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Compare the published Medicare service mix of Mehrdad Michael Mahdad, M.D. with clinicians in the same registry specialty: Neurology.

FOUNTAIN VALLEY, CA · Exact areaEdit location

2024 published service data · 9 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Tim Tien Lai, M.D.

Neurology · Fountain Valley, CA

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Needle measurement of electrical activity in arm or leg muscles, complete study (95886)
58%Service-mix similarityView profile →

Deepmala Nandanwar, M.D.

Neurology · Fountain Valley, CA

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
53%Service-mix similarityView profile →

Frank Xing

Neurology · Fountain Valley, CA

Shared published services
2 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)
  • Needle measurement of electrical activity in arm or leg muscles, complete study (95886)
52%Service-mix similarityView profile →

Kong Truong, M.D.

Neurology · Fountain Valley, CA

Shared published services
2 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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
48%Service-mix similarityView profile →

Duke An Michael Phan, MD

Neurology · Fountain Valley, CA

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)
  • Needle measurement of electrical activity in arm or leg muscles, complete study (95886)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
46%Service-mix similarityView profile →

Nancy Thien Vu, M.D.

Neurology · Fountain Valley, CA

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Measurement of brain wave activity (eeg), awake and drowsy (95816)
42%Service-mix similarityView profile →

Abdullah Ibish, MD

Neurology · Fountain Valley, CA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Measurement of brain wave activity (eeg), awake and asleep (95819)
32%Service-mix similarityView profile →

Daniel Dung Truong, M.D.

Neurology · Fountain Valley, CA

Shared published services
2 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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
30%Service-mix similarityView profile →

Scott L Shoemaker, MD

Neurology · Fountain Valley, CA

Shared published services
2 shared services · view billing descriptions
  • Needle measurement of electrical activity in arm or leg muscles, complete study (95886)
  • 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 →
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.