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Compare the published Medicare service mix of Ernesto Ruiz-Huidobro, MD with clinicians in the same registry specialty: Allergy/Immunology (CMS).

SOUTHLAKE, TX · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 8 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mary Brandt Hudelson, M.D.

Allergy/Immunology (CMS) · Flower Mound, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract injected into skin (95024)
87%Service-mix similarity~5.7 milesView profile →

Susamita Kesh, MD

Allergy/Immunology (CMS) · Flower Mound, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for multiple injections of allergen (95117)
  • Injection of drug or substance under skin or into muscle (96372)
65%Service-mix similarity~5.7 milesView profile →

Marie Holman Fitzgerald, MD

Specialty details in registry · Flower Mound, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for multiple injections of allergen (95117)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
61%Service-mix similarity~5.7 milesView profile →

Sherry Barnett, MD

Allergy/Immunology (CMS) · Flower Mound, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
60%Service-mix similarity~7.7 milesView profile →

Sven Kjellgren Wust, M.D.

Allergy/Immunology · Internal Medicine (CMS) · Bedford, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for single injection of allergen (95115)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
47%Service-mix similarity~8.2 milesView profile →

Nana Mireku, MD

Specialty details in registry · Flower Mound, TX

Shared published services
1 shared services · view billing descriptions
  • Professional service for multiple injections of allergen (95117)
30%Service-mix similarity~5.7 milesView profile →

Purnima Venkatesh, M.D.

Allergy/Immunology (CMS) · Bedford, TX

Shared published services
2 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)
24%Service-mix similarity~8.2 milesView 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 approximate distance 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.