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Compare the published Medicare service mix of Anna Leigh Christine Ornopia Ursales, MD with clinicians in the same registry specialty: Infectious Disease · Internal Medicine (CMS).

LOMA LINDA, CA · Exact areaEdit location

2024 published service data · 10 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Sandy Chang

Infectious Disease · Internal Medicine (CMS) · Loma Linda, 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
58%Service-mix similarityView profile →

Jennifer A Veltman, M.D.

Infectious Disease · Internal Medicine (CMS) · Loma Linda, 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
53%Service-mix similarityView profile →

Richelle Lynn Guerrero-Wooley, M.D

Infectious Disease · Internal Medicine (CMS) · Loma Linda, 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
53%Service-mix similarityView profile →

Eugene Liu, MD

Infectious Disease · Internal Medicine (CMS) · Loma Linda, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
50%Service-mix similarityView profile →

Daniel K Rogstad, MD

Infectious Disease · Internal Medicine (CMS) · Loma Linda, 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
46%Service-mix similarityView profile →

Kristin Anne Carr, MD

Infectious Disease · Internal Medicine (CMS) · Loma Linda, CA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
45%Service-mix similarityView profile →

Jonathan Pham, MD

Infectious Disease · Internal Medicine (CMS) · Loma Linda, 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
45%Service-mix similarityView profile →

Jonathan Thomas Arcobello, M.D.

Cardiovascular Disease (Cardiology) · General Surgery · Infectious Disease · Internal Medicine (CMS) · Loma Linda, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
38%Service-mix similarityView profile →

Zayn Endo, MD

Internal Medicine (CMS) · Loma Linda, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
34%Service-mix similarityView profile →

Victor Ming Wang, DO

Infectious Disease (CMS) · Loma Linda, CA

Shared published services
1 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)
23%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.