NPPES file of Aug 9, 2026

Diala Alatassi, MD

Obesity Medicine (Internal Medicine) Physician · Elmhurst, IL

Diala Alatassi, MD is an obesity medicine (internal medicine) physician with a practice address in Elmhurst, Illinois, and NPI 1215467147, issued on Jun 13, 2017. Check the license (Illinois 036153540, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215467147
Name
Diala Alatassi
Credential
MD
Primary taxonomy
Obesity Medicine (Internal Medicine) Physician 207RB0002X
License number
036153540 IL
Self-reported in NPPES; status is on the state search
Practice location
172 E Schiller St, Elmhurst, IL 60126
Phone
(331) 221-9001
Enumerated
Jun 13, 2017
Record last updated
Aug 23, 2024
Medicare enrollment
Enrolled (PECOS I20220606002154); 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.
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Also registered at 172 E Schiller St

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

  1. Moni Abraham, MDInternal Medicine Physician1275729436
  2. Aysha Ahmed, PA-CPhysician Assistant1053880138
  3. Besma Aly, MDFamily Medicine Physician1356087175
  4. Asma Ayub, M.D.Family Medicine Physician1063413326
  5. Timothy Bresnahan, MDInternal Medicine Physician1265538433
  6. Ronald Cheff, MDInternal Medicine Physician1326144643

Verify Diala Alatassi 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 036153540
    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

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6% fewer Medicare Part D claims than the average obesity medicine (internal medicine) physician in 2024

696 Medicare Part D claims for 137 beneficiaries, against an average of 742 among the 106 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Diala Alatassi696
  2. Specialty average742

Most prescribed

  1. Atorvastatin Calcium62 claims
  2. Metformin Hcl Er38 claims
  3. Amlodipine Besylate31 claims
  4. Levothyroxine Sodium31 claims
  5. Losartan Potassium26 claims
  6. Mounjaro23 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): 91.4 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.

  1. Qualityout of 100 · 30% of the final score82.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $295.48

5 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 80 providers of this specialty with any payment received $6,310.67 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diala Alatassi$295.48
  2. Specialty average$6,310.67

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. Endeavor Health Medical GroupEvanston, IL

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

Obesity Medicine (Internal Medicine) Physician providers in Illinois

There are 8 obesity medicine (internal medicine) physician records in Illinois.

The 7 obesity medicine (internal medicine) physician records with the nearest ZIP codes

  1. Omar Shamsi, MDElmhurst, IL 601261053599233
  2. Monika Cohen, M.D.Arlington Heights, IL 600041528046224
  3. Diana Plata, M.D.Arlington Heights, IL 600041619329380
  4. Neha Shah, M.D.Naperville, IL 605401861710733
  5. Jeffrey Pua, M.D.Westmont, IL 605591689831778
  6. Anthony Millard, MDChicago, IL 606061316336167
  7. Sung Chou, M.D.Loves Park, IL 611111023352838

Common questions

What is Diala Alatassi, MD's NPI number?

Diala Alatassi, MD's National Provider Identifier (NPI) is 1215467147, issued on Jun 13, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Diala Alatassi, MD located?

The NPPES record lists a practice address at 172 E Schiller St, Elmhurst, IL, 60126. Phone: (331) 221-9001. Providers update this record themselves, so call before visiting.

How can I verify Diala Alatassi, MD's license?

NPPES lists Illinois license number 036153540, 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 Diala Alatassi, MD prescribe under Medicare Part D?

In 2024, Diala Alatassi, MD had 696 Medicare Part D claims for 137 beneficiaries; the average among obesity medicine (internal medicine) physician prescribers was 742. Part D covers Medicare prescriptions only.

What is Diala Alatassi, MD's MIPS final score?

The 2023 MIPS final score is 91.4 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.