PROVIDER PROFILE · NPI 1609899210

Chris DerkMD

RheumatologyPhiladelphia, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

465

Unique beneficiaries

—

Total services

641

Distinct HCPCS

Medicare payment

$40K

Peer benchmark

Total Medicare services vs. 267 Rheumatology providers in PA — below median (cohort median 4,116).

PRESCRIBING · PART D · 2024

Total Rx claims

1,350

Beneficiaries

—

Total drug cost

$854K

Distinct drugs

Brand share

17.5%

Top prescribed drugs

Hydroxychloroquine Sulfate313 claims

Prednisone233 claims

Methotrexate Sodium98 claims

Gabapentin71 claims

Celecoxib57 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Chris Derk'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). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	36	119
PRESBYTERIAN MEDICAL CENTER OF THE UNIVERSITY OF PENNSYLVANIA HEALTH S	24	92
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	12	38
KIM, SUNG	12	29

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