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Compare the published Medicare service mix of Stuart Ross Chipkin, M.D. with clinicians in the same registry specialty: Endocrinology (CMS).

MA · Exact areaEdit location

2024 published service data · 352 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Matthew Jonathan Spitzer, MD

Endocrinology · Internal Medicine (CMS) · Greenfield, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Vitamin d-3 level (82306)
88%Service-mix similarityView profile →

Ameya Hodarkar, MD

Endocrinology (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Vitamin d-3 level (82306)
78%Service-mix similarityView profile →

Justin Grady Matrisciano, MD

Endocrinology (CMS) · Dartmouth, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
73%Service-mix similarityView profile →

Swetha Lahari Kommareddy, M.D.

Endocrinology · Internal Medicine (CMS) · Worcester, MA

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)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Vitamin d-3 level (82306)
72%Service-mix similarityView profile →

Leslie S. Eldeiry, MD

Endocrinology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Vitamin d-3 level (82306)
71%Service-mix similarityView profile →

Holly Pessa Kilim, M.D.

Endocrinology · Internal Medicine (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Vitamin d-3 level (82306)
70%Service-mix similarityView profile →

Samar A Choubah, M.D.

Endocrinology (CMS) · Brockton, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Vitamin d-3 level (82306)
69%Service-mix similarityView profile →

Alaa Kubbar, MD

Endocrinology (CMS) · Fall River, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Vitamin d-3 level (82306)
69%Service-mix similarityView profile →

Anna Kozupa, M.D.

Endocrinology (CMS) · Dartmouth, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
68%Service-mix similarityView profile →

German Velasco, M.D.

Endocrinology (CMS) · Middleboro, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
68%Service-mix similarityView profile →

Catherine Jin Tang

Endocrinology · Internal Medicine (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Vitamin d-3 level (82306)
66%Service-mix similarityView profile →

Jennifer C Braimon, MD

Endocrinology (CMS) · Middleton, MA

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)
  • Vitamin d-3 level (82306)
  • Hemoglobin a1c level (83036)
65%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.