Collette Williams Kalal, MD
Internal Medicine Physician · Maywood, IL
Collette Williams Kalal, MD is an internal medicine physician with a practice address in Maywood, Illinois, and NPI 1376905760, issued on Mar 24, 2016. Check the license (Illinois 036148860, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Collette Williams Kalal
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036148860 IL
125.068316 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2160 S 1St Ave, Maywood, IL 60153
- Phone
- (708) 216-5368
- Enumerated
- Mar 24, 2016
- Record last updated
- Aug 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (708) 216-3375
- Medicare enrollment
- Enrolled (PECOS I20210823002706); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2160 S 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Zaid Abdelsattar, MD, MSCThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1760793293
- Gerges Abdelsayed, MBBCH BAODiagnostic Radiology Physician1942902606
Verify Collette Williams Kalal 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 036148860Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,430 Medicare Part D claims for 280 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 91 claims were for opioids.
Most prescribed
- Atorvastatin Calcium187 claims
- Amlodipine Besylate122 claims
- Levothyroxine Sodium96 claims
- Losartan Potassium83 claims
- Metoprolol Succinate77 claims
- Gabapentin60 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.
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Collette Williams Kalal among 7,238 internal medicine physician records in Illinois
Collette Williams Kalal, 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 2016, is newer than 63% of them.
- NPI issued2016 · 63% of these records are older, 36% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2016 · 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).
257 internal medicine physician records list a practice address in Maywood
They are 257 of the 2,572 NPPES records with a practice address in Maywood, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Maywood → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Boblick, MDMaywood, IL 601531932173267
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- Bradley Clifford, MDMaywood, IL 601531912971227
- Josephine Dlugopolski-Gach, MDMaywood, IL 601531679543151
- Kevin Embach, M.D.Maywood, IL 601531437151974
- Maureen Fearon, MDMaywood, IL 601531144294463
- Elizabeth Frye, MDMaywood, IL 601531295709509
- Sam Hung, MDMaywood, IL 601531750352753
Common questions
What is Collette Williams Kalal, MD's NPI number?
Collette Williams Kalal, MD's National Provider Identifier (NPI) is 1376905760, issued on Mar 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Collette Williams Kalal, MD located?
The NPPES record lists a practice address at 2160 S 1St Ave, Maywood, IL, 60153. Phone: (708) 216-5368. Providers update this record themselves, so call before visiting.
How can I verify Collette Williams Kalal, MD's license?
NPPES lists Illinois license number 036148860, 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 Collette Williams Kalal, MD prescribe under Medicare Part D?
In 2024, Collette Williams Kalal, MD had 2,430 Medicare Part D claims for 280 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Collette Williams Kalal, MD's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.