npidexNPI registry + Medicare data

AMY CHANG, MD

Infectious Disease Physician · STANFORD, CA

Individual Active NPI 1962848960

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
2024147524$231,257$65,379$51,926
2023163519$220,211$74,301$58,609
2022138454$152,794$56,829$44,551

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes173$133$106
99215Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more67$187$148
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's67$19$15
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes65$194$155
G2212Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or44$36$29
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more34$136$103
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes28$89$71

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Infectious Disease Physician207RI0200X✓A142120CA
Internal Medicine Physician207R00000XA142120CA
Internal Medicine Physician207R00000X142120CA

Medicare eligibility

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

Other Infectious Disease Physician providers in California

See all Infectious Disease Physician providers in California →

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