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Compare the published Medicare service mix of Mark Galperin with clinicians in the same registry specialty: Anesthesiology · Interventional Pain Management (CMS).

BROOKLYN, NY · Exact areaEdit location

2024 published service data · 16 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mathew Lefkowitz, MD

Pain Management (CMS) · Brooklyn, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
69%Service-mix similarityView profile →

Jason Kreiner, M.D.

Anesthesiology · Pain Management (CMS) · Brooklyn, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
66%Service-mix similarityView profile →

David Ian Rosenblum, MD

Anesthesiology · Pain Management (CMS) · Brooklyn, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
58%Service-mix similarityView profile →

Alan Zats, DO

Anesthesiology · Pain Management (CMS) · Brooklyn, NY

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)
  • Aspiration and/or injection of fluid from large joint (20610)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
51%Service-mix similarityView profile →

Gary Scott Schwartz, M.D.

Anesthesiology · Pain Management (CMS) · Brooklyn, NY

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)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level (64484)
49%Service-mix similarityView profile →

Jonathan Martin Hirsch, MD

Anesthesiology · Pain Management (CMS) · Brooklyn, NY

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)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level (64484)
45%Service-mix similarityView profile →

Mehrdad Hedayatnia, MD

Anesthesiology · Pain Management (CMS) · Brooklyn, NY

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)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
  • Aspiration and/or injection of fluid from large joint (20610)
44%Service-mix similarityView profile →

Una Sibirceva, MD

Hospice/Palliative Care · Internal Medicine · Pain Management (CMS) · Brooklyn, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
42%Service-mix similarityView profile →

Ryan T Gualtier, M.D.

Pain Management (CMS) · Brooklyn, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
40%Service-mix similarityView profile →

Marivi Macatangay De Jesus, M.D.

Pain Management (CMS) · Brooklyn, NY

Shared published services
2 shared services · view billing descriptions
  • Testing for presence of drug, read by direct observation (80305)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
30%Service-mix similarityView profile →

Igor Ostrovsky, M.D

Pain Management (CMS) · Brooklyn, NY

Shared published services
1 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)
28%Service-mix similarityView profile →

Joseph Kim, M.D.

Specialty details in registry · Brooklyn, NY

Shared published services
1 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)
26%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.