NPPES file of Aug 9, 2026

Randy S. Heidel, MD

Internal Medicine Physician · Madison, WI

Randy S. Heidel, MD is an internal medicine physician with a practice address in Madison, Wisconsin, and NPI 1003855206, issued on Jun 5, 2006. Check the license (Wisconsin 36553-020, 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
1003855206
Name
Randy S. Heidel
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
36553-020 WI
Self-reported in NPPES; status is on the state search
Practice location
20 S Park St, Madison, WI 53715
Phone
(608) 287-2250
Enumerated
Jun 5, 2006
Record last updated
Dec 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(608) 287-2438
Medicaid ID
1003855206 WI
Medicare enrollment
Enrolled (PECOS I20100312000242); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 1992
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.
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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 Randy S. Heidel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 36553-020
    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.

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3.0 times the Medicare Part D claims of the average internal medicine physician in 2024

9,632 Medicare Part D claims for 704 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 319 claims were for opioids.

  1. Randy Heidel9,632
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium638 claims
  2. Amlodipine Besylate444 claims
  3. Omeprazole358 claims
  4. Levothyroxine Sodium306 claims
  5. Lisinopril270 claims
  6. Metoprolol Succinate245 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).

Randy S. Heidel among 2,078 internal medicine physician records in Wisconsin

Randy S. Heidel, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 46% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1992 · median 2002 among the 1,098 with a school on file
  • Record last updated2021 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

417 internal medicine physician records list a practice address in Madison

They are 417 of the 15,014 NPPES records with a practice address in Madison, and 2,078 internal medicine physician records in Wisconsin.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Thomas Bugliosi, M.D.Madison, WI 537151629055124
  2. Rebecca Byers, MDMadison, WI 537151568439248
  3. Tony Chang, MDMadison, WI 537151831166990
  4. Heather Childers-Okas, DOMadison, WI 537151093782765
  5. Richard Day, MDMadison, WI 537151972570653
  6. Elizabeth George, MDMadison, WI 537151255308409
  7. Jeremy Jaskunas, MDMadison, WI 537151568438414
  8. Frank Kilpatrick, MDMadison, WI 537151154397172

Common questions

What is Randy S. Heidel, MD's NPI number?

Randy S. Heidel, MD's National Provider Identifier (NPI) is 1003855206, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Randy S. Heidel, MD located?

The NPPES record lists a practice address at 20 S Park St, Madison, WI, 53715. Phone: (608) 287-2250. Providers update this record themselves, so call before visiting.

How can I verify Randy S. Heidel, MD's license?

NPPES lists Wisconsin license number 36553-020, 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 Randy S. Heidel, MD prescribe under Medicare Part D?

In 2024, Randy S. Heidel, MD had 9,632 Medicare Part D claims for 704 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.