NPPES file of Aug 9, 2026

David Staff, M.D.

Gastroenterology Physician · Milwaukee, WI

David Staff, M.D. is a gastroenterology physician with a practice address in Milwaukee, Wisconsin, and NPI 1386619427, issued on Feb 22, 2006. Check the license (Wisconsin 33572-20, 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
1386619427
Name
David Staff
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
33572-20 WI
Self-reported in NPPES; status is on the state search
Practice location
2801 W Kinnickinnic River Pkwy Ste 1080, Milwaukee, WI 53215
Phone
(414) 908-6506
Enumerated
Feb 22, 2006
Record last updated
Jan 26, 2026
Fax
(414) 908-6510
Medicaid ID
32013000 WI
Medicare enrollment
Enrolled (PECOS I20090325000478); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1991
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 2801 W Kinnickinnic River Pkwy Ste 1080

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

  1. Alison Baierl, PA-CMedical Physician Assistant1831530575
  2. Katie Balderas, PA-CPhysician Assistant1497184279
  3. Aaron Baltz, MDGastroenterology Physician1467499277
  4. William Blosky, M.D.Gastroenterology Physician1740506195
  5. Fabiola Boche, PA-CMedical Physician Assistant1265661847
  6. Tedd Cain, MDGastroenterology Physician1750358115

Verify David Staff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 33572-20
    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

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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2.6 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,091 Medicare Part D claims for 760 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. David Staff2,091
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium587 claims
  2. Omeprazole237 claims
  3. Sod Sulf-Potass Sulf-Mag Sulf210 claims
  4. Gavilyte-G163 claims
  5. Mesalamine56 claims
  6. Peg-3350 And Electrolytes55 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 2 group practices

  1. Gastroenterology Specialists SCWaukesha, WI
  2. GI Associates LLCWaukesha, WI

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

David Staff among 340 gastroenterology physician records in Wisconsin

David Staff, 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 44% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1991 · median 2003 among the 239 with a school on file
  • Record last updated2026 · 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. Cristino Canga, MDMilwaukee, WI 532151588631253
  2. David Carron, MDMilwaukee, WI 532151023085487
  3. Joseph Geenen, MDMilwaukee, WI 532151639146392
  4. Daniel Geenen, M.D.Milwaukee, WI 532151144297508
  5. Nalini Guda, MDMilwaukee, WI 532151750358420
  6. Lyndon Hernandez, MDMilwaukee, WI 532151831166503
  7. Joseph Kim, M.D.Milwaukee, WI 532151962472589
  8. Helen Lantz, MDMilwaukee, WI 532151639146301

Common questions

What is David Staff, M.D.'s NPI number?

David Staff, M.D.'s National Provider Identifier (NPI) is 1386619427, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David Staff, M.D. located?

The NPPES record lists a practice address at 2801 W Kinnickinnic River Pkwy Ste 1080, Milwaukee, WI, 53215. Phone: (414) 908-6506. Providers update this record themselves, so call before visiting.

How can I verify David Staff, M.D.'s license?

NPPES lists Wisconsin license number 33572-20, 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 David Staff, M.D. prescribe under Medicare Part D?

In 2024, David Staff, M.D. had 2,091 Medicare Part D claims for 760 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.