Gilberto Marquez, M.D.
Internal Medicine Physician · Milwaukee, WI
Gilberto Marquez, M.D. is an internal medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1689626731, issued on May 17, 2006. Check the license (Wisconsin 47623020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Gilberto Marquez
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 47623020 WI
47623 WI
Self-reported in NPPES; status is on the state search - Practice location
- 210 W Capitol Dr, Milwaukee, WI 53212
- Phone
- (414) 727-6320
- Enumerated
- May 17, 2006
- Record last updated
- Mar 4, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (414) 727-6329
- Medicare enrollment
- Enrolled (PECOS I20060615000326); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 210 W Capitol Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mike Bauer, MSWClinical Social Worker1801954102
- Michelle BellingerProfessional Counselor1750835625
- Joanne Bloomstein, MDPsychiatry Physician1063556256
- Jennifer Bowman, LPCProfessional Counselor1194481531
- Annie CarrellPsychiatric/Mental Health Nurse Practitioner1184076713
- Susan Chen, APNPFamily Nurse Practitioner1265951651
Verify Gilberto Marquez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 47623020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
7,899 Medicare Part D claims for 638 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 222 claims were for opioids.
Most prescribed
- Atorvastatin Calcium433 claims
- Losartan Potassium324 claims
- Amlodipine Besylate291 claims
- Lisinopril272 claims
- Pantoprazole Sodium246 claims
- Levothyroxine Sodium225 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 3 group practices
- Advantage Physical Therapy And Sports Rehab, LLCHales Corners, WI
- Presbyterian Homes OF Wisconsin IncWaukesha, WI
- Prohealth Medical Group IncMuskego, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gilberto Marquez among 2,078 internal medicine physician records in Wisconsin
Gilberto Marquez, M.D. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2003 · median 2002 among the 1,098 with a school on file
- Record last updated2016 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
382 internal medicine physician records list a practice address in Milwaukee
They are 382 of the 18,389 NPPES records with a practice address in Milwaukee, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Milwaukee → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alaaeldin Alhessi, MDMilwaukee, WI 532121689265621
- Lisa Benson, MDGlendale, WI 532121780792713
- Brian Hirano, MDMilwaukee, WI 532121770672818
- Adam King, MS, MDMilwaukee, WI 532121932257623
- Adam Romeiser, M.D.Milwaukee, WI 532121558527044
- Christopher Withers, D.O.Milwaukee, WI 532121942221114
- Anju Adhikari, MDMilwaukee, WI 532111821449968
- Naveen Bilgi, MDMilwaukee, WI 532111346482775
Common questions
What is Gilberto Marquez, M.D.'s NPI number?
Gilberto Marquez, M.D.'s National Provider Identifier (NPI) is 1689626731, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gilberto Marquez, M.D. located?
The NPPES record lists a practice address at 210 W Capitol Dr, Milwaukee, WI, 53212. Phone: (414) 727-6320. Providers update this record themselves, so call before visiting.
How can I verify Gilberto Marquez, M.D.'s license?
NPPES lists Wisconsin license number 47623020, 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 Gilberto Marquez, M.D. prescribe under Medicare Part D?
In 2024, Gilberto Marquez, M.D. had 7,899 Medicare Part D claims for 638 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.