NPPES file of Aug 9, 2026

Siddartha Simha, MD

Pain Medicine (Anesthesiology) Physician · Chicago, IL

Siddartha Simha, MD is a pain medicine (anesthesiology) physician with a practice address in Chicago, Illinois, and NPI 1649896531, issued on Jun 17, 2020. Check the license (Illinois 125083106, 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
1649896531
Name
Siddartha Simha
Credential
MD
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License number
125083106 IL
Self-reported in NPPES; status is on the state search
Practice location
251 E Huron St, Chicago, IL 60611
Phone
(312) 926-2000
Enumerated
Jun 17, 2020
Record last updated
Aug 4, 2024
Medicare enrollment
Enrolled (PECOS I20250528002046); accepts Medicare assignment
Medical or professional school
Oakland Univ, William Beaumont School Of Medicine, 2020
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 pain medicine (anesthesiology) physician records → All 203 in Illinois → Look up another NPI →

Also registered at 251 E Huron St

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

  1. Brian Abarbanel, MDPhysical Medicine & Rehabilitation Physician1124600291
  2. Mohamed Abazeed, MD, PHDRadiation Oncology Physician1205096609
  3. Allison AbbottCertified Registered Nurse Anesthetist1720446594
  4. Kathryn AbbottPsychiatry Physician1295537561
  5. Ramez Abdalla, M.B., B. CHNeuroradiology Physician1407410392
  6. Dena Abdelhameed, PHARM.D.Nuclear Pharmacist1073954301

Verify Siddartha Simha 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 125083106    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.

98% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024

29 Medicare Part D claims for 15 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D.

  1. Siddartha Simha29
  2. Specialty average1,750

Most prescribed

  1. Duloxetine Hcl11 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: $523.23

10 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Siddartha Simha$523.23
  2. Specialty average$3,225.41

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. Midwest Pain Management Centers,llcMunster, IN

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

Siddartha Simha among 203 pain medicine (anesthesiology) physician records in Illinois

Siddartha Simha, MD is one of 203 pain medicine (anesthesiology) physician records with a practice address in Illinois. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 91% of them.

  • NPI issued2020 · 91% of these records are older, 3% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2020 · median 2002 among the 144 with a school on file
  • Record last updated2024 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Anesthesiology) Physician providers in Illinois

There are 203 pain medicine (anesthesiology) physician records in Illinois.

All 203 in Illinois → Every provider in Chicago → Pain Medicine (Anesthesiology) Physician nationwide →

The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Honorio Benzon, MDChicago, IL 606111285600031
  2. Brian Chung, M.D.Chicago, IL 606111659584530
  3. Steven Cohen, M.D.Chicago, IL 606111578515482
  4. Jason Hennes, M.D.Chicago, IL 606111760648612
  5. Sumit Jain, MDChicago, IL 606111437507316
  6. Robert Molloy, MDChicago, IL 606111790719003
  7. Antoun Nader, MDChicago, IL 606111043240054
  8. Vraj Patel, DOChicago, IL 606111942889076

Common questions

What is Siddartha Simha, MD's NPI number?

Siddartha Simha, MD's National Provider Identifier (NPI) is 1649896531, issued on Jun 17, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Siddartha Simha, MD located?

The NPPES record lists a practice address at 251 E Huron St, Chicago, IL, 60611. Phone: (312) 926-2000. Providers update this record themselves, so call before visiting.

How can I verify Siddartha Simha, MD's license?

NPPES lists Illinois license number 125083106, 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 Siddartha Simha, MD prescribe under Medicare Part D?

In 2024, Siddartha Simha, MD had 29 Medicare Part D claims for 15 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. 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.