Ather Ali, MD
Hospitalist Physician · Crystal Lake, IL
Ather Ali, MD is a hospitalist physician with a practice address in Crystal Lake, Illinois, and NPI 1518308246, issued on Jul 10, 2013. Check the license (Illinois 036144860, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ather Ali
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 036144860 IL
66068 WI
Self-reported in NPPES; status is on the state search - Practice location
- 875 Route 31, Crystal Lake, IL 60014
- Phone
- (779) 220-5500
- Enumerated
- Jul 10, 2013
- Record last updated
- Jul 10, 2024
- Medicare enrollment
- Enrolled (PECOS I20200109001931); accepts Medicare assignment
- Entity
- Type 1 · individual
Verify Ather Ali 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 036144860Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average hospitalist physician in 2024
42 Medicare Part D claims, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium13 claims
- Potassium Chloride12 claims
- Furosemide11 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.
Bills Medicare through one group practice
- Mercy Health System CorporationCrystal Lake, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hospitalist Physician providers in Illinois
There are 1,535 hospitalist physician records in Illinois.
Other hospitalist physician records in Illinois
- Hasan Abad, D.O.Chicago, IL1356872006
- Pamela Abadi, D.O.Winfield, IL1588820179
- Misha Abbasi, MDChicago, IL1770111635
- Hossam Abdel Aziz, MDWinfield, IL1114558145
- Eman Abdel-Latief, M.D.Evanston, IL1508229949
- Ashraf Abdeljaber, M.DNormal, IL1023472636
- Maysa Abdul Hussain, MDChicago, IL1245417070
- Shabreen Abdul Sharief, MDHuntley, IL1992025118
- Eyad Abdulrazzak, MDEvanston, IL1710592589
- Syed Abdur-Rahman, MDDekalb, IL1538658729
Common questions
What is Ather Ali, MD's NPI number?
Ather Ali, MD's National Provider Identifier (NPI) is 1518308246, issued on Jul 10, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Ather Ali, MD located?
The NPPES record lists a practice address at 875 Route 31, Crystal Lake, IL, 60014. Phone: (779) 220-5500. Providers update this record themselves, so call before visiting.
How can I verify Ather Ali, MD's license?
NPPES lists Illinois license number 036144860, 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 Ather Ali, MD prescribe under Medicare Part D?
In 2024, Ather Ali, MD had 42 Medicare Part D claims; the average among hospitalist physician prescribers was 521. 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.