HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Jason D. Roos, D.O. with clinicians in the same registry specialty: Otolaryngology (CMS).

CA · Exact areaEdit location

2024 published service data · 37 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Michael Bublik, M.D.

Otolaryngology (CMS) · Glendale, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Test for allergy using allergenic extract injected into skin (95024)
  • Professional service for preparation and provision of 1 or more antigens (95165)
70%Service-mix similarityView profile →

Geoffrey B Trenkle, D.O.

Otolaryngology (CMS) · Los Angeles, CA

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)
  • Professional service for multiple injections of allergen (95117)
59%Service-mix similarityView profile →

Steven K. Lee, M.D.

Otolaryngology · Plastic And Reconstructive Surgery (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
50%Service-mix similarityView profile →

Zachary Peter Vandegriend, M.D.

Otolaryngology (CMS) · Templeton, 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)
  • 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)
49%Service-mix similarityView profile →

William Dean Anderson, MD

Otolaryngology (CMS) · Turlock, 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)
  • Ct scan of face without contrast (70486)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
49%Service-mix similarityView profile →

Kristin Egan, M.D.

Otolaryngology · Plastic And Reconstructive Surgery (CMS) · Manhattan Beach, 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)
  • 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)
48%Service-mix similarityView profile →

Grace K Austin, M.D.

Otolaryngology (CMS) · Valencia, 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)
  • 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)
48%Service-mix similarityView profile →

Anna Pei-Hua Hsu, MD

Otolaryngology · Plastic And Reconstructive Surgery (CMS) · Los Angeles, 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Comprehensive hearing and speech recognition test (92557)
47%Service-mix similarityView profile →

Alen N Cohen, M.D.

Otolaryngology · Plastic And Reconstructive Surgery (CMS) · West Hills, 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)
  • Ct scan of face without contrast (70486)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
47%Service-mix similarityView profile →

Amit Kochhar, MD

Otolaryngology (CMS) · Los Angeles, 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)
  • 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)
45%Service-mix similarityView profile →

David Lawrence Hicks, M.D.

Otolaryngology (CMS) · Fresno, 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)
  • Ct scan of face without contrast (70486)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
44%Service-mix similarityView profile →

Christina Lau Corey, MD

Otolaryngology (CMS) · Berkeley, 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)
  • 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)
43%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.