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Compare the published Medicare service mix of Loan Nguyen, MD with clinicians in the same registry specialty: Internal Medicine · Pulmonary Disease (CMS).

OKLAHOMA CITY, OK · Exact areaEdit location

2024 published service data · 54 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Eva Sawheny, M.D.

Internal Medicine (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
80%Service-mix similarityView profile →

Seyed M Alamian, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
79%Service-mix similarityView profile →

Christopher Henry

Internal Medicine (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
73%Service-mix similarityView profile →

Richard Helton, D.O.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
73%Service-mix similarityView profile →

Ralph I Kanaan, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
71%Service-mix similarityView profile →

Patrick D Jenkins, MD

Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
68%Service-mix similarityView profile →

Karen Suzanne Allen, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
67%Service-mix similarityView profile →

Shawn Keith Lee, M.D.

Internal Medicine · Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Test to examine how well the lungs exchange gases (94729)
67%Service-mix similarityView profile →

Tony Abdo, M.D

Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
66%Service-mix similarityView profile →

Ghias Nawaz Sheikh, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
65%Service-mix similarityView profile →

William Wesley Cook, M.D.

Internal Medicine · Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
65%Service-mix similarityView profile →

Azhar Ullah Khan, MD

Internal Medicine · Pulmonary Disease (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
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.