Colonoscopy clinicians in Raleigh, North Carolina

CMS lists 105 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 Raleigh, North Carolina (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Mitchell Mah'Moud, MD	221	91%
Christopher Schwarz, MD	202	89%
Sanjay Jagannath, MD	178	86%
Andrew Lange, MD	168	84%
Karla Nieves Borrero, MD	163	83%
Neeraj Sachdeva, MD	155	81%
Raja Vadlamudi, MD	138	77%
Indira Reddy, MD	135	76%
Iris Vance, MD	119	71%
Michael Battaglino, MD	118	71%
Sharif Chowdhury, MD	108	67%
Juliana Miller, MD	102	65%
Julia Hughes, MD	99	64%
Mohammad Esmadi, MD	97	63%
Kenneth Kohagen, MD	91	60%
Juan Herrera, MD	89	59%
Justin Crocker, MD	84	57%
Tal Hazan, MD	82	56%
Jorge Obando, MD	82	56%
Farah Hussain, MD	80	55%
Jeremy Glissen Brown, MD	79	54%
Ami Patel, MD	79	54%
Amy Barto, MD	78	54%
Colm O'Loughlin, MD	77	53%
Luis Vazquez-Montesino, MD	77	53%
Adeyemi Lawal, MD	76	53%
Ashish Shah, MD	76	53%
Darin Dufault, MD	74	52%
Naveen Narahari, MD	74	52%
Angela Carollo, MD	71	50%
Danielle Hoo Fatt, MD	71	50%
Ruth Mokeba Ekangaki, MD	68	49%
Daniel Wild, MD	68	49%
Benjamin Lloyd	67	48%
Rig Patel, MD	67	48%
Hirendra Doshi, MD	66	47%
Anand Dwivedi	65	47%
Michael Feiler, MD	63	46%
David Tendler, MD	60	44%
Nidhi Malhotra, MD	59	44%
Karen Chachu	58	43%
Annapoorani Veerappan, MD	58	43%
Robin Zachariah, MD	57	42%
Mohsen Pourmorteza, MD	56	42%
Rebecca Burbridge, MD	55	41%
Troy Pleasant, MD	55	41%
Murtaza Parekh, MD	54	41%
Melissa Teitelman, MD	54	41%
Nicole Jawitz, MD	53	40%
Tanvir Haque, MD	52	40%
Marc Herschelman, DO	51	39%
Jane Onken, MD	51	39%
Boris Cvetkovski, MD	50	38%
Richard Wood, MD	50	38%
Alpesh Patel, MD	49	38%
Michael McKay, MD	48	37%
Annmarie Kieber-Emmons, MD	47	36%
Darshan Kothari, MD	47	36%
Alexander Reddy, MD	46	36%
Benjamin Robey, MD	46	36%
Dina Ahmad, MD	45	35%
Sahar Ghassemi, MD	44	34%
Bobby Jacob, MD	44	34%
Paul Oh, MD	44	34%
Neil Kheterpal, DO	41	32%
Omobonike Oloruntoba, MD	40	32%
Nannaya Jampala, MD	39	31%
Angela Hira, DO	38	30%
Anil Tumbapura, MD	36	29%
Sara Ali, MD	34	28%
Christie Blanton, MD	34	28%
Sonia Abichandani, MD	33	27%
Narasimha Gollol Raju, MD	33	27%
Shannon Scholl, MD	33	27%
Amreen Dinani, MD	30	25%
Alicia Muratore, MD	30	25%
Michael Dougherty, MD	29	25%
John Haydek, MD	28	24%
Rajendraprasad Makam, MD	27	23%
Julius Wilder, MD	27	23%
Alyson Johnson, MD	26	23%
Mahfuzul Haque, MD	25	22%
Carla Brady, MD	23	21%
David Leiman	23	21%
Sarah McGill, MD	23	21%
Dhvani Shah, MD	23	21%
Talisha Ramchal, MD	18	18%
Kimberly Darlington, MD	17	17%
Athidi Earasi, MD	17	17%
Carl Foulks, MD	17	17%
Paul Jowell, MD	17	17%
Matthew Kappus, MD	17	17%
Giselle Mahoro, MD	17	17%
Lisa Jones, MD	16	16%
Katherine Scholand, MD	13	14%
Nancy Yang, MD	13	14%
Malcolm Branch, MD	12	14%
Jatin Roper, MD	12	14%
Catherine Bartholomew, MD	1-10	13% or below
Beth Floyd, MD	1-10	13% or below
Jacqueline Henson, MD	1-10	13% or below
Christopher McGowan, MD	1-10	13% or below
Brahma Natarajan, MD	1-10	13% or below
Dionne Rebello, MD	1-10	13% or below
Deepa Reddy, 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.

Reported in previous releases

CMS does not report a colonoscopy volume for these clinicians in the October 2, 2026 release. Their pages show figures from earlier releases.

Maria Segovia, MD Last reported August 18, 2026

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).