NPPES file of Aug 9, 2026

Elena R. Lopez, MD

Family Medicine Physician · Chicago, IL

Elena R. Lopez, MD is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1831161132, issued on Feb 2, 2006. Check the license (Illinois 036-104170, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1831161132
Name
Elena R. Lopez
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
036-104170 IL
C149479 CA
2015030335 MO
Self-reported in NPPES; status is on the state search
Practice location
1940 W 18TH St FL 1, Chicago, IL 60608
Phone
(773) 254-1400
Enumerated
Feb 2, 2006
Record last updated
Jun 20, 2022
Medicaid ID
036104170 IL
Medicare enrollment
Enrolled (PECOS I20221014001655); may accept Medicare assignment
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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Verify Elena R. Lopez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036-104170
    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 Illinois license search

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96% fewer Medicare Part D claims than the average family medicine physician in 2024

159 Medicare Part D claims for 33 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Elena Lopez159
  2. Specialty average3,544

Most prescribed

  1. Losartan Potassium17 claims
  2. Atorvastatin Calcium15 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.

Elena R. Lopez among 6,215 family medicine physician records in Illinois

Elena R. Lopez, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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, 59% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1987 · median 2006 among the 3,714 with a school on file
  • Record last updated2022 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,593 family medicine physician records list a practice address in Chicago

They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.

The 8 family medicine physician records with the nearest ZIP codes

  1. Ihab Aziz, MDChicago, IL 606081508968652
  2. Josefina Caling-Cruz, M.D.Chicago, IL 606081255426482
  3. Jackie Cohen, MDChicago, IL 606081225111842
  4. Andrew Defuniak, M.D.Chicago, IL 606081508951351
  5. Sagina Hanjrah, MDChicago, IL 606081134170756
  6. Maria James-Silva, MDChicago, IL 606081780764084
  7. Keith Knapp, M.D.Chicago, IL 606081104817329
  8. William Luebbe, D.O.Chicago, IL 606081720176605

Common questions

What is Elena R. Lopez, MD's NPI number?

Elena R. Lopez, MD's National Provider Identifier (NPI) is 1831161132, issued on Feb 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elena R. Lopez, MD located?

The NPPES record lists a practice address at 1940 W 18TH St FL 1, Chicago, IL, 60608. Phone: (773) 254-1400. Providers update this record themselves, so call before visiting.

How can I verify Elena R. Lopez, MD's license?

NPPES lists Illinois license number 036-104170, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Elena R. Lopez, MD prescribe under Medicare Part D?

In 2024, Elena R. Lopez, MD had 159 Medicare Part D claims for 33 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.