What is Benjamin Chang's specialty?

Benjamin Chang (NPI 1639185143) is a Medicare-billing provider whose primary specialty is Hospitalist in Mountain View, CA.

Where does Benjamin Chang practice?

Benjamin Chang practices in Mountain View, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1639185143.

How much does Medicare pay Benjamin Chang?

Benjamin Chang (NPI 1639185143) received approximately $81K in total Medicare Part B payments, serving 331 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1639185143

Benjamin ChangMD

PRACTICERXCONSULT CORPORATIONSee all providers at this practice →

HospitalistMountain View, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

538

Unique beneficiaries

—

Total services

817

Distinct HCPCS

Medicare payment

$80K

Peer benchmark

Total Medicare services vs. 1,917 Hospitalist providers in CA — top quintile (cohort median 446).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$7K

Distinct drugs

Brand share

31.7%

Top prescribed drugs

Furosemide19 claims

Metoprolol Succinate15 claims

Amoxicillin/Potassium Clav14 claims

Apixaban12 claims

Cephalexin11 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$24

Payment records

By payment type

Food and Beverage$24

Top paying entities

Food and Beverage$24

REFERRAL NETWORK

Where Benjamin Chang'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). 24 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
EL CAMINO HOSPITAL	244	978
Samuel Dawn Diagnostic Radiology · Mountain View, CA	107	556
Daniel Kanada Diagnostic Radiology · Santa Clara, CA	104	626
Edmund Tai Hematology-Oncology · Mountain View, CA	81	632
Royal Ambulance Inc. Ambulance Service Provider · San Leandro, CA	38	112
Imtiaz Qureshi Diagnostic Radiology · Cupertino, CA	38	178
David Tsai Hospitalist · Mountain View, CA	31	246
Michelle Pezzani Hospice and Palliative Care · Mountain View, CA	25	122
Jose Fuentes Hospitalist · Mountain View, CA	23	167
KATO, GREGORY	22	138
Aaron Gladman Emergency Medicine · Torrance, CA	21	64
Jon Keller Pathology · Palo Alto, CA	21	124

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