NPPES file of Aug 9, 2026

Scott Joseph Siglin, M.D.

Internal Medicine Physician · Chicago, IL

Scott Joseph Siglin, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1497060982, issued on Aug 10, 2010. Check the license (Illinois 125.057935, 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
1497060982
Name
Scott Joseph Siglin
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
125.057935 IL
Self-reported in NPPES; status is on the state search
Practice location
5841 S Maryland Ave, Chicago, IL 60637
Phone
(773) 702-6840
Enumerated
Aug 10, 2010
Record last updated
Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160808001347); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →

Also registered at 5841 S Maryland Ave

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

  1. Ma. Theresa Abaring, CRNACertified Registered Nurse Anesthetist1962647586
  2. Rouzbeh AbbasgholizadehRetina Specialist (Ophthalmology) Physician1881510030
  3. Jehad Abdalla, MDSleep Medicine (Internal Medicine) Physician1053898684
  4. Sara Abdelaziz, MDEndocrinology, Diabetes & Metabolism Physician1598258089
  5. Noor Abdelrahman, PA-CPhysician Assistant1851012413
  6. Unknown Abdul Hanan, MDBlood Banking & Transfusion Medicine Physician1750022240

Verify Scott Joseph Siglin 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 125.057935    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

74% fewer Medicare Part D claims than the average internal medicine physician in 2024

836 Medicare Part D claims for 367 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Scott Siglin836
  2. Specialty average3,176

Most prescribed

  1. Omeprazole338 claims
  2. Peg 3350-Electrolyte182 claims
  3. Linzess54 claims
  4. Sod Sulf-Potass Sulf-Mag Sulf34 claims
  5. Budesonide Dr18 claims
  6. Hydrocortisone15 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: $121.48

1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. 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. Scott Siglin$121.48
  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. Advocate Health And Hospitals CorporationPark Ridge, IL

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

Scott Joseph Siglin among 7,238 internal medicine physician records in Illinois

Scott Joseph Siglin, 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 2010, is newer than 51% of them.

  • NPI issued2010 · 51% of these records are older, 47% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2010 · median 2003 among the 3,580 with a school on file
  • Record last updated2021 · 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.

All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jennifer AngelesChicago, IL 606371114945276
  2. Sameer Badlani, MDChicago, IL 606371699795302
  3. Kristine Bordenave, M.D.Chicago, IL 606371811009368
  4. Andrew DavisChicago, IL 606371275642167
  5. Hatim HassanChicago, IL 606371417970385
  6. Keiki Hinami, M.D.Chicago, IL 606371437136785
  7. David Liebovitz, MDChicago, IL 606371972564748
  8. Thomas Mason, M.D.Chicago, IL 606371730114505

Common questions

What is Scott Joseph Siglin, M.D.'s NPI number?

Scott Joseph Siglin, M.D.'s National Provider Identifier (NPI) is 1497060982, issued on Aug 10, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Scott Joseph Siglin, M.D. located?

The NPPES record lists a practice address at 5841 S Maryland Ave, Chicago, IL, 60637. Phone: (773) 702-6840. Providers update this record themselves, so call before visiting.

How can I verify Scott Joseph Siglin, M.D.'s license?

NPPES lists Illinois license number 125.057935, 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 Scott Joseph Siglin, M.D. prescribe under Medicare Part D?

In 2024, Scott Joseph Siglin, M.D. had 836 Medicare Part D claims for 367 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.