Dr. Peter H Ahn, MD

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.

• Medstar Georgetown University Hospital Hospital · Washington, DC
• Medstar Washington Hospital Center Hospital · Washington, DC · listed as Washington Hospital Center Corporation

Colleagues at Medstar Medical Group II LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3717 clinicians in the practice; 12 are shown here.

• Nelly Arnouk, MD Internal Medicine Physician · Baltimore, MD
• Sarika Garga, PHD Psychologist · Gainesville, VA
• Mark Hasenauer, MD Adult Reconstructive Orthopaedic Surgery Physician · Baltimore, MD
• Mrs. Jennifer Horton, FNP Family Nurse Practitioner · San Jose, CA
• Jigna P Kane, CRNP Adult Health Nurse Practitioner · Baltimore, MD
• Maithri Kondapaka, MD Internal Medicine Physician · Baltimore, MD
• William Young Park, MD Student in an Organized Health Care Education/Training Program · Washington, DC
• Dr. Katherine Power, MD Physical Medicine & Rehabilitation Physician · Washington, DC
• Kadeem Ymervyn Javier Richardson, MD Anesthesiology Physician · Greenwood Village, CO
• Michael Jareed Sherman Nephrology Physician · Washington, DC
• Gissel Sonnenbrot, FNP-BC Family Nurse Practitioner · Olney, MD
• Dr. Anusha Vittal, MBBS Student in an Organized Health Care Education/Training Program · Baltimore, MD

Other providers in Philadelphia

• Dr. Manuj Agarwal, MD

  Individual Radiation Oncology Physician · NPI 1316262363

  333 Cottman Ave, Philadelphia, PA 19111-2434 · (215) 728-2581

• Michelle Alonso-Basanta, MD

  Individual Radiation Oncology Physician · NPI 1831393800

  3400 Civic Center Blvd Concourse Level, Philadelphia, PA 19104-5127 · (215) 662-2428

• Dr. Pramila R. Anne, MD

  Individual Radiation Oncology Physician · NPI 1982626321

  111 S 11th St Bodine Ctr, Philadelphia, PA 19107-4824 · (215) 955-6702

• Dr. Alyssa Marie Asaro, MD

  Individual Radiation Oncology Physician · NPI 1477355725

  333 Cottman Ave, Philadelphia, PA 19111-2497 · (888) 369-2427

• Vladimir Avkshtol, MD

  Individual Radiation Oncology Physician · NPI 1972921062

  333 Cottman Ave Fox Chase Cancer Ctr, Philadelphia, PA 19111-2434 · (215) 728-3016