What is Karen Chang-Chen's specialty?

Karen Chang-Chen (NPI 1508916495) is a Medicare-billing provider whose primary specialty is Endocrinology in Chesterfield, MO.

Where does Karen Chang-Chen practice?

Karen Chang-Chen practices in Chesterfield, MO, based on the location reported in the CMS Medicare provider datasets for NPI 1508916495.

How much does Medicare pay Karen Chang-Chen?

Karen Chang-Chen (NPI 1508916495) received approximately $46K in total Medicare Part B payments, serving 310 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1508916495

Karen Chang-ChenMD

PRACTICEENDOCRINE ASSOCIATES, LLCSee all providers at this practice →

EndocrinologyChesterfield, MOI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

438

Unique beneficiaries

—

Total services

672

Distinct HCPCS

Medicare payment

$45K

Peer benchmark

Total Medicare services vs. 144 Endocrinology providers in MO — below median (cohort median 929).

PRESCRIBING · PART D · 2024

Total Rx claims

2,981

Beneficiaries

—

Total drug cost

$1.5M

Distinct drugs

Brand share

68.7%

Top prescribed drugs

Levothyroxine Sodium298 claims

Semaglutide281 claims

Metformin Hcl213 claims

Tirzepatide209 claims

Rosuvastatin Calcium134 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$108K

Payment records

294

By payment type

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$97K

Travel and Lodging$7K

Food and Beverage$4K

Consulting Fee$750

Top paying entities

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$97K

Travel and Lodging$7K

Food and Beverage$4K

Consulting Fee$750

REFERRAL NETWORK

Where Karen Chang-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). 90 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Mihaela Biscoveanu Endocrinology · Philadelphia, PA	128	230
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	111	247
Achilles Paparsenos Endocrinology · Yardley, PA	96	188
City Of Philadelphia Ambulance Service Provider · Philadelphia, PA	80	130
SAGERMAN, JASON	67	131
LEHRMAN, BRUCE	60	104
Steven Hess Internal Medicine · Philadelphia, PA	59	207
Robert Schlesinger Cardiology · Philadelphia, PA	54	154
Richard Beck Diagnostic Radiology · Philadelphia, PA	50	69
E. Alec Schoenberger Diagnostic Radiology · Philadelphia, PA	47	75
JEFFERSON HEALTH - NORTHEAST	46	96
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	44	83

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