William Enrique Otero, M.D.
Family Medicine Physician · Chicago, IL
William Enrique Otero, M.D. is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1588776884, issued on Aug 31, 2006. Check the license (Illinois 036 102552, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William Enrique Otero
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036 102552 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2363 N California Ave, Chicago, IL 60647
- Phone
- (773) 772-4900
- Enumerated
- Aug 31, 2006
- Record last updated
- Mar 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (773) 772-0298
- Medicaid ID
- 036102552 IL
- Medicare enrollment
- Enrolled (PECOS I20090803000690); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 2363 N California Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sandra Emeric Otero, PSY.D.Psychologist1700998028
Verify William Enrique Otero 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 102552Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average family medicine physician in 2024
4,318 Medicare Part D claims for 279 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 47 claims were for opioids.
Most prescribed
- Metformin Hcl225 claims
- Atorvastatin Calcium186 claims
- Simvastatin158 claims
- Rosuvastatin Calcium153 claims
- Metoprolol Succinate137 claims
- Lisinopril131 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.
Industry payments in 2024: $340.09
10 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
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.
All 1,593 in Chicago → All 6,215 in Illinois → Every provider in Chicago →
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- Muhammad AbbasAlton, IL1588341556
- Syed AbbasWest Dundee, IL1972733103
- Stefanie AbbottMaywood, IL1861137457
- Roann Abdeladl, MDEvanston, IL1437087103
- Ahmed Abdelkader, MDChicago, IL1659104230
- Guy Abderholden, MDAntioch, IL1902899792
Common questions
What is William Enrique Otero, M.D.'s NPI number?
William Enrique Otero, M.D.'s National Provider Identifier (NPI) is 1588776884, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Enrique Otero, M.D. located?
The NPPES record lists a practice address at 2363 N California Ave, Chicago, IL, 60647. Phone: (773) 772-4900. Providers update this record themselves, so call before visiting.
How can I verify William Enrique Otero, M.D.'s license?
NPPES lists Illinois license number 036 102552, 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 William Enrique Otero, M.D. prescribe under Medicare Part D?
In 2024, William Enrique Otero, M.D. had 4,318 Medicare Part D claims for 279 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.