May Chammaa, MD
Psychiatry Physician · Chicago, IL
May Chammaa, MD is a psychiatry physician with a practice address in Chicago, Illinois, and NPI 1083352702, issued on May 23, 2022. Check the license (Illinois 125.079711, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- May Chammaa
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 125.079711 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1 E Superior St Ste 306, Chicago, IL 60611
- Phone
- (312) 754-9404
- Enumerated
- May 23, 2022
- Record last updated
- Jun 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20250904004065); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2022
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,147 in Illinois → Look up another NPI →
Also registered at 1 E Superior St Ste 306
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bhargavi Ancha, MDPsychiatry Physician1881223576
- Patrick ArantStudent in an Organized Health Care Education/Training Program1235865395
- Abigail AronProfessional Counselor1235059668
- Lindsey Ashamalla, PSY.D.Counselor1811456726
- Judith Bitzer, LCPCCounselor1548483977
- Grace BlakePhysician Assistant1124971395
Verify May Chammaa 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 125.079711Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average psychiatry physician in 2024
262 Medicare Part D claims for 33 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Quetiapine Fumarate24 claims
- Aripiprazole19 claims
- Olanzapine16 claims
- Venlafaxine Hcl Er16 claims
- Fluoxetine Hcl15 claims
- Lamotrigine15 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.
Industry payments in 2024: $124.65
1 payment: food and beverage; the largest payer was Axsome Therapeutics, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Riveredge Hospital IncForest Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
May Chammaa among 2,147 psychiatry physician records in Illinois
May Chammaa, MD is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 88% of them.
- NPI issued2022 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated2022 · median 2004 among the 877 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
841 psychiatry physician records list a practice address in Chicago
They are 841 of the 63,379 NPPES records with a practice address in Chicago, and 2,147 psychiatry physician records in Illinois.
All 2,147 in Illinois → Every provider in Chicago → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Ghada Albeheary, MDChicago, IL 606111477534576
- Joan Anzia, MDChicago, IL 606111528039658
- Lydia Breen, MDChicago, IL 606111518926203
- Kenneth Cohen, M.D.Chicago, IL 606111952366551
- Pedro Dago, MDChicago, IL 606111689637639
- John Gerber, M.D.Chicago, IL 606111447216544
- Larry Goldman, M.D.Chicago, IL 606111851356752
- Jonathon Goldman, M.D.Chicago, IL 606111427013374
Common questions
What is May Chammaa, MD's NPI number?
May Chammaa, MD's National Provider Identifier (NPI) is 1083352702, issued on May 23, 2022. An NPI identifies a provider in billing; it is not a license.
Where is May Chammaa, MD located?
The NPPES record lists a practice address at 1 E Superior St Ste 306, Chicago, IL, 60611. Phone: (312) 754-9404. Providers update this record themselves, so call before visiting.
How can I verify May Chammaa, MD's license?
NPPES lists Illinois license number 125.079711, 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 May Chammaa, MD prescribe under Medicare Part D?
In 2024, May Chammaa, MD had 262 Medicare Part D claims for 33 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.