsayedPain Medicine Physician1194967703
  5. Safiyya Abdulkadir, MDRheumatology Physician1093455826
  6. Edwin Abel, M.D.Urology Physician1083800510

Verify Maryl R. Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 44716
    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.

13% more Medicare Part D claims than the average advanced heart failure and transplant cardiology physician in 2024

2,229 Medicare Part D claims for 264 beneficiaries, against an average of 1,965 among the 1,124 providers of this specialty who prescribed in Part D.

  1. Maryl Johnson2,229
  2. Specialty average1,965

Most prescribed

  1. Entresto177 claims
  2. Spironolactone170 claims
  3. Metoprolol Succinate168 claims
  4. Carvedilol135 claims
  5. Furosemide104 claims
  6. Amlodipine Besylate85 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: $203.47

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 1,027 providers of this specialty with any payment received $10,265.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maryl Johnson$203
  2. Specialty average$10,266

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Swedishamerican HospitalRockford, IL
  2. 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).

Maryl R. Johnson among 16 advanced heart failure and transplant cardiology physician records in Wisconsin

Maryl R. Johnson, MD is one of 16 advanced heart failure and transplant cardiology physician records with a practice address in Wisconsin. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 50% newer
  • In a Medicare fileYes · 94% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated1977 · median 1999 among the 13 with a school on file
  • Record last updated2021 · 25% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Advanced Heart Failure and Transplant Cardiology Physician providers in Wisconsin

There are 16 advanced heart failure and transplant cardiology physician records in Wisconsin.

The 8 advanced heart failure and transplant cardiology physician records with the nearest ZIP codes

  1. Ahmed Abouhamda, MDMadison, WI 537921255027652
  2. David Murray, MDMadison, WI 537921669496675
  3. Somto Nwaedozie, MDMadison, WI 537921487216560
  4. Veli Topkara, M.D.Madison, WI 537921497085609
  5. Sofia Masri, MDMadison, WI 537031053465658
  6. Ravi Dhingra, MD, MPHMilwaukee, WI 532261477507242
  7. Renee Kursel, M.D.Milwaukee, WI 532261770872210
  8. Jose Mendez, MDMilwaukee, WI 532261013965482

Common questions

What is Maryl R. Johnson, MD's NPI number?

Maryl R. Johnson, MD's National Provider Identifier (NPI) is 1548236581, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Maryl R. Johnson, MD located?

The NPPES record lists a practice address at 600 Highland Ave, Madison, WI, 53792. Phone: (608) 263-1530. Providers update this record themselves, so call before visiting.

How can I verify Maryl R. Johnson, MD's license?

NPPES lists Wisconsin license number 44716, 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 Maryl R. Johnson, MD prescribe under Medicare Part D?

In 2024, Maryl R. Johnson, MD had 2,229 Medicare Part D claims for 264 beneficiaries; the average among advanced heart failure and transplant cardiology physician prescribers was 1,965. 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.