Bertha A. Lopez, MD
Obstetrics & Gynecology Physician · Oak Park, IL
Bertha A. Lopez, MD is an obstetrics & gynecology physician with a practice address in Oak Park, Illinois, and NPI 1578582979, issued on Jul 18, 2006. Check the license (Illinois 036090643, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Bertha A. Lopez
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 036090643 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1 Erie CT, Oak Park, IL 60302
- Phone
- (708) 386-1390
- Enumerated
- Jul 18, 2006
- Record last updated
- Dec 31, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 36090643 IL
- Medicare enrollment
- Enrolled (PECOS I20040124000251); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 1 Erie CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Bertha A. Lopez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036090643Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
153 Medicare Part D claims for 50 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Fluconazole26 claims
- Estradiol24 claims
- Metronidazole18 claims
- Medroxyprogesterone Acetate17 claims
- Clobetasol Propionate13 claims
- Norethindrone Acetate12 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 one group practice
- Pcc Community Wellness CenterOak Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bertha A. Lopez among 2,062 obstetrics & gynecology physician records in Illinois
Bertha A. Lopez, MD is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1992 · median 2006 among the 1,168 with a school on file
- Record last updated2019 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Illinois
There are 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Oak Park → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Kenneth Bray, MDOak Park, IL 603021740295161
- Monique Brotman, D.O.Oak Park, IL 603021447395108
- Devyani Chawla, MDOak Park, IL 603021861915969
- Lyndon Taylor, MDOak Park, IL 603021003924127
- Vasant Acharya, M.D.Oak Park, IL 603011124035944
- Elaine Biester, M.D.Oak Park, IL 603011841300464
- Lisa Chorzempa-Schainis, M.D.Oak Park, IL 603011629085444
- Ruth Dubyel, D.O.Oak Park, IL 603011134408446
Common questions
What is Bertha A. Lopez, MD's NPI number?
Bertha A. Lopez, MD's National Provider Identifier (NPI) is 1578582979, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bertha A. Lopez, MD located?
The NPPES record lists a practice address at 1 Erie CT, Oak Park, IL, 60302. Phone: (708) 386-1390. Providers update this record themselves, so call before visiting.
How can I verify Bertha A. Lopez, MD's license?
NPPES lists Illinois license number 036090643, 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 Bertha A. Lopez, MD prescribe under Medicare Part D?
In 2024, Bertha A. Lopez, MD had 153 Medicare Part D claims for 50 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.