NPPES file of Aug 9, 2026

Marla Z. Wolfert, M.D.

Gastroenterology Physician · Sheboygan, WI

Marla Z. Wolfert, M.D. is a gastroenterology physician with a practice address in Sheboygan, Wisconsin, and NPI 1528232576, issued on Apr 21, 2008. Check the license (Wisconsin 62396-020, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528232576
Name
Marla Z. Wolfert
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
62396-020 WI
Self-reported in NPPES; status is on the state search
Practice location
1621 N Taylor Dr, Sheboygan, WI 53081
Phone
(920) 496-4700
Enumerated
Apr 21, 2008
Record last updated
Jun 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140926000847); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2008
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 1621 N Taylor Dr

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

  1. Laura Alsteen, APNPNurse Practitioner1114215886
  2. Dawn Baarendse, NPObstetrics & Gynecology Nurse Practitioner1265604839
  3. David Beimborn, PTPhysical Therapist1972804854
  4. Steven Bettag, MDMedical Oncology Physician1669529608
  5. Katharine Donohue, FNP-CFamily Nurse Practitioner1699761403
  6. Jennifer English, APNPNurse Practitioner1477620201

Verify Marla Z. Wolfert in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 62396-020
    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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33% more Medicare Part D claims than the average gastroenterology physician in 2024

1,075 Medicare Part D claims for 504 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Marla Wolfert1,075
  2. Specialty average811

Most prescribed

  1. Sod Sulf-Potass Sulf-Mag Sulf292 claims
  2. Omeprazole138 claims
  3. Pantoprazole Sodium112 claims
  4. Famotidine41 claims
  5. Diphenoxylate-Atropine35 claims
  6. Peg 3350-Electrolyte33 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.

The MIPS final score for 2023 (Medicare payment program): 94.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. St Vincent Hospital-Hospital Sisters-Third Order OF St FrancisManitowoc, WI
  2. St. Nicholas Hospital-Sisters OF The Third Order OF St FrancisSheboygan, WI

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

Marla Z. Wolfert among 340 gastroenterology physician records in Wisconsin

Marla Z. Wolfert, M.D. is one of 340 gastroenterology physician records with a practice address in Wisconsin. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 64% of them.

  • NPI issued2008 · 64% of these records are older, 32% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2008 · median 2003 among the 239 with a school on file
  • Record last updated2020 · 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 207RG0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Wisconsin

There are 340 gastroenterology physician records in Wisconsin.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Adebisi Alimi, M.D.Sheboygan, WI 530811649599317
  2. Michael Baird, M.D.Sheboygan, WI 530811346252459
  3. Anushka BaruahSheboygan, WI 530811669887675
  4. Amir Patel, MDSheboygan, WI 530811265685200
  5. Patrick Regan, MDSheboygan, WI 530811518904762
  6. Rana Sokhi, MDSheboygan, WI 530811356458566
  7. Edward Hurtte, MDMequon, WI 530921699336446
  8. Lilani Perera, MDMequon, WI 530921669559969

Common questions

What is Marla Z. Wolfert, M.D.'s NPI number?

Marla Z. Wolfert, M.D.'s National Provider Identifier (NPI) is 1528232576, issued on Apr 21, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Marla Z. Wolfert, M.D. located?

The NPPES record lists a practice address at 1621 N Taylor Dr, Sheboygan, WI, 53081. Phone: (920) 496-4700. Providers update this record themselves, so call before visiting.

How can I verify Marla Z. Wolfert, M.D.'s license?

NPPES lists Wisconsin license number 62396-020, 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 Marla Z. Wolfert, M.D. prescribe under Medicare Part D?

In 2024, Marla Z. Wolfert, M.D. had 1,075 Medicare Part D claims for 504 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Marla Z. Wolfert, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.