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Compare the published Medicare service mix of Sam Seunghae Ahn, MD with clinicians in the same registry specialty: General Surgery · Vascular Surgery (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 35 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Allan W. Tulloch, M.D.

Vascular Surgery (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel (37253)
  • Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes (99153)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
51%Service-mix similarityView profile →

Neil P Reddy

Vascular Surgery (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel (37253)
  • Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes (99153)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
51%Service-mix similarityView profile →

Johnathon Curtis Rollo, MD

Vascular Surgery (CMS) · Los Angeles, CA

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)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Ultrasonic guidance for blood vessel access (76937)
46%Service-mix similarityView profile →

William Ming Lee, M.D.

General Surgery · Vascular Surgery (CMS) · Los Angeles, CA

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)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
40%Service-mix similarityView profile →

Steven M. Farley, MD

Vascular Surgery (CMS) · Los Angeles, CA

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)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Complete ultrasound study of arm and leg arteries (93923)
39%Service-mix similarityView profile →

Christian Jesus Ochoa, MD

General Surgery · Vascular Surgery (CMS) · Los Angeles, CA

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)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
38%Service-mix similarityView profile →

Spencer Leland Brown, M.D.

General Surgery · Vascular Surgery (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel (37253)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Ultrasonic guidance for blood vessel access (76937)
36%Service-mix similarityView profile →

Miguel Francisco Manzur, M.D.

General Surgery · Vascular Surgery (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel (37253)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Ultrasound of leg arteries or artery grafts (93925)
36%Service-mix similarityView profile →

Karen Woo

Vascular Surgery (CMS) · Los Angeles, CA

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)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
34%Service-mix similarityView profile →

Peter F Lawrence, MD

Vascular Surgery (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of leg arteries or artery grafts (93925)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts (93978)
33%Service-mix similarityView profile →

Juan Carlos Jimenez, MD

Vascular Surgery (CMS) · Los Angeles, CA

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)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
32%Service-mix similarityView profile →

Wesley S Moore, MD

Vascular Surgery (CMS) · Los Angeles, CA

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
32%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.