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Compare the published Medicare service mix of Michael Thomas Ragen, M.D. with clinicians in the same registry specialty: Ophthalmology · Plastic And Reconstructive Surgery (CMS).

CA · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kala Swamynathan, M.D.

Ophthalmology (CMS) · Stockton, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
52%Service-mix similarityView profile →

Amin Ashrafzadeh, MD

Ophthalmology (CMS) · Modesto, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Imaging of front third of eye using a special microscope (92286)
  • Ultrasound scan of cornea to determine thickness (76514)
46%Service-mix similarityView profile →

John C Shin, M.D.

Ophthalmology (CMS) · San Rafael, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
45%Service-mix similarityView profile →

Lan Tuyet Nguyen, M.D.

Ophthalmology (CMS) · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Photography of the retina (92250)
44%Service-mix similarityView profile →

Sheila L Wright-Scott, M.D.

Ophthalmology (CMS) · Lancaster, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
44%Service-mix similarityView profile →

Dan B Tran, M.D.

Ophthalmology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
44%Service-mix similarityView profile →

Daniel Lee, MD

Internal Medicine · Ophthalmology (CMS) · Turlock, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Imaging of front third of eye using a special microscope (92286)
  • Ultrasound scan of cornea to determine thickness (76514)
44%Service-mix similarityView profile →

Randal Tanh Pham, M.D.

Ophthalmology (CMS) · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
43%Service-mix similarityView profile →

Jane Alison Semel, M.D.

Ophthalmology (CMS) · El Segundo, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
43%Service-mix similarityView profile →

Albert Baktanian, M.D.

Ophthalmology (CMS) · Glendale, 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 high level of medical decision making, if using time, 40 minutes or more (99215)
  • Photography of the retina (92250)
42%Service-mix similarityView profile →

Harold L Schick, MD

Ophthalmology (CMS) · Merced, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Photography of the retina (92250)
41%Service-mix similarityView profile →

John Kelly Schofield, D.O.

Ophthalmology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Photography of the retina (92250)
41%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.