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Compare the published Medicare service mix of Stephanie I Haddad, M.D. with clinicians in the same registry specialty: Emergency Medicine.

DAYTON, NJ · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 69 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John P.f. Lopez, MD

Emergency Medicine · New Brunswick, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
56%Service-mix similarity~8.1 milesView profile →

Min Cha, M.D.

Emergency Medicine · Franklin Park, NJ

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)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)
51%Service-mix similarity~4.3 milesView profile →

Andrew O'connor, MD

Emergency Medicine · New Brunswick, NJ

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)
  • Automated urinalysis test (81003)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
51%Service-mix similarity~8.1 milesView profile →

Au Phan, M.D.

Emergency Medicine · Franklin Park, NJ

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)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)
48%Service-mix similarity~4.3 milesView profile →

Stephen Jay Harrison, DO

Emergency Medicine · Princeton, NJ

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)
  • Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
43%Service-mix similarity~6.9 milesView profile →

Richard J Schaller, MD

Emergency Medicine · Old Bridge, NJ

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)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
43%Service-mix similarity~9.9 milesView profile →

Mervin Griffin, MD

Emergency Medicine · New Brunswick, NJ

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)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
33%Service-mix similarity~8.1 milesView profile →

Adaeze Anneliese Iwu, MD, MBA

Emergency Medicine · East Brunswick, NJ

Shared published services
3 shared services · view billing descriptions
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
32%Service-mix similarity~6.4 milesView profile →

Adaorah Jacinta Iboko, MD

Emergency Medicine · New Brunswick, NJ

Shared published services
1 shared services · view billing descriptions
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
12%Service-mix similarity~8.1 milesView profile →

Christine Anne Collins

Emergency Medicine · New Brunswick, NJ

Shared published services
1 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
9%Service-mix similarity~8.1 milesView 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 approximate distance 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.