npidexNPI registry + Medicare data

JAY GUAN, M.D.

Gastroenterology Physician · LOS ANGELES, CA

Individual Active NPI 1295122497

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
20248275,314$2,991,735$535,621$412,675
20239183,292$2,522,440$477,215$373,818
20226411,731$952,577$272,551$209,921

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
99439Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month1,280$51$40
99490Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month735$66$51
G2211Visit 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's620$17$13
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more564$135$98
45380Biopsy of large bowel using a flexible endoscope229$32$26
45385Removal of polyps or growths of large bowel using an endoscope with mechanical snare223$206$168
43239Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope206$27$22
99204New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more124$176$127
43251Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare112$151$120
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more92$97$70
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes88$121$96
91110Imaging of digestive tract done from the inside of the digestive tract80$833$660

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Gastroenterology Physician207RG0100X✓A144843CA
Student in an Organized Health Care Education/Training Program390200000X—CA

Medicare eligibility

Part B
Yes
DME
Yes
Home health
Yes
Power mobility
Yes
Hospice
Yes

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Source: NPPES (public domain) and CMS Medicare Physician & Other Practitioners data. Not affiliated with CMS, NPPES, or any government agency.