npidexNPI registry + Medicare data

OSCAR CHIEN, M.D.

Geriatric Medicine (Internal Medicine) Physician · SAN GABRIEL, CA

Individual Active NPI 1679675904

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
20246815,279$703,445$532,598$387,988
20237436,313$727,615$592,135$444,632
20227415,609$535,260$509,546$375,098

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more2,140$93$62
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes1,199$76$59
99310Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes727$147$111
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes155$166$130
99239Hospital discharge day management, more than 30 minutes140$111$87
G0179Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a134$43$33
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes131$106$81
99349Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes131$124$93
99306Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more130$176$138
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more113$69$49
99310Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes57$146$112
G0181Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow52$104$78

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Geriatric Medicine (Internal Medicine) Physician207RG0300X✓A54999CA

Medicare eligibility

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

Other Geriatric Medicine (Internal Medicine) Physician providers in California

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