Albert Kyungwook Hahm, 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. Those with a page here are linked.

• Chester County Hospital Hospital · West Chester, PA
• Christiana Hospital Hospital · Newark, DE · listed as Christiana Care Hospital
• Hospital Of Univ Of Pennsylvania Hospital · Philadelphia, PA · listed as Hospital University of Pennsylvania
• Riddle Memorial Hospital Hospital · Media, PA
• Paoli Hospital Hospital · Paoli, PA

Colleagues at Regional Gastroenterology Associates of Lancaster, Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 251 clinicians in the practice; 12 are shown here.

• Dr. Ronald J. Brzana, MD Gastroenterology Physician · Altoona, PA
• Dr. Norman M. Callahan, DO Gastroenterology Physician · Malvern, PA
• Sharon Felices Family Nurse Practitioner · Plymouth Meeting, PA
• Kelsey Lynn Hamill, CRNP Family Nurse Practitioner · Thorndale, PA
• Dr. Radhakrishna R Kalakuntla, MD Gastroenterology Physician · Langhorne, PA
• Elena Khlobystova, FNP-BC Family Nurse Practitioner · Southampton, PA
• Ronald P Markos, MD Gastroenterology Physician · Sellersville, PA
• Aparna M Mele, MD Gastroenterology Physician · Wyomissing, PA
• Minal Patel, PA Medical Physician Assistant · Wyomissing, PA
• Mrs. Jennifer Elyse Pilchman, PA-C Medical Physician Assistant · Yardley, PA
• Mrs. Jennifer L Sankovich, PA-C Physician Assistant · Uniontown, PA
• Briana Marie Shable Physician Assistant · Altoona, PA

Other providers in West Chester

• Matthew Baichi, MD

  Individual Gastroenterology Physician · NPI 1316962160

  915 Old Fern Hill Rd Ste B-300, West Chester, PA 19380-3431 · (610) 431-3122

• Dr. David E Bobman, MD

  Individual Gastroenterology Physician · NPI 1063471712

  915 Old Fern Hill Rd Bldg B Ste 300, West Chester, PA 19380 · (610) 431-3122

• Peter James Bross, MD

  Individual Gastroenterology Physician · NPI 1295298628

  915 Old Fern Hill Rd Ste 300, West Chester, PA 19380-3431 · (610) 431-3122

• Ashish Chawla, MD

  Individual Gastroenterology Physician · NPI 1750346730

  915 Old Fern Hill Rd Bldg B Ste 300, West Chester, PA 19380 · (610) 431-3122

• Alex S Kuryan, MD

  Individual Gastroenterology Physician · NPI 1669431425

  915 Old Fern Hill Rd Bldg B Ste 300, West Chester, PA 19380 · (610) 431-3122

• Carrie N Miller Baichi, MD

  Individual Gastroenterology Physician · NPI 1629129317

  915 Old Fern Hill Rd Bldg B Ste 300, West Chester, PA 19380 · (610) 431-3122

• David R Neiblum, MD

  Individual Gastroenterology Physician · NPI 1942269782

  915 Old Fern Hill Rd Bldg B Ste 300, West Chester, PA 19380 · (610) 431-3122

• Dr. Steven Joel Nussbaum, MD

  Individual Gastroenterology Physician · NPI 1114963345

  300B Lawrence Dr, West Chester, PA 19380-4289 · (610) 836-5990