Doctor profile · Federal record

Dr. Xiaoyan Chen, MD

Internal Medicine Physician (CMS: Internal Medicine) · Norwich, CT

  • NPI 1841490299
  • Accepts Medicare
  • MIPS 85.3 / 100 · 2023
  • 28 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
326 Washington St
Norwich, CT 06360
(860) 889-8331

Credentials & registration

NPPES · NUCC
NPI registered
July 2007 — 19 yrs on file
Profile last updated
June 5, 2018
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #53021

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841490299. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
702
Distinct HCPCS
6
Medicare allowed
$66,523
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 461 203 $83
99239 Hospital discharge day management, more than 30 minutes 146 135 $121
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 38 19 $52
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 22 20 $137
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 18 18 $183
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 17 16 $126

In context: peer comparison

Among 8 peers in Norwich Internal Medicine Physician, average services per provider: 107. This provider delivers 6.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$216
Transactions
8
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 2 $53.70
Eisai INC. 2 $47.99
Pfizer INC. 2 $46.08
Abbvie INC. 1 $34.82
Mallinckrodt Hospital Products INC. 1 $33.74

By nature of payment

Food and Beverage
$216

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
160
Patients
152
Total drug cost
$16,433
Drug Type Claims Patients Total cost
Prednisone Generic 51 50 $209
Furosemide Generic 22 21 $59
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 19 19 $119
Doxycycline Hyclate Generic 19 19 $277
Eliquis (Apixaban) Brand 19 13 $15,133
Pantoprazole Sodium Generic 18 18 $532
Azithromycin Generic 12 12 $103

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Xiaoyan Chen's medical specialty?
Dr. Xiaoyan Chen practices Internal Medicine Physician in Norwich, CT.
Where does Dr. Xiaoyan Chen practice?
Dr. Xiaoyan Chen practices at 326 Washington St, Norwich, CT 06360. Office phone: 8608898331.
What is Dr. Xiaoyan Chen's NPI?
Dr. Xiaoyan Chen's National Provider Identifier (NPI) is 1841490299, issued by NPPES.
Does Dr. Xiaoyan Chen accept Medicare assignment?
Yes. Dr. Xiaoyan Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Xiaoyan Chen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.