Cullen Buchanan, MD
Cardiovascular Disease Physician · Madison, WI
Cullen Buchanan, MD is a cardiovascular disease physician with a practice address in Madison, Wisconsin, and NPI 1003312026, issued on Mar 30, 2018. Check the license (Wisconsin 76891, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Cullen Buchanan
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 76891 WI
Self-reported in NPPES; status is on the state search - Practice location
- 600 Highland Ave, Madison, WI 53792
- Phone
- (608) 915-0200
- Enumerated
- Mar 30, 2018
- Record last updated
- Sep 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20250825000432); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2018
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 449 in Wisconsin → Look up another NPI →
Also registered at 600 Highland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cullen Buchanan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 76891Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
51 Medicare Part D claims for 15 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium11 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: $20.78
1 payment: food and beverage; the largest payer was Actelion Pharmaceuticals US, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- 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).
Cullen Buchanan among 449 cardiovascular disease physician records in Wisconsin
Cullen Buchanan, MD is one of 449 cardiovascular disease physician records with a practice address in Wisconsin. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2001 among the 279 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Wisconsin
There are 449 cardiovascular disease physician records in Wisconsin.
All 449 in Wisconsin → Every provider in Madison → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Ford Ballantyne, MDMadison, WI 537921679540207
- Thorbjorn Gudjonsson, MDMadison, WI 537921396712907
- Timothy Kamp, MD PHDMadison, WI 537921619943602
- Jon Keevil, MDMadison, WI 537921497722086
- Annie Kelly, MDMadison, WI 537921669449302
- Chris Konstantinou, MDMadison, WI 537921346246162
- Todd Noreuil, MDMadison, WI 537921053396242
- Anne Oconnor, MDMadison, WI 537921942245477
Common questions
What is Cullen Buchanan, MD's NPI number?
Cullen Buchanan, MD's National Provider Identifier (NPI) is 1003312026, issued on Mar 30, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Cullen Buchanan, MD located?
The NPPES record lists a practice address at 600 Highland Ave, Madison, WI, 53792. Phone: (608) 915-0200. Providers update this record themselves, so call before visiting.
How can I verify Cullen Buchanan, MD's license?
NPPES lists Wisconsin license number 76891, 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 Cullen Buchanan, MD prescribe under Medicare Part D?
In 2024, Cullen Buchanan, MD had 51 Medicare Part D claims for 15 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.