Leah Elizabeth Larson, MD MS
Obstetrics & Gynecology Physician · Chicago, IL
Leah Elizabeth Larson, MD MS is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1629719158, issued on Apr 6, 2022. Check the license (Illinois 125.080262, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Leah Elizabeth Larson
- Credential
- MD MS
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 125.080262 IL
Self-reported in NPPES; status is on the state search - Practice location
- 820 S Wood St Ste 100, Chicago, IL 60612
- Phone
- (312) 996-2933
- Enumerated
- Apr 6, 2022
- Record last updated
- Jun 1, 2022
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 820 S Wood St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leah Elizabeth Larson 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 125.080262Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
18 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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.
Leah Elizabeth Larson among 2,062 obstetrics & gynecology physician records in Illinois
Leah Elizabeth Larson, MD MS 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 2022, is newer than 90% of them.
- NPI issued2022 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2022 · 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).
700 obstetrics & gynecology physician records list a practice address in Chicago
They are 700 of the 63,379 NPPES records with a practice address in Chicago, and 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Chicago → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Eric Brown, M.D.Chicago, IL 606121356303663
- Allison Cowett, M.D.Chicago, IL 606121639282668
- Sadia Haider, MDChicago, IL 606121033163522
- Kimberly Jezek-TischChicago, IL 606121720090269
- Robin Jones, M.D.Chicago, IL 606121942262258
- Martha KaempfeChicago, IL 606121821000142
- Andrea KempChicago, IL 606121932112927
- Edward Linn, M.D.Chicago, IL 606121730178765
Common questions
What is Leah Elizabeth Larson, MD MS's NPI number?
Leah Elizabeth Larson, MD MS's National Provider Identifier (NPI) is 1629719158, issued on Apr 6, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Leah Elizabeth Larson, MD MS located?
The NPPES record lists a practice address at 820 S Wood St Ste 100, Chicago, IL, 60612. Phone: (312) 996-2933. Providers update this record themselves, so call before visiting.
How can I verify Leah Elizabeth Larson, MD MS's license?
NPPES lists Illinois license number 125.080262, 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 Leah Elizabeth Larson, MD MS prescribe under Medicare Part D?
In 2024, Leah Elizabeth Larson, MD MS had 18 Medicare Part D claims; 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.