What is Defeng Chen's specialty?

Defeng Chen (NPI 1689602112) is a Medicare-billing provider whose primary specialty is Internal Medicine in Corpus Christi, TX.

Where does Defeng Chen practice?

Defeng Chen practices in Corpus Christi, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1689602112.

How much does Medicare pay Defeng Chen?

Defeng Chen (NPI 1689602112) received approximately $335K in total Medicare Part B payments, serving 696 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1689602112

Defeng ChenMD

PRACTICEMICHAEL HALPERT MD PLLCSee all providers at this practice →

Internal MedicineCorpus Christi, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,524

Unique beneficiaries

—

Total services

4,291

Distinct HCPCS

Medicare payment

$335K

Peer benchmark

Total Medicare services vs. 6,183 Internal Medicine providers in TX — top quintile (cohort median 673).

PRESCRIBING · PART D · 2024

Total Rx claims

628

Beneficiaries

—

Total drug cost

$17K

Distinct drugs

Brand share

13.7%

Top prescribed drugs

Atorvastatin Calcium63 claims

Pantoprazole Sodium49 claims

Lisinopril36 claims

Furosemide35 claims

Losartan Potassium30 claims

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

0.0

Cost

93.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Defeng Chen's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 91 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Thomas Ertzner Diagnostic Radiology · Corpus Christi, TX	207	866
GUTIERREZ QUEHL, CARLOS	193	995
Kenneth Vanexan Diagnostic Radiology · Corpus Christi, TX	180	826
GEMINI AMBULANCE SERVICE, INC.	124	452
Anthony Asistido Internal Medicine · Corpus Christi, TX	119	804
Divyang Ayar Interventional Radiology · Pearland, TX	114	565
Ann Cox Diagnostic Radiology · Corpus Christi, TX	110	480
David Saldana Diagnostic Radiology · Corpus Christi, TX	101	409
Suresh Kulkarni Internal Medicine · Corpus Christi, TX	87	256
Heriberto Tejeda Internal Medicine · Corpus Christi, TX	84	409
KRYNSKI, GREGORY	81	608
John Pappas Interventional Cardiology · Corpus Christi, TX	79	279

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events