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Compare the published Medicare service mix of Tiffany Elkin Perry, M.D. with clinicians in the same registry specialty: Obstetrics/Gynecology (CMS).

CA · Exact areaEdit location

2024 published service data · 39 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Emmanuel Nwabufo Mba, M.D.

Obstetrics/Gynecology (CMS) · Inglewood, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
89%Service-mix similarityView profile →

Elizabeth Gabriele Moy, M.D.

Obstetrics/Gynecology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
83%Service-mix similarityView profile →

Joie Russo, M.D.

Obstetrics/Gynecology (CMS) · Encino, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
79%Service-mix similarityView profile →

Franklin Martin Johnson, D.O.

Obstetrics/Gynecology (CMS) · Upland, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
77%Service-mix similarityView profile →

Joan Hazel B Calinisan, MD

Obstetrics/Gynecology (CMS) · Murrieta, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
74%Service-mix similarityView profile →

Dorothy A Shoup, M.D.

Obstetrics/Gynecology (CMS) · Redwood City, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
74%Service-mix similarityView profile →

Kelleen Michelle Bosch, DO

Obstetrics/Gynecology (CMS) · Fresno, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
73%Service-mix similarityView profile →

Cheryl Harris Geer, D.O.

Obstetrics/Gynecology (CMS) · Camarillo, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
72%Service-mix similarityView profile →

Secily N. Bason-Mitchell, M.D.

Obstetrics/Gynecology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
70%Service-mix similarityView profile →

Dena D Tilley, N.P.

Specialty details in registry · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
70%Service-mix similarityView profile →

Robert A Grossman, MD

Obstetrics/Gynecology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • 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)
69%Service-mix similarityView profile →

Iheanacho Emeruwa, M.D.

Internal Medicine · Obstetrics/Gynecology (CMS) · Riverside, 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)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
69%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.