Joel Dennis Feinstein, M.D. / Similar service patterns A DIFFERENT WAY TO EXPLORE Similar work. Compare the published Medicare service mix of Joel Dennis Feinstein, M.D. with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).
LOS ANGELES, CA · Exact area Edit location
2024 published service data · 72 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Internal Medicine (CMS) · Los Angeles, CA
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) 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 a high level of medical decision making, if using time, 60 minutes or more (99205) Gastroenterology (CMS) · Los Angeles, CA
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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Diagnostic exam of large bowel using a flexible endoscope (45378) Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · Los Angeles, CA
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) 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 a high level of medical decision making, if using time, 60 minutes or more (99205) Specialty details in registry · Los Angeles, CA
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000) Obstetrics/Gynecology (CMS) · Los Angeles, CA
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) 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 moderate level of decision making, if using time, 30 minutes or more (99214) Cardiovascular Disease (Cardiology) (CMS) · Los Angeles, CA
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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000) Internal Medicine (CMS) · Los Angeles, CA
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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000) Gastroenterology · Internal Medicine (CMS) · Los Angeles, CA
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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239) Endocrinology · Internal Medicine (CMS) · Los Angeles, CA
Shared published services 2 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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Gastroenterology · Internal Medicine (CMS) · Los Angeles, CA
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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239) Gastroenterology · Internal Medicine (CMS) · Los Angeles, CA
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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239) Obstetrics/Gynecology (CMS) · Los Angeles, CA
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) 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 a high level of medical decision making, if using time, 60 minutes or more (99205) 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.