Sheila Loanzon, DO
Obstetrics & Gynecology Physician · Evanston, IL
Sheila Loanzon, DO is an obstetrics & gynecology physician with a practice address in Evanston, Illinois, and NPI 1861674244, issued on Nov 28, 2007. Check the license (Illinois 036.126227, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Sheila Loanzon
- Credential
- DO
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 036.126227 IL
Self-reported in NPPES; status is on the state search - Practice location
- 355 Ridge Ave, Evanston, IL 60202
- Phone
- (847) 316-6229
- Enumerated
- Nov 28, 2007
- Record last updated
- Feb 11, 2022
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 355 Ridge Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sheila Loanzon 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 036.126227Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
182 Medicare Part D claims for 108 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Estradiol54 claims
- Fluconazole22 claims
- Betamethasone Valerate13 claims
- Yuvafem13 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.
Sheila Loanzon among 2,062 obstetrics & gynecology physician records in Illinois
Sheila Loanzon, DO 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 47% 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).
Obstetrics & Gynecology Physician providers in Illinois
There are 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Evanston → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Veronica Arauz, M.D.Evanston, IL 602021528356292
- Robaab Cocco, MDEvanston, IL 602021336379098
- Lucy Heo, DOEvanston, IL 602021336163625
- Christopher-Armand Mabini, DOEvanston, IL 602021992265797
- Jessica Talbot, D.O.Evanston, IL 602021326451139
- Gina Wehrmann, MDEvanston, IL 602021992729263
- Emma Clear, D.O.Evanston, IL 602011790148955
- Jessica Dai, MDEvanston, IL 602011811511363
Common questions
What is Sheila Loanzon, DO's NPI number?
Sheila Loanzon, DO's National Provider Identifier (NPI) is 1861674244, issued on Nov 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sheila Loanzon, DO located?
The NPPES record lists a practice address at 355 Ridge Ave, Evanston, IL, 60202. Phone: (847) 316-6229. Providers update this record themselves, so call before visiting.
How can I verify Sheila Loanzon, DO's license?
NPPES lists Illinois license number 036.126227, 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 Sheila Loanzon, DO prescribe under Medicare Part D?
In 2024, Sheila Loanzon, DO had 182 Medicare Part D claims for 108 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.