NPPES file of Aug 9, 2026

Marcelo U. Grazziotin, M.D.

Surgery Physician · Green Bay, WI

Marcelo U. Grazziotin, M.D. is a surgery physician with a practice address in Green Bay, Wisconsin, and NPI 1497758072, issued on May 27, 2005. Check the license (Wisconsin 46257-20, 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
1497758072
Name
Marcelo U. Grazziotin
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License numbers
46257-20 WI
46257 WI
Self-reported in NPPES; status is on the state search
Practice location
720 S. Vanburen St. Suite 201, Green Bay, WI 54301
Phone
(920) 433-7488
Enumerated
May 27, 2005
Record last updated
Jul 26, 2022
Fax
(920) 438-7193
Medicare enrollment
Enrolled (PECOS I20201230001092); accepts Medicare assignment
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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Verify Marcelo U. Grazziotin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 46257-20
    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

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25% fewer Medicare Part D claims than the average surgery physician in 2024

110 Medicare Part D claims for 94 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 92 claims were for opioids.

  1. Marcelo Grazziotin110
  2. Specialty average147

Most prescribed

  1. Hydrocodone-Acetaminophen67 claims
  2. Oxycodone-Acetaminophen11 claims
  3. Tramadol Hcl11 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: $28.50

1 payment: food and beverage; the largest payer was Endomagnetics Ltd. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marcelo Grazziotin$28.50
  2. Specialty average$3,513.80

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. Bellin Memorial Hospital IncIron Mountain, MI
  2. Oconto Hospital And Medical Center IncOconto, WI

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

Marcelo U. Grazziotin among 726 surgery physician records in Wisconsin

Marcelo U. Grazziotin, M.D. is one of 726 surgery physician records with a practice address in Wisconsin. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1992 · median 2006 among the 446 with a school on file
  • Record last updated2022 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Wisconsin

There are 726 surgery physician records in Wisconsin.

The 8 surgery physician records with the nearest ZIP codes

  1. Rishi Chaudhuri, MDGreen Bay, WI 543011376891028
  2. Nicholas Coorough, M.D.Green Bay, WI 543011689010118
  3. Jennifer Erickson-Foster, M.D.Green Bay, WI 543011952568016
  4. Laura Hill, M.D.Green Bay, WI 543011407267206
  5. Hadi Khan, M.D.Green Bay, WI 543011265605679
  6. Richard McNutt, MDGreen Bay, WI 543011215014279
  7. Phillip Mercier, M.D.Green Bay, WI 543011205282852
  8. Matthew Ough, MDGreen Bay, WI 543011376705533

Common questions

What is Marcelo U. Grazziotin, M.D.'s NPI number?

Marcelo U. Grazziotin, M.D.'s National Provider Identifier (NPI) is 1497758072, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Marcelo U. Grazziotin, M.D. located?

The NPPES record lists a practice address at 720 S. Vanburen St. Suite 201, Green Bay, WI, 54301. Phone: (920) 433-7488. Providers update this record themselves, so call before visiting.

How can I verify Marcelo U. Grazziotin, M.D.'s license?

NPPES lists Wisconsin license number 46257-20, 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 Marcelo U. Grazziotin, M.D. prescribe under Medicare Part D?

In 2024, Marcelo U. Grazziotin, M.D. had 110 Medicare Part D claims for 94 beneficiaries; the average among surgery physician prescribers was 147. 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.