Colonoscopy clinicians in Falls Church, Virginia

CMS lists 44 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 Falls Church, Virginia (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Michael McCabe, MD	262	94%
Nicholas Szary, MD	209	90%
Marc Georgi, MD	174	85%
Anand Nath, MD	169	84%
Ivan Harnden, MD	149	80%
Won Kyoo Cho, MD	138	77%
Rufaat Mando, MD	121	71%
Tobin Naidorf, MD	109	67%
Kunwardeep Sohal, MD	100	64%
Ahmed Hamed, MD	99	64%
Jason Heckert, MD	97	63%
Firew Wubiee, MD	95	62%
Nitin Sardana, MD	91	60%
Waseem Aziz, MD	89	59%
Ahmed Maher, MD	84	57%
Khalid Alkimawi, MD	76	53%
Jean Donet Mostacero, MD	73	51%
Neha Nigam, MD	71	50%
Assad Munis, DO	67	48%
Anita Kumar, MD	66	48%
Rebecca Matro, MD	66	48%
Ali Khan, MD	59	44%
Ricardo Cabello, MD	49	38%
Emad Abuhamda, MD	44	35%
Michal Bartel, MD	41	33%
Ghazaleh Aram, MD	33	28%
Rupa Shah, MD	26	23%
Veronica Nguyen, MD	25	23%
Christopher Coe, MD	23	22%
Kishan Patel, MD	23	22%
Firas Al-Kawas, MD	17	17%
Mitchell Kang, DO	13	15%
Ankita Nagirimadugu, MD	12	14%
Amit Mehta, MD	11	13%
Ali Fazel, MD	1-10	13% or below
Sonia Gosain, MD	1-10	13% or below
Janet Han, MD	1-10	13% or below
Amy Lin, MD	1-10	13% or below
Jesse Liu, MD	1-10	13% or below
Neena Malik, MD	1-10	13% or below
Han Ton-That, MD	1-10	13% or below
Abdul Wahab, MD	1-10	13% or below
Clemence White, DO	1-10	13% or below
Eric Wollins, MD	1-10	13% or below

Sorted by the number of colonoscopies billed to Medicare, highest first, not by quality or skill. CMS suppresses counts between 1 and 10 to protect patient privacy and publishes the range instead.

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 (August 18, 2026 release).