Colonoscopy clinicians in Lancaster, Pennsylvania

CMS lists 49 clinicians with a primary specialty of Gastroenterology, Internal Medicine, Family Practice, or General Practice who have billed Medicare for at least one colonoscopy and practice in Lancaster, Pennsylvania (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Rupal Kothari, DO	290	95%
Marc Hopkins, MD	276	95%
Michael Wolfson, MD	260	94%
Robert Frankel, MD	254	94%
Norman Callahan, DO	249	93%
Austin Hwang, MD	244	93%
Ryan Urbas, DO	205	89%
William Huntington, DO	197	88%
Anil Sharma, MD	196	88%
Nicole Albert, DO	179	86%
Robert Stokes, MD	164	83%
Dale Whitebloom, DO	140	77%
Robert Bailey, DO	138	77%
Paul Allegretti, DO	136	76%
Justin Harberson, MD	128	74%
Ketan Kulkarni, MD	119	71%
Evan Shelby, MD	115	70%
Charles Calabrese, DO	110	68%
Melissa Morgan, DO	110	68%
John Betteridge, MD	106	66%
Christopher Farrell, DO	105	66%
Marc Happe, DO	105	66%
Anan Said, MD	102	65%
Scott Douglas, MD	100	64%
Janson Jacob, MD	100	64%
David Kerstetter, MD	99	64%
Ameet Parikh, MD	99	64%
Christopher Shih, MD	97	63%
David Smith, MD	97	63%
John Horwhat, MD	94	62%
Joseph Chapman, MD	93	61%
Kaci Christian, MD	90	60%
Ronald Brzana, MD	86	58%
Rajesh Panchwagh, DO	85	58%
Clifford Lomboy, MD	84	57%
Rajih Alkhafaji, MD	83	57%
Mitul Patel, MD	83	57%
Mehul Lalani, MD	79	54%
Amanda Long, MD	75	52%
Lisa Yoo, DO	75	52%
Edmond Bou Assaf, MD	74	52%
Alison Platt, DO	74	52%
Andrew Lee, MD	72	51%
Daniel Connell, MD	67	48%
Richard Panicco, DO	41	32%
Mark Johnston, MD	38	30%
Philip Joson, MD	32	27%
Frederick Ruthardt, MD	32	27%
Steven Solga, MD	27	23%

Sorted by the number of colonoscopies billed to Medicare, highest first, not by quality or skill.

Understanding CMS Data

CMS's "Colonoscopy" category combines specific billing codes for colonoscopy to calculate the number of times each clinician billed Medicare for a "Colonoscopy." These include screening colonoscopy, diagnostic colonoscopy, and colonoscopy with biopsy or polyp removal. CMS's list also includes flexible sigmoidoscopy and laparoscopic appendectomy, so a clinician's count may include those procedures. CMS counts one procedure per patient per day, so a colonoscopy that included both a biopsy and a polyp removal counts once. CMS reports only procedures that clinicians billed to Original Medicare and Medicare Advantage. Therefore, CMS's procedure volume data does not include procedures that clinicians may have performed on patients who have other health care coverage (e.g., commercial insurance, self-pay, or the VA). Billing variation and coding errors can also affect CMS's data. Therefore, the number of procedures that CMS reports for a clinician may be higher or lower than the actual number of colonoscopies a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of Gastroenterology, Internal Medicine, Family Practice, or General Practice (as reported to Medicare) are presented.

Source: Centers for Medicare & Medicaid Services (October 2, 2026 release).