What is John Zink's specialty?

John Zink (NPI 1366628935) is a Medicare-billing provider whose primary specialty is General Surgery in Walnut Creek, CA.

Where does John Zink practice?

John Zink practices in Walnut Creek, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1366628935.

How much does Medicare pay John Zink?

John Zink (NPI 1366628935) received approximately $83K in total Medicare Part B payments, serving 247 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1366628935

John ZinkMD

PRACTICEALEPH LAB, LLCSee all providers at this practice →

General SurgeryWalnut Creek, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

338

Unique beneficiaries

—

Total services

423

Distinct HCPCS

Medicare payment

$40K

Peer benchmark

Total Medicare services vs. 1,763 General Surgery providers in CA — top quintile (cohort median 269).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

83.6

Quality

67.6

Cost

71.6

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.36%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$17K

Payment records

By payment type

Education$12K

Travel and Lodging$4K

Food and Beverage$1K

Gift$15

Top paying entities

Education$12K

Travel and Lodging$4K

Food and Beverage$1K

Gift$15

REFERRAL NETWORK

Where John Zink'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 · 17 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Michael Deboisblanc General Surgery · Walnut Creek, CA	12	18

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
JOHN MUIR HEALTH	70	123
American Medical Response West Ambulance Service Provider · Concord, CA	40	58
Michael Deboisblanc General Surgery · Walnut Creek, CA	23	45
William Hoddick Diagnostic Radiology · Walnut Creek, CA	19	37
Jonathan Posin Diagnostic Radiology · Walnut Creek, CA	19	41
Brian Chin General Surgery · Walnut Creek, CA	16	30
Brian Mcguinness Colorectal Surgery (Proctology) · Walnut Creek, CA	16	35
ADEY, GEOFFREY	16	26
Charleen Kim General Surgery · Walnut Creek, CA	15	34
JOHN MUIR HEALTH	14	16
Terence Chen Neurosurgery · Walnut Creek, CA	12	15
Sunil Gandhi Diagnostic Radiology · Walnut Creek, CA	12	20

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