Athar Baig, MD
Internal Medicine Physician · Ottawa, IL
Athar Baig, MD is an internal medicine physician with a practice address in Ottawa, Illinois, and NPI 1649852492, issued on Apr 22, 2021. Check the license (Illinois 036.175113, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Athar Baig
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036.175113 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1100 E Norris Dr, Ottawa, IL 61350
- Phone
- (815) 433-3100
- Enumerated
- Apr 22, 2021
- Record last updated
- Jun 12, 2025
- Medicare enrollment
- Enrolled (PECOS I20250918000577); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 1100 E Norris Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Drew Anderson, LCSWClinical Social Worker1427125376
- Ania AniolPsychiatry Physician1689170003
- Janell Armstrong, PTPhysical Therapist1992059851
- Valerie Arwood, LCSWClinical Social Worker1659809580
- Hailey Backes, SLPSpeech-Language Pathologist1811629538
- Myles Berg, MPTPhysical Therapist1205180627
Verify Athar Baig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.175113Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
34 Medicare Part D claims for 19 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through 3 group practices
- 24 ON Physicians PCOttawa, IL
- Chicago Physician Services PCChicago, IL
- Cook Physician Services, P.C.Hoffman Estates, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Athar Baig among 7,238 internal medicine physician records in Illinois
Athar Baig, MD 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 2021, is newer than 74% of them.
- NPI issued2021 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2014 · median 2003 among the 3,580 with a school on file
- Record last updated2025 · 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).
8 internal medicine physician records list a practice address in Ottawa
They are 8 of the 334 NPPES records with a practice address in Ottawa, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Ottawa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Peter Borek, MDOttawa, IL 613501962176081
- Cynthia Cabalfin, M.D.Ottawa, IL 613501497708382
- Raul Guerrero, MDOttawa, IL 613501053307660
- Robert Maguire, MDOttawa, IL 613501174571673
- David Manigold, MDOttawa, IL 613501346299641
- Neil Pandya, M.D.Ottawa, IL 613501124403050
- Raihan Sayeed, MDOttawa, IL 613501053998526
- Ramon Inciong, MDOglesby, IL 613481891707998
Common questions
What is Athar Baig, MD's NPI number?
Athar Baig, MD's National Provider Identifier (NPI) is 1649852492, issued on Apr 22, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Athar Baig, MD located?
The NPPES record lists a practice address at 1100 E Norris Dr, Ottawa, IL, 61350. Phone: (815) 433-3100. Providers update this record themselves, so call before visiting.
How can I verify Athar Baig, MD's license?
NPPES lists Illinois license number 036.175113, 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 Athar Baig, MD prescribe under Medicare Part D?
In 2024, Athar Baig, MD had 34 Medicare Part D claims for 19 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.