What is Joseph Greenberg's specialty?

Joseph Greenberg (NPI 1912085937) is a Medicare-billing provider whose primary specialty is Dermatology in San Rafael, CA.

Where does Joseph Greenberg practice?

Joseph Greenberg practices in San Rafael, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1912085937.

How much does Medicare pay Joseph Greenberg?

Joseph Greenberg (NPI 1912085937) received approximately $158K in total Medicare Part B payments, serving 188 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1912085937

Joseph GreenbergMD

PRACTICEJOSEPH H GREENBERG LTD A MEDICAL CORPSee all providers at this practice →

DermatologySan Rafael, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

397

Unique beneficiaries

—

Total services

1,256

Distinct HCPCS

Medicare payment

$104K

Peer benchmark

Total Medicare services vs. 1,546 Dermatology providers in CA — below median (cohort median 2,504).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

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 Joseph Greenberg'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). 28 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Paul Wasserstein Pathology · Greenbrae, CA	331	621
MARIN GENERAL HOSPITAL	223	624
SUTTER BAY HOSPITALS	166	506
Ucsf Dermatopathology Service Clinical Laboratory · San Francisco, CA	79	174
John Shin Ophthalmology · San Rafael, CA	43	146
Frederick Kretzschmar Pathology · Greenbrae, CA	41	87
Christian Kim Ophthalmology · San Rafael, CA	37	87
Robert Wirth Diagnostic Radiology · Novato, CA	24	44
ORWIG, DENNIS	23	33
BAER, MARGARET	22	55
Russell Davis Podiatry · Greenbrae, CA	18	51
Ernest Sponzilli Physical Medicine and Rehabilitation · Larkspur, CA	18	99

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