Marcus Ronald Chacon, M.D.
Neurology Physician · Madison, WI
Marcus Ronald Chacon, M.D. is a neurology physician with a practice address in Madison, Wisconsin, and NPI 1609953462, issued on Nov 1, 2006. Check the license (Wisconsin 45857-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Marcus Ronald Chacon
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 45857-20 WI
A90899 CA
Self-reported in NPPES; status is on the state search - Practice location
- H6 574 Clinical Science Ctr, Madison, WI 53792
- Phone
- (608) 263-5420
- Enumerated
- Nov 1, 2006
- Record last updated
- Jan 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070714000222); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 399 in Wisconsin → Look up another NPI →
Verify Marcus Ronald Chacon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 45857-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average neurology physician in 2024
37 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Levetiracetam14 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: $96.58
2 payments; by number, the most common kind was food and beverage; the largest payer was Averitas Pharma Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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).
Marcus Ronald Chacon among 399 neurology physician records in Wisconsin
Marcus Ronald Chacon, M.D. is one of 399 neurology 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 53% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2000 · median 2005 among the 274 with a school on file
- Record last updated2021 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Wisconsin
There are 399 neurology physician records in Wisconsin.
All 399 in Wisconsin → Every provider in Madison → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Eric Adelman, MDMadison, WI 537921801913322
- Brad Beinlich, MDMadison, WI 537921679545800
- John Fleming, MDMadison, WI 537921568434777
- Catherine Gallagher, MDMadison, WI 537921891768545
- Audrey Jantzen, M.D.Madison, WI 537921497931661
- Anne Josiah, MDMadison, WI 537921326241944
- Jenny Liao, MDMadison, WI 537921851363063
- Christopher Luzzio, MDMadison, WI 537921720051576
Common questions
What is Marcus Ronald Chacon, M.D.'s NPI number?
Marcus Ronald Chacon, M.D.'s National Provider Identifier (NPI) is 1609953462, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcus Ronald Chacon, M.D. located?
The NPPES record lists a practice address at H6 574 Clinical Science Ctr, Madison, WI, 53792. Phone: (608) 263-5420. Providers update this record themselves, so call before visiting.
How can I verify Marcus Ronald Chacon, M.D.'s license?
NPPES lists Wisconsin license number 45857-20, 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 Marcus Ronald Chacon, M.D. prescribe under Medicare Part D?
In 2024, Marcus Ronald Chacon, M.D. had 37 Medicare Part D claims; the average among neurology physician prescribers was 1,370. 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.