Lam, Yun

Lam, Yun was paid $686K by Medicaid between Jan 2018 and Oct 2023, across 21 billing codes. Its largest line is 99213, doctor's office visit, returning patient (routine) — 48% of everything it billed.

33Billing provider infoLAM, YUN
BOSTON, MA 02116

33aNPI1134100894assigned 11/09/2005

33bProvider typeInternal Medicine Physician

28Total paid$686K

24GClaims21,504

24DCodes billed21

24AFirst – last monthJan 2018 – Oct 2023

Compared with peers

Next to other Internal Medicine Physician providers in Massachusetts

Rank by total paid#58 of 1,270

Median peer was paid$8K

This provider vs. median82×

Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.

Box 24A · Dates of service

Paid by month

Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider

By year, as a table

Year	Claims	Paid
2018	3,847	$124K
2019	4,569	$112K
2020	3,248	$102K
2021	3,846	$121K
2022	3,691	$133K
2023	2,303	$96K

Box 24 · Service lines

What it billed for

Code	Service	Share	Claims	Bene. records	Paid
99213	Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity	48%	9,794	8,759	$329K
99214	Doctor's office visit, returning patient (more involved)Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity	30%	4,269	4,146	$204K
99397		9.0%	703	694	$62K
90662		2.1%	1,370	1,289	$14K
99396	Periodic comprehensive preventive medicine reevaluation, established patient, 40-64 years	1.8%	118	118	$13K
99212	Office or other outpatient visit for the evaluation and management of an established patient, straightforward	1.8%	650	609	$12K
G0008	Administration of influenza virus vaccine	1.5%	1,697	1,587	$11K
G0439	Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	1.4%	1,088	1,061	$9K
90682		1.1%	301	234	$7K
99442		<1%	524	488	$6K
G0438	Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	<1%	168	158	$5K
90750		<1%	24	24	$4K

9 more codes

90471	Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections), 1 vaccine	<1%	211	$4K
90686		<1%	286	$3K
90688		<1%	75	$944.69
3078F		<1%	82	$526.40
3075F		<1%	39	$444.62
3077F		<1%	41	$414.14
99441		<1%	23	$149.47
G0009	Administration of pneumococcal vaccine	<1%	28	$139.80
1111F		<1%	13	$136.98

Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.