What is John Shum's specialty?

John Shum (NPI 1861616047) is a Medicare-billing provider whose primary specialty is Obstetrics & Gynecology in Longview, TX.

Where does John Shum practice?

John Shum practices in Longview, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1861616047.

How much does Medicare pay John Shum?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for John Shum (NPI 1861616047) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1861616047

John Shum

PRACTICEDRL LABS LTDSee all providers at this practice →

Obstetrics & GynecologyLongview, TXI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$1K

Distinct drugs

Brand share

48.9%

Top prescribed drugs

Norgestimate-Ethinyl Estradiol23 claims

Promethazine Hcl13 claims

Norethindrone Acetate11 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$230

Payment records

By payment type

Food and Beverage$230

Top paying entities

Food and Beverage$230

REFERRAL NETWORK

Where John Shum'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). 1 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	17	38

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