NPPES file of Aug 9, 2026

Joaquin J. Estrada, MD

Colon & Rectal Surgery Physician · Chicago, IL

Joaquin J. Estrada, MD is a colon & rectal surgery physician with a practice address in Chicago, Illinois, and NPI 1629126651, issued on Jan 8, 2007. Check the license (Illinois 036-125251, 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
1629126651
Name
Joaquin J. Estrada
Credential
MD
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License numbers
036-125251 IL
036.125251 IL
A91251 CA
Self-reported in NPPES; status is on the state search
Practice location
900 W Nelson St, Chicago, IL 60657
Phone
(773) 296-7095
Enumerated
Jan 8, 2007
Record last updated
Mar 4, 2026
Fax
(773) 296-9420
Medicare enrollment
Enrolled (PECOS I20110811000059); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 2003
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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Also registered at 900 W Nelson St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nora Al-Sibaie, PHARMDPharmacist1134694326
  2. Jennifer Babiarz, PAMedical Physician Assistant1457456105
  3. Ana BedonClinical Nurse Specialist1952778318
  4. Nivan ChowattukunnelHematology & Oncology Physician1629537816
  5. Ifunanya Chris-UkahPhysician Assistant1669105250
  6. Sonia ChristianHematology & Oncology Physician1891038204

Verify Joaquin J. Estrada 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 036-125251
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.3 times the Medicare Part D claims of the average colon & rectal surgery physician in 2024

438 Medicare Part D claims for 249 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 45 claims were for opioids.

  1. Joaquin Estrada438
  2. Specialty average192

Most prescribed

  1. Sod Sulf-Potass Sulf-Mag Sulf110 claims
  2. Hydrocortisone86 claims
  3. Tramadol Hcl34 claims
  4. Diphenoxylate-Atropine33 claims
  5. Metronidazole27 claims
  6. Peg 3350-Electrolyte25 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: $172.15

3 payments; by number, the most common kind was food and beverage; the largest payer was Medical Device Business Services, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joaquin Estrada$172.15
  2. Specialty average$3,468.16

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationBuffalo Grove, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joaquin J. Estrada among 97 colon & rectal surgery physician records in Illinois

Joaquin J. Estrada, MD is one of 97 colon & rectal surgery physician records with a practice address in Illinois. 86% 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 39% of them.

  • NPI issued2007 · 39% of these records are older, 53% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2003 · median 2006 among the 73 with a school on file
  • Record last updated2026 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Colon & Rectal Surgery Physician providers in Illinois

There are 97 colon & rectal surgery physician records in Illinois.

The 8 colon & rectal surgery physician records with the nearest ZIP codes

  1. Jessica ChinChicago, IL 606571164051165
  2. Jared Emolo, MDChicago, IL 606571073927745
  3. Francisco Quinteros, M.D.Chicago, IL 606541427206689
  4. Marco Bertucci Zoccali, MDChicago, IL 606371033537659
  5. Lisa Cannon, M.D.Chicago, IL 606371841450640
  6. Miles Grunvald, MDChicago, IL 606371942704606
  7. Roger HurstChicago, IL 606371962415539
  8. Neil HymanChicago, IL 606371700811981

Common questions

What is Joaquin J. Estrada, MD's NPI number?

Joaquin J. Estrada, MD's National Provider Identifier (NPI) is 1629126651, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Joaquin J. Estrada, MD located?

The NPPES record lists a practice address at 900 W Nelson St, Chicago, IL, 60657. Phone: (773) 296-7095. Providers update this record themselves, so call before visiting.

How can I verify Joaquin J. Estrada, MD's license?

NPPES lists Illinois license number 036-125251, 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 Joaquin J. Estrada, MD prescribe under Medicare Part D?

In 2024, Joaquin J. Estrada, MD had 438 Medicare Part D claims for 249 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.