What is David Dang's specialty?

David Dang (NPI 1932162385) is a Medicare-billing provider whose primary specialty is Rheumatology in Garden Grove, CA.

Where does David Dang practice?

David Dang practices in Garden Grove, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1932162385.

How much does Medicare pay David Dang?

David Dang (NPI 1932162385) received approximately $255K in total Medicare Part B payments, serving 833 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1932162385

David DangM.D.

PRACTICEHARBOR ARTHRITIS AND MEDICAL CLINICSee all providers at this practice →

RheumatologyGarden Grove, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,676

Unique beneficiaries

—

Total services

4,079

Distinct HCPCS

Medicare payment

$255K

Peer benchmark

Total Medicare services vs. 530 Rheumatology providers in CA — above median (cohort median 1,833).

PRESCRIBING · PART D · 2024

Total Rx claims

9,905

Beneficiaries

—

Total drug cost

$10.1M

Distinct drugs

Brand share

26.4%

Top prescribed drugs

Gabapentin1,101 claims

Celecoxib920 claims

Famotidine818 claims

Tramadol Hcl641 claims

Methotrexate Sodium505 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$6K

Payment records

209

By payment type

Food and Beverage$6K

Education$89

Top paying entities

Food and Beverage$6K

Education$89

REFERRAL NETWORK

Where David Dang'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	98	204
Khoi Tang Urology · Garden Grove, CA	21	31
Long Dang Gastroenterology · Westminster, CA	19	32
Duc Nguyen Podiatry · Garden Grove, CA	18	84
Hoang Le Pulmonary Disease · Fountain Valley, CA	13	27
CASSIDY, DAVID	12	19
ORANGE COAST MEMORIAL MEDICAL CENTER	11	13
Tao Duong Cardiology · Westminster, CA	11	20
Triet Nguyen Ophthalmology · Westminster, CA	11	18

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