NPPES file of Aug 9, 2026

Otto R. Garcia Montenegro, M.D.

Internal Medicine Physician · Chicago, IL

Otto R. Garcia Montenegro, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1790773992, issued on Oct 11, 2005. Check the license (Illinois 036098564, 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
1790773992
Name
Otto R. Garcia Montenegro
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036098564 IL
Self-reported in NPPES; status is on the state search
Practice location
2004 N Pulaski RD, Chicago, IL 60639
Phone
(773) 772-8876
Enumerated
Oct 11, 2005
Record last updated
Jul 21, 2022
Fax
(773) 252-3091
Medicaid ID
036098564 IL
Medicare enrollment
Enrolled (PECOS I20040903000089); accepts Medicare assignment
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 2004 N Pulaski RD

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

  1. Najat George, M.D.Family Medicine Physician1649581471
  2. Martha Kachmaryk, MDOphthalmology Physician1528110392
  3. Mercy Kolenchery, APNFamily Nurse Practitioner1902140072
  4. Hisham Sadek, MDPsychiatry Physician1619941614
  5. Rasheed Sharifa, PHARMACISTPharmacist1891018412
  6. Abdulghany Tabbara, M.D.Obstetrics & Gynecology Physician1477570299

Verify Otto R. Garcia Montenegro 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 036098564
    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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80% fewer Medicare Part D claims than the average internal medicine physician in 2024

646 Medicare Part D claims for 72 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Otto Garcia Montenegro646
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium38 claims
  2. Metformin Hcl34 claims
  3. Gabapentin30 claims
  4. Albuterol Sulfate Hfa26 claims
  5. Celecoxib24 claims
  6. Amlodipine Besylate23 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: $122.02

6 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Otto Garcia Montenegro$122.02
  2. Specialty average$1,303.06

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. Urgent Medical Center SCChicago, IL

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

Otto R. Garcia Montenegro among 7,238 internal medicine physician records in Illinois

Otto R. Garcia Montenegro, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1988 · median 2003 among the 3,580 with a school on file
  • Record last updated2022 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Reginald Okagbue, MDChicago, IL 606391235309352
  2. Omar Oliveros, M.D.Chicago, IL 606391538542337
  3. Jeremy Patel, M.D.Chicago, IL 606391477902484
  4. Walter Plasencia, M.D.Chicago, IL 606391497715908
  5. Joseph Pundy, MDChicago, IL 606391639110745
  6. Noel Rubio, M.D.Chicago, IL 606391922036797
  7. Elenita Rubio, M.D.Chicago, IL 606391962514984
  8. Mohamad Alzein, MDChicago, IL 606381902900319

Common questions

What is Otto R. Garcia Montenegro, M.D.'s NPI number?

Otto R. Garcia Montenegro, M.D.'s National Provider Identifier (NPI) is 1790773992, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Otto R. Garcia Montenegro, M.D. located?

The NPPES record lists a practice address at 2004 N Pulaski RD, Chicago, IL, 60639. Phone: (773) 772-8876. Providers update this record themselves, so call before visiting.

How can I verify Otto R. Garcia Montenegro, M.D.'s license?

NPPES lists Illinois license number 036098564, 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 Otto R. Garcia Montenegro, M.D. prescribe under Medicare Part D?

In 2024, Otto R. Garcia Montenegro, M.D. had 646 Medicare Part D claims for 72 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.