Dr. Calvin William Parker III, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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.

• Carroll Hospital Center Hospital · Westminster, MD · listed as Carroll Hospital Center, Inc
• Northwest Hospital Center Hospital · Randallstown, MD · listed as Northwest Hospital Center, Inc
• Sinai Hospital Of Baltimore Hospital · Baltimore, MD

Colleagues at Sinai Hospital of Baltimore, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 372 clinicians in the practice; 12 are shown here.

• Abigail Shirah Chamdi Family Nurse Practitioner · Baltimore, MD
• Dr. Brent Dembo, MD Interventional Cardiology Physician · York, PA
• Dr. Samantha Jill Feldman, MD Ophthalmology Physician · Nashville, TN
• Amaris James Surgical Physician Assistant · Baltimore, MD
• Amy Elizabeth Jones, PA-C Physician Assistant · Baltimore, MD
• Mariam Keramati Physical Medicine & Rehabilitation Physician · Baltimore, MD
• Dr. Denise Lally-Cassady, MD Physical Medicine & Rehabilitation Physician · Baltimore, MD
• Mrs. Aurora A Maria, PA-C Physician Assistant · Baltimore, MD
• Sarah Jane McQuide, PSYD Clinical Psychologist · Baltimore, MD
• Robin Metcalfe-Klaw, MD Obstetrics & Gynecology Physician · Newark, DE
• Dr. Lingxiang Ye, MD Surgery Physician · Baltimore, MD
• Mr. Felix Yelovich, PA-C Hospitalist Physician · Baltimore, MD

Other providers in Baltimore

• Dr. Jessica Hyunji Park, MD

  Individual Internal Medicine Physician · NPI 1184244113

  4940 Eastern Ave, Baltimore, MD 21224-2735 · (410) 550-5018

• Joan Jinsong Park, MD

  Individual Internal Medicine Physician · NPI 1174186043

  600 N Wolfe St, Baltimore, MD 21287-0005 · (410) 955-5000

• Dr. Suyi Park, MD

  Individual Internal Medicine Physician · NPI 1932177904

  700 Washington Blvd, Baltimore, MD 21230-2350 · (410) 539-3360

• Ann Marie Parker, MD

  Individual Internal Medicine Physician · NPI 1194984369

  600 N Wolfe St Bldg 5TH, Baltimore, MD 21287-0005 · (410) 955-3467

• Dr. Donna Lynn Parker, MD

  Individual Internal Medicine Physician · NPI 1023032232

  22 S Greene St, Baltimore, MD 21201-1544 · (410) 706-7476

• Dr. James Ward Parshall, MD

  Individual Internal Medicine Physician · NPI 1194794503

  5601 Loch Raven Blvd Russell Morgan Ste 412, Baltimore, MD 21239 · (443) 444-4720

• Apostolos Paspaltzis, MD

  Individual Internal Medicine Physician · NPI 1861092025

  900 S Caton Ave, Baltimore, MD 21229-5201 · (667) 234-3120

• Martin I Passen, MD

  Individual Internal Medicine Physician · NPI 1093708877

  307 S Eaton St Ste A, Baltimore, MD 21224-2525 · (410) 337-8446