What is Diana Chen's specialty?

Diana Chen (NPI 1518919091) is a Medicare-billing provider whose primary specialty is Internal Medicine in Tulsa, OK.

Where does Diana Chen practice?

Diana Chen practices in Tulsa, OK, based on the location reported in the CMS Medicare provider datasets for NPI 1518919091.

How much does Medicare pay Diana Chen?

Diana Chen (NPI 1518919091) received approximately $118K in total Medicare Part B payments, serving 139 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518919091

Diana ChenMD

Internal MedicineTulsa, OKI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

833

Unique beneficiaries

—

Total services

2,530

Distinct HCPCS

Medicare payment

$95K

Peer benchmark

Total Medicare services vs. 642 Internal Medicine providers in OK — top quintile (cohort median 885).

PRESCRIBING · PART D · 2024

Total Rx claims

6,957

Beneficiaries

—

Total drug cost

$818K

Distinct drugs

118

Brand share

21.5%

Top prescribed drugs

Trazodone Hcl387 claims

Rosuvastatin Calcium343 claims

Atorvastatin Calcium289 claims

Gabapentin271 claims

Lamotrigine195 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$3K

Payment records

133

By payment type

Food and Beverage$3K

Top paying entities

Food and Beverage$3K

REFERRAL NETWORK

Where Diana 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). 7 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGIONAL MEDICAL LABORATORY, INC	110	555
BAILEY MEDICAL CENTER, LLC	29	46
Eric Arnett Nurse Practitioner · Owasso, OK	26	80
LOVELESS, JANA	20	102
ST JOHN MEDICAL CENTER INC	19	72
Shawn Grant Diagnostic Radiology · Tulsa, OK	14	34
AMERITOX, LLC	14	32

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