Dr. Son Lam Nguyen, MD

Internal medicine in Fairfield, CA · Permanente Medical Group

Accepts Medicare assignment

Office

975 Sereno Dr, Vallejo, CA 94589

(707) 651-1000

NPI

1114119526

Specialty

85.8 out of 100 in Medicare’s Merit-based Incentive Payment System for 2024. Medicare Care Compare

Billed services and units in Original Medicare Part B, 2024.

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Original Medicare activity · 2024
HCPCS	Billed services / units	Beneficiaries in this row	Service description (English)	Billing setting
99222	41	41	Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	Facility
99223	58	58	Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	Facility
99231	48	23	Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes	Facility
99232	300	152	Subsequent hospital care with moderate level of medical decision making, if using time, at least 35 minutes	Facility
99233	378	168	Subsequent hospital care with moderate level of medical decision making, if using time, at least 50 minutes	Facility
99238	31	31	Hospital discharge day management, 30 minutes or less	Facility
99239	171	166	Hospital discharge day management, more than 30 minutes	Facility

The office is at 975 Sereno Dr, Vallejo, CA 94589.

The office phone is (707) 651-1000.

Specialty: Internal medicine.

Yes. Son Lam Nguyen billed Original Medicare Part B services in 2024 (see Medicare activity above).

Son Lam Nguyen's NPI is 1114119526.

Son Lam Nguyen is affiliated with Kaiser Foundation Hospital and Rehab Center (Vallejo, CA).

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