Doctor profile · Federal record

Dr. Mei Sun, M.D.

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

  • NPI 1164799599
  • Accepts Medicare
  • 38 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
71 Commercial St # 61
Boston, MA 021091320
(781) 454-5212
Mailing address
415 Marrett RD
Lexington, MA 024217912

Credentials & registration

NPPES · NUCC
NPI registered
November 2011 — 15 yrs on file
Profile last updated
May 6, 2015
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Illinois #125060520 · Massachusetts #260289

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164799599. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
433
Distinct HCPCS
7
Medicare allowed
$38,767
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 190 105 $99
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 68 68 $142
G0444 Annual depression screening, 5 to 15 minutes 57 57 $21
99214 Established patient office or other outpatient visit, 30-39 minutes 40 34 $137
90662 Influenza vaccine split virus, preservative free 33 31 $72
G0008 Administration of influenza virus vaccine 33 31 $31
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 12 12 $16

In context: peer comparison

Among 547 peers in this city , average services per provider: 81. This provider delivers 5.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,125
Patients
287
Total drug cost
$22,783
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 165 49 $2,917
Amlodipine Besylate Generic 122 29 $1,269
Lisinopril Generic 119 34 $1,624
Levothyroxine Sodium Generic 89 28 $1,445
Hydrochlorothiazide Generic 74 21 $246
Metoprolol Succinate Generic 72 21 $2,377
Losartan Potassium Generic 70 22 $1,231
Simvastatin Generic 68 24 $948
Metformin Hcl Generic 63 19 $936
Omeprazole Generic 60 15 $1,349

Frequently asked questions

Auto-generated from federal data
What is Dr. Mei Sun's medical specialty?
Dr. Mei Sun practices Internal Medicine Physician in Boston, MA.
Where does Dr. Mei Sun practice?
Dr. Mei Sun practices at 71 Commercial St # 61, Boston, MA 021091320. Office phone: 7814545212.
What is Dr. Mei Sun's NPI?
Dr. Mei Sun's National Provider Identifier (NPI) is 1164799599, issued by NPPES.
Does Dr. Mei Sun accept Medicare assignment?
Yes. Dr. Mei Sun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mei Sun commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Annual depression screening, 5 to 15 minutes (HCPCS G0444). Source: CMS Medicare Physician & Other Practitioners file.