Doctor profile · Federal record

Dr. Yan Li, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Worcester, MA

  • NPI 1518948090
  • Accepts Medicare
  • 40 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
55 Lake Ave N, Department of Internal Medicine
Worcester, MA 016550002
(508) 334-2056
Mailing address
Po Box 415348
Boston, MA 022415348

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
November 4, 2020
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Massachusetts #215981
Medicaid
MA #0199419

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518948090. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
264
Distinct HCPCS
5
Medicare allowed
$14,765
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 101 63 $71
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 74 74 $42
99213 Established patient office or other outpatient visit, 20-29 minutes 33 29 $46
99215 Established patient office or other outpatient visit, 40-54 minutes 29 24 $86
99212 Established patient office or other outpatient visit, 10-19 minutes 27 27 $16

In context: peer comparison

Among 114 peers in Worcester Internal Medicine Physician, average services per provider: 102. This provider delivers 2.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,331
Patients
358
Total drug cost
$50,295
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 288 84 $7,319
Amlodipine Besylate Generic 150 40 $1,900
Omeprazole Generic 138 40 $3,416
Lisinopril Generic 126 37 $2,442
Levothyroxine Sodium Generic 98 31 $1,577
Losartan Potassium Generic 80 29 $1,770
Gabapentin Generic 69 13 $2,376
Tramadol Hcl Generic 60 15 $581
Trazodone Hcl Generic 56 13 $1,011
Rosuvastatin Calcium Generic 54 13 $3,268

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Yan Li's medical specialty?
Dr. Yan Li practices Internal Medicine Physician in Worcester, MA.
Where does Dr. Yan Li practice?
Dr. Yan Li practices at 55 Lake Ave N, Worcester, MA 016550002. Office phone: 5083342056.
What is Dr. Yan Li's NPI?
Dr. Yan Li's National Provider Identifier (NPI) is 1518948090, issued by NPPES.
Does Dr. Yan Li accept Medicare assignment?
Yes. Dr. Yan Li accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Yan Li commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.