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Compare the published Medicare service mix of Margaret Nadia Alexander, MD with clinicians in the same registry specialty: Gynecological Oncology (CMS).

MD · Exact areaEdit location

2024 published service data · 22 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Dwight D Im, MD

Gynecological Oncology (CMS) · Baltimore, MD

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)
  • 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)
44%Service-mix similarityView profile →

Maria D Merzouk, D.O.

Obstetrics/Gynecology (CMS) · Hagerstown, MD

Shared published services
2 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)
42%Service-mix similarityView profile →

Teresa Diaz-Montes, M.D., M.H.S.

Gynecological Oncology · Obstetrics/Gynecology (CMS) · Baltimore, MD

Shared published services
2 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)
37%Service-mix similarityView profile →

Charles R Boice, MD

Gynecological Oncology · Medical Oncology · Obstetrics/Gynecology (CMS) · Silver Spring, MD

Shared published services
1 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)
34%Service-mix similarityView profile →

Randall K Gibb, MD

Gynecological Oncology · Obstetrics/Gynecology (CMS) · Baltimore, MD

Shared published services
1 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)
32%Service-mix similarityView profile →

Hyung Suk Ryu, MD

Gynecological Oncology (CMS) · Baltimore, MD

Shared published services
2 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)
31%Service-mix similarityView profile →

Sarah Kathryn Lynam, M.D.

Obstetrics/Gynecology (CMS) · Baltimore, MD

Shared published services
1 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)
27%Service-mix similarityView profile →

Kimberly Lynn Levinson, M.D., MPH

Gynecological Oncology (CMS) · Baltimore, MD

Shared published services
1 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)
25%Service-mix similarityView profile →

Fong Liu, M.D.

Gynecological Oncology (CMS) · Towson, MD

Shared published services
1 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)
20%Service-mix similarityView profile →

James Stuart Ferriss, MD

Gynecological Oncology · Obstetrics/Gynecology (CMS) · Baltimore, MD

Shared published services
1 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)
20%Service-mix similarityView profile →

Amanda Nickles Fader, MD

Gynecological Oncology · Obstetrics/Gynecology (CMS) · Baltimore, MD

Shared published services
1 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)
19%Service-mix similarityView profile →

Dana Marie Roque, M.D.

Obstetrics/Gynecology (CMS) · Baltimore, MD

Shared published services
1 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)
18%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.