Doctor profile · Federal record

Dr. Hongyu Zhang

Internal Medicine Physician (CMS: Internal Medicine) · Wilmington, DE

  • NPI 1609280551
  • Accepts Medicare
  • MIPS 46.5 / 100 · 2023
  • 24 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
701 N Clayton St
Wilmington, DE 198053165
(302) 421-4100
Additional location
4735 Ogletown Stanton RD
Newark, DE 197132072
(302) 623-2853
Additional location
1500 Lansdowne Ave
Darby, PA 190231200
(610) 237-4000
Mailing address
111 Continental Dr Ste 102
Newark, DE 197134302

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
March 17, 2018
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Delaware #C1-0012351

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609280551. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
788
Distinct HCPCS
6
Medicare allowed
$91,924
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 274 132 $120
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 215 112 $79
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 121 120 $176
99239 Hospital discharge day management, more than 30 minutes 97 97 $114
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 58 57 $134
99238 Hospital discharge day management, 30 minutes or less 23 23 $83

In context: peer comparison

Among 26 peers in Wilmington Internal Medicine Physician, average services per provider: 119. This provider delivers 6.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
101
Patients
12
Total drug cost
$797
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 33 12 $220
Atorvastatin Calcium Generic 18 0 $161
Pantoprazole Sodium Generic 18 0 $108
Hydralazine Hcl Generic 16 0 $239
Lisinopril Generic 16 0 $70

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Hongyu Zhang's medical specialty?
Dr. Hongyu Zhang practices Internal Medicine Physician in Wilmington, DE.
Where does Dr. Hongyu Zhang practice?
Dr. Hongyu Zhang practices at 701 N Clayton St, Wilmington, DE 198053165. Office phone: 3024214100.
What is Dr. Hongyu Zhang's NPI?
Dr. Hongyu Zhang's National Provider Identifier (NPI) is 1609280551, issued by NPPES.
Does Dr. Hongyu Zhang accept Medicare assignment?
Yes. Dr. Hongyu Zhang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hongyu Zhang commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.