Esteban A. Marquez, MD
Internal Medicine Physician · Baltimore, MD
Esteban A. Marquez, MD is an internal medicine physician with a practice address in Baltimore, Maryland, and NPI 1851352819, issued on Mar 30, 2006. Check the license (Maryland D52191, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Esteban A. Marquez
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D52191 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2323 Orleans St, Baltimore, MD 21224
- Phone
- (410) 558-4747
- Enumerated
- Mar 30, 2006
- Record last updated
- May 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (410) 732-0185
- Medicare enrollment
- Enrolled (PECOS I20200521000746); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 2323 Orleans St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Esteban A. Marquez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D52191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 86.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Johns Hopkins Community Physicians, IncLaurel, MD
- Medstar Medical Group II LLCWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Esteban A. Marquez among 3,904 internal medicine physician records in Maryland
Esteban A. Marquez, MD is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% 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, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2003 among the 2,445 with a school on file
- Record last updated2020 · 59% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,278 internal medicine physician records list a practice address in Baltimore
They are 1,278 of the 35,183 NPPES records with a practice address in Baltimore, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Baltimore → Internal Medicine Physician nationwide →
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Common questions
What is Esteban A. Marquez, MD's NPI number?
Esteban A. Marquez, MD's National Provider Identifier (NPI) is 1851352819, issued on Mar 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Esteban A. Marquez, MD located?
The NPPES record lists a practice address at 2323 Orleans St, Baltimore, MD, 21224. Phone: (410) 558-4747. Providers update this record themselves, so call before visiting.
How can I verify Esteban A. Marquez, MD's license?
NPPES lists Maryland license number D52191, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Esteban A. Marquez, MD's MIPS final score?
The 2023 MIPS final score is 86.8 of 100, reported for the practice group. 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.