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Similar work.
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Compare the published Medicare service mix of Willscott Edward Naugler, M.D. with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).

PORTLAND, OR · Exact areaEdit location

2024 published service data · 87 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Manida Wungjiranirun, M.D.

Gastroenterology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
66%Service-mix similarityView profile →

Richard W Brandes, MD

Gastroenterology · Internal Medicine (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
62%Service-mix similarityView profile →

Melissa Paige Hershman, M.D.

Gastroenterology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
62%Service-mix similarityView profile →

William M Kelley, M.D.

Gastroenterology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
60%Service-mix similarityView profile →

Mark Anthony Sofia, M.D.

Gastroenterology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
60%Service-mix similarityView profile →

Debbie F Cheng, MD

Gastroenterology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
60%Service-mix similarityView profile →

Katherine Rollins Black, MD

Gastroenterology · Internal Medicine (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
60%Service-mix similarityView profile →

Tien Sy Dong, M.D., PH.D.

Gastroenterology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
59%Service-mix similarityView profile →

Matthew Andres Smith, MD

Gastroenterology · Internal Medicine (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
59%Service-mix similarityView profile →

Nir Modiano, MD, PHD

Specialty details in registry · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
58%Service-mix similarityView profile →

Dekey Yangzom Lhewa, MD

Gastroenterology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Telephone medical discussion with physician, 21-30 minutes (99443)
58%Service-mix similarityView profile →

Margot Louise Herman, MD

Gastroenterology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
55%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.