NPPES file of Aug 9, 2026

Gail Lynn Patrick, MD

Family Medicine Physician · Chicago, IL

Gail Lynn Patrick, MD is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1538360623, issued on May 29, 2007. Check the license (Illinois 336-078118, 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
1538360623
Name
Gail Lynn Patrick
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
336-078118 IL
Self-reported in NPPES; status is on the state search
Practice location
2501 W. Peterson, Chicago, IL 60059
Phone
(773) 761-0300
Enumerated
May 29, 2007
Record last updated
Jul 29, 2026
Fax
(773) 878-1073
Medicare enrollment
Enrolled (PECOS I20071102000663); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 2004
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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Verify Gail Lynn Patrick 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 336-078118
    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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74% fewer Medicare Part D claims than the average family medicine physician in 2024

926 Medicare Part D claims for 71 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Gail Patrick926
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium112 claims
  2. Metformin Hcl80 claims
  3. Amlodipine Besylate70 claims
  4. Jardiance32 claims
  5. Enalapril Maleate31 claims
  6. Losartan Potassium27 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: $124.25

1 payment: 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.

  1. Gail Patrick$124.25
  2. Specialty average$902.55

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. Asian Human Services Family Health Center, Inc.Chicago, IL

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

Gail Lynn Patrick among 6,215 family medicine physician records in Illinois

Gail Lynn Patrick, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 41% of them.

  • NPI issued2007 · 41% of these records are older, 50% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2004 · median 2006 among the 3,714 with a school on file
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

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.

The 8 family medicine physician records with the nearest ZIP codes

  1. Varsha Chandramouli, M.D.Mundelein, IL 600601225159536
  2. David Ericson, M.D.Mundelein, IL 600601417098690
  3. Bela Glantsman, M.D.Mundelein, IL 600601750347803
  4. Mikhail Khodarkovskiy, M.D.Mundelein, IL 600601215919196
  5. John Medved, MDMundelein, IL 600601104120534
  6. Timothy Poland, MDMundelein, IL 600601124069455
  7. Jessica Schwartz, DOMundelein, IL 600601629692835
  8. Priya Gambhir, M.D.Vernon Hills, IL 600611255565990

Common questions

What is Gail Lynn Patrick, MD's NPI number?

Gail Lynn Patrick, MD's National Provider Identifier (NPI) is 1538360623, issued on May 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gail Lynn Patrick, MD located?

The NPPES record lists a practice address at 2501 W. Peterson, Chicago, IL, 60059. Phone: (773) 761-0300. Providers update this record themselves, so call before visiting.

How can I verify Gail Lynn Patrick, MD's license?

NPPES lists Illinois license number 336-078118, 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 Gail Lynn Patrick, MD prescribe under Medicare Part D?

In 2024, Gail Lynn Patrick, MD had 926 Medicare Part D claims for 71 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.