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Compare the published Medicare service mix of Nikhraj Brar, M.D. with clinicians in the same registry specialty: Pain Management · Physical Medicine And Rehabilitation (CMS).

CA · Exact areaEdit location

2024 published service data · 165 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hai-Yan Li, M.D.

Pain Management · Physical Medicine And Rehabilitation (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • 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)
70%Service-mix similarityView profile →

Joseph Lapenna, MD

Pain Management · Physical Medicine And Rehabilitation (CMS) · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • 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)
68%Service-mix similarityView profile →

James H Rhee, MD

Physical Medicine And Rehabilitation (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • 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)
67%Service-mix similarityView profile →

Ernest Jayha Oh, M.D.

Internal Medicine · Physical Medicine And Rehabilitation (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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of substance into lower spine canal using imaging guidance (62323)
67%Service-mix similarityView profile →

Danielle Perret Karimi, M.D.

Interventional Pain Management · Pain Management · Physical Medicine And Rehabilitation (CMS) · Orange, 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of substance into lower spine canal using imaging guidance (62323)
66%Service-mix similarityView profile →

Merna Naji, MD

Anesthesiology (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
65%Service-mix similarityView profile →

Hamilton Chen, MD

Pain Management · Physical Medicine And Rehabilitation (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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of substance into lower spine canal using imaging guidance (62323)
64%Service-mix similarityView profile →

Revik Vartanian, DO

Interventional Pain Management · Physical Medicine And Rehabilitation (CMS) · Arcadia, 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of substance into lower spine canal using imaging guidance (62323)
64%Service-mix similarityView profile →

Gabriel Barnard, MD

Physical Medicine And Rehabilitation (CMS) · Manhattan Beach, 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
64%Service-mix similarityView profile →

Andrew Joseph Illig, D.O.

Pain Management · Physical Medicine And Rehabilitation (CMS) · San Diego, 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of substance into lower spine canal using imaging guidance (62323)
64%Service-mix similarityView profile →

Ajay Harivadan Patel, MD

Interventional Pain Management · Physical Medicine And Rehabilitation (CMS) · Downey, CA

Shared published services
3 shared services · view billing descriptions
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • 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)
63%Service-mix similarityView profile →

Vibha Agrawal, MD

Pain Management (CMS) · Pasadena, 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of trigger points, 3 or more muscles (20553)
62%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.