Dr. May Chammaa, MD

  • Forest Park, IL
  • Psychiatrist
NPI1083352702PAC ID9234512831
Part D claims, 2024
262
Hospital affiliations
1
Industry payments
$229
Medical groups
2
State license
1
Practice address
8311 West Roosevelt Road, Forest Park, IL 60130
Practice phone
Call (708) 771-7000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Riveredge Hospital

Hospital · Forest Park, Illinois

See all 4 affiliations

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Dr. May Chammaa is a psychiatrist in Forest Park, Illinois

Dr. Chammaa practices at Riveredge Hospital in Forest Park, Illinois, part of Universal Health Services.

Dr. Chammaa's NPI, 1083352702, was assigned on May 23, 2022. Dr. Chammaa graduated from Wayne State University School of Medicine in 2022. Dr. Chammaa holds Illinois license 125.079711.

NPI and contact details
Medicare PAC ID
9234512831
NPI enumeration date
May 23, 2022
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(708) 771-7000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
30
Medical school graduation
2022

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. May Chammaa practices at Riveredge Hospital in Forest Park, Illinois

Dr. Chammaa's primary practice is Riveredge Hospital, at 8311 West Roosevelt Road, Forest Park, IL 60130 in Cook County. The practice phone is (708) 771-7000.

  • Riveredge Hospital
    8311 West Roosevelt Road, Forest Park, IL 60130 · Cook CountyPhone(708) 771-7000

Source: Dmand AI Affiliation Data

Dr. May Chammaa is affiliated with 2 sites of care and 2 medical groups

Dr. Chammaa's primary practice is Riveredge Hospital in Forest Park, Illinois, part of Universal Health Services. The medical group on file is Riveredge Hospital. Dmand AI also links Dr. Chammaa to 1 more group practice or clinic and 1 medical group, each named with a free account. Dr. Chammaa's employer is on file too: a hospital.

See all 4 affiliations for Dr. Chammaa

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. May Chammaa's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chammaa practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Riveredge HospitalAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. May Chammaa is one of 1,527 psychiatrists in Illinois

Psychiatry is Dr. Chammaa's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Chammaa is licensed in Illinois.

Specialties and state licenses

  • Psychiatry, IllinoisPrimaryLicense 125.079711 · taxonomy 2084P0800X

Psychiatrists near Dr. Chammaa

Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. May Chammaa's patients have a median age of 18

Across all payers, Dmand AI patient panel data puts Dr. Chammaa's median patient age at 18, with 47% women.

Dr. Chammaa's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 18

Patient panel by sex, all payers

  • Women47%
  • Men53%

Source: Dmand AI Patient Panel Data

Dr. May Chammaa wrote 262 Medicare Part D claims in 2024

In 2024, Dr. Chammaa wrote 262 Medicare Part D claims for 33 patients. 94% of them were for generic drugs. CMS names the drug for 120 of them, across 7 drugs with 11 or more claims each, at $4,314 in total drug cost.

Part D claims, 2024262
Drugs named by CMS7
Total drug cost$4,314
Part D patients33

Dr. Chammaa's Part D claims by kind of drug, 2024

  • Generic246 claims94%
  • Brand-name16 claims6%

Dr. Chammaa's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Chammaa's Part D claims, 2024

  • Antipsychotics, patients 65 and over23%60 of 262 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Dr. Chammaa

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. May Chammaa takes part in Medicare

Dr. Chammaa accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. May Chammaa received $229 in industry payments from 2023 to 2024

CMS Open Payments shows 2 general payments to Dr. Chammaa from 2 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Axsome Therapeutics, Inc. paid the most, $125.

General payments to Dr. Chammaa by program year, 2023 to 2024

Companies that paid Dr. Chammaa the most, 2023 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Chammaa

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. May Chammaa graduated from Wayne State University School of Medicine

Dr. Chammaa graduated from Wayne State University School of Medicine in 2022.

  1. Medical schoolWayne State University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. May Chammaa's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. May Chammaa

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. May Chammaa's NPI number?

Dr. May Chammaa's NPI number is 1083352702. It was assigned on May 23, 2022, and it is active in the NPI Registry.

What kind of doctor is Dr. May Chammaa?

Dr. May Chammaa is a psychiatrist in Forest Park, Illinois. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. May Chammaa practice?

Dr. Chammaa practices at 8311 West Roosevelt Road, Forest Park, IL 60130. Dr. Chammaa's primary practice is Riveredge Hospital in Forest Park, Illinois, part of Universal Health Services. Dmand AI also links Dr. Chammaa to 1 group practice or clinic and 1 medical group.

What is Dr. May Chammaa's office phone number?

The practice phone on file for Dr. Chammaa is (708) 771-7000.

What is Dr. May Chammaa's medical license number?

Dr. Chammaa holds Illinois license 125.079711.

Which hospitals is Dr. May Chammaa affiliated with?

Dr. Chammaa practices at Riveredge Hospital in Forest Park, Illinois.

What medical group is Dr. May Chammaa part of?

Dr. Chammaa is linked to Riveredge Hospital. Dmand AI links Dr. Chammaa to 1 more medical group.

Does Dr. May Chammaa accept Medicare?

Yes. CMS lists Dr. Chammaa as accepting Medicare assignment.

Where did Dr. May Chammaa go to medical school?

Dr. Chammaa graduated from Wayne State University School of Medicine in 2022.

What drugs does Dr. May Chammaa prescribe most?

In 2024 Medicare Part D data, Dr. Chammaa's most prescribed drugs by claims were Quetiapine Fumarate, Aripiprazole and Olanzapine.

Has Dr. May Chammaa received payments from drug or device companies?

CMS Open Payments shows $229 in general payments to Dr. Chammaa from 2 companies from 2023 to 2024. The largest total came from Axsome Therapeutics, Inc.

How long has Dr. May Chammaa been practicing?

Dr. Chammaa graduated from medical school in 2022, 4 years ago.

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