Gilberto Marquez, M.D.
NPI 1689626731 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gilberto Marquez, M.D. is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1689626731).
Provider details
- NPI number
- 1689626731
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47623020 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
464 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 265 | $85 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 85 | $122 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 76 | $119 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 15 | $194 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 | 12 | $142 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 132 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 433 | 116 |
| Losartan Potassium | 324 | 97 |
| Amlodipine Besylate | 291 | 81 |
| Lisinopril | 272 | 75 |
| Pantoprazole Sodium | 246 | 56 |
| Levothyroxine Sodium | 225 | 59 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-17
- Last updated
- 2016-03-04
Frequently asked questions
- What is Gilberto Marquez's NPI number?
- Gilberto Marquez's National Provider Identifier (NPI) is 1689626731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gilberto Marquez's specialty?
- Gilberto Marquez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gilberto Marquez located?
- Gilberto Marquez's practice location on file with NPPES is 210 W Capitol Dr, Milwaukee, WI 53212-1123.
- What is Gilberto Marquez's phone number?
- The practice phone number listed in the NPPES registry for Gilberto Marquez is (414) 727-6320.
- Does Gilberto Marquez accept Medicare?
- Gilberto Marquez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gilberto Marquez's NPI active?
- Yes — Gilberto Marquez's NPI (1689626731) is active in the NPPES registry as of the last update on 2016-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.