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Compare the published Medicare service mix of Laura T Phan, MD with clinicians in the same registry specialty: Ophthalmology (CMS).

CA · Exact areaEdit location

2024 published service data · 41 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Sangeeta C Logani, M.D.

Ophthalmology (CMS) · Encino, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient problem focused exam of visual system (92012)
  • Closure of tear duct opening using plug (68761)
51%Service-mix similarityView profile →

Ronald Mancini, MD

Ophthalmology (CMS) · Calabasas, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
50%Service-mix similarityView profile →

Angela Faye Perry, M.D.

Ophthalmology (CMS) · Murrieta, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of content of eyes (92285)
48%Service-mix similarityView profile →

Paul T Stallman, MD

Ophthalmology · Plastic And Reconstructive Surgery (CMS) · Pismo Beach, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
47%Service-mix similarityView profile →

Justin Hellman, MD

Ophthalmology (CMS) · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient problem focused exam of visual system (92012)
  • Photography of content of eyes (92285)
46%Service-mix similarityView profile →

Omar Ozgur, M.D.

Ophthalmology (CMS) · Mission Viejo, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Exam of visual field with intermediate testing (92082)
  • Photography of content of eyes (92285)
43%Service-mix similarityView profile →

Sandy Xinyu Zhang-Nunes, M.D.

Specialty details in registry · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Exam of visual field with intermediate testing (92082)
  • Photography of content of eyes (92285)
41%Service-mix similarityView profile →

Nathan Pirakitikulr, MD, PHD

Ophthalmology · Plastic And Reconstructive Surgery (CMS) · Solana Beach, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Exam of visual field with intermediate testing (92082)
  • Photography of content of eyes (92285)
40%Service-mix similarityView profile →

Harry Marshak, M.D.

Ophthalmology · Plastic And Reconstructive Surgery (CMS) · Palm Desert, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Photography of content of eyes (92285)
  • Insertion of probe into nasal tear duct (68810)
39%Service-mix similarityView profile →

Nicolas Gabriel Biro, MD

Ophthalmology (CMS) · Santa Clarita, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient problem focused exam of visual system (92012)
  • Photography of content of eyes (92285)
39%Service-mix similarityView profile →

Kelsey Andrea Roelofs, MD

Specialty details in registry · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of content of eyes (92285)
38%Service-mix similarityView profile →

Carlo Roberto Bernardino, MD

Ophthalmology (CMS) · Salinas, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
36%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.