NPPES file of Aug 9, 2026

Gregory David Lopez, MD

Orthopaedic Surgery of the Spine Physician · Chicago, IL

Gregory David Lopez, MD is an orthopaedic surgery of the spine physician with a practice address in Chicago, Illinois, and NPI 1366754699, issued on Jul 1, 2010. Check the license (Illinois 036137855, 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
1366754699
Name
Gregory David Lopez
Credential
MD
Primary taxonomy
Orthopaedic Surgery of the Spine Physician 207XS0117X
License number
036137855 IL
Self-reported in NPPES; status is on the state search
Practice location
1611 W Harrison St, Chicago, IL 60612
Phone
(708) 236-2600
Enumerated
Jul 1, 2010
Record last updated
Jan 9, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160804002402); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At San Antonio, 2010
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 1611 W Harrison St

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

  1. Jakob Ackermann, MDSports Medicine (Orthopaedic Surgery) Physician1467340364
  2. Taylor Agate, PA-CPhysician Assistant1871196477
  3. Samer Al-Khudari, M.D.Otolaryngology Physician1699942177
  4. Jeremy Alland, MDSports Medicine (Internal Medicine) Physician1861755035
  5. Howard An, MDOrthopaedic Surgery of the Spine Physician1255310157
  6. Gunnar Andersson, MDOrthopaedic Surgery Physician1154309110

Verify Gregory David Lopez 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 036137855
    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

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4% more Medicare Part D claims than the average orthopaedic surgery of the spine physician in 2024

398 Medicare Part D claims for 180 beneficiaries, against an average of 381 among the 1,714 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gregory Lopez398
  2. Specialty average381

Most prescribed

  1. Tizanidine Hcl145 claims
  2. Methylprednisolone84 claims
  3. Meloxicam44 claims
  4. Diclofenac Sodium40 claims
  5. Cefadroxil28 claims
  6. Gabapentin24 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: $1,364.93

16 payments; by number, the most common kind was food and beverage; the largest payer was Globus Medical, Inc. The 1,726 providers of this specialty with any payment received $34,071.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Lopez$1,365
  2. Specialty average$34,072

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

Bills Medicare through 3 group practices

  1. Dynamic Physical Therapy, Inc.Oak Park, IL
  2. Midwest Orthopaedics AT Rush LLCChicago, IL
  3. Orthomidwest, PLLCChicago, IL

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

Gregory David Lopez among 68 orthopaedic surgery of the spine physician records in Illinois

Gregory David Lopez, MD is one of 68 orthopaedic surgery of the spine physician records with a practice address in Illinois. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 72% of them.

  • NPI issued2010 · 72% of these records are older, 24% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2010 · median 2001 among the 47 with a school on file
  • Record last updated2017 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0117X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery of the Spine Physician providers in Illinois

There are 68 orthopaedic surgery of the spine physician records in Illinois.

The 8 orthopaedic surgery of the spine physician records with the nearest ZIP codes

  1. Howard An, MDChicago, IL 606121255310157
  2. Matthew Colman, MDChicago, IL 606121205002607
  3. Christopher Dewald, M.D.Chicago, IL 606121952334948
  4. Edward Goldberg, M.D.Chicago, IL 606121407835176
  5. Aditya Mazmudar, MD, MBAChicago, IL 606121619341526
  6. Neil Mohile, MDChicago, IL 606121447711742
  7. Karan Patel, MDChicago, IL 606121821443284
  8. Frank Phillips, M.D.Chicago, IL 606121013996701

Common questions

What is Gregory David Lopez, MD's NPI number?

Gregory David Lopez, MD's National Provider Identifier (NPI) is 1366754699, issued on Jul 1, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Gregory David Lopez, MD located?

The NPPES record lists a practice address at 1611 W Harrison St, Chicago, IL, 60612. Phone: (708) 236-2600. Providers update this record themselves, so call before visiting.

How can I verify Gregory David Lopez, MD's license?

NPPES lists Illinois license number 036137855, 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 Gregory David Lopez, MD prescribe under Medicare Part D?

In 2024, Gregory David Lopez, MD had 398 Medicare Part D claims for 180 beneficiaries; the average among orthopaedic surgery of the spine physician prescribers was 381. 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.