Donica Liu Baker, MD, FACR

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

• St Lukes Hospital Hospital · Chesterfield, MO

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Medical Specialists of St Lukes LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

• Anam Ahmad, MD Rheumatology Physician · Chesterfield, MO
• Mr. Hassan A Ahmad, MD Allergy & Immunology Physician · Chesterfield, MO
• MS. Martha Mary Brooks, ANP Adult Health Nurse Practitioner · Saint Louis, MO
• Dr. Pablo Daniel Dayer, MD Nephrology Physician · Chesterfield, MO
• Dr. Matthew L German, MD Infectious Disease Physician · Chesterfield, MO
• Anibal Goncalves Melo, MD Nephrology Physician · Chesterfield, MO
• Nirmol Mary Philip, MD Internal Medicine Physician · Chesterfield, MO
• Dr. Thomas R Pohlman, MD Nephrology Physician · Chesterfield, MO
• Sadaf Sheikh, MD Nephrology Physician · Chesterfield, MO
• Nicholas Simpson Family Nurse Practitioner · St. Louis, MO
• Syed Ali Umair Zaidi Internal Medicine Physician · Brooklyn, NY

Other providers in Chesterfield

• Anam Ahmad, MD

  Individual Rheumatology Physician · NPI 1639739485

  222 S Woods Mill Rd Ste 760, Chesterfield, MO 63017-3625 · (314) 205-6050

• Keith A Bernstein, MD

  Individual Rheumatology Physician · NPI 1447273727

  224 S Woods Mill Rd Ste 500 South, Chesterfield, MO 63017 · (314) 878-6260

• Dr. Faye C. Cohen, MD

  Individual Rheumatology Physician · NPI 1306808548

  226 S Woods Mill Rd Ste 43, Chesterfield, MO 63017-3663 · (314) 205-6444

• Dr. James H. Esther, MD

  Individual Rheumatology Physician · NPI 1609838309

  226 S Woods Mill Rd Ste 43, Chesterfield, MO 63017-3663 · (314) 205-6444

• Linda M Hunt, MD

  Individual Rheumatology Physician · NPI 1265455547

  224 S Woods Mill Rd Ste 270, Chesterfield, MO 63017-3513 · (636) 685-7709