What is David Zack's specialty?

David Zack (NPI 1407955008) is a Medicare-billing provider whose primary specialty is Gastroenterology in Toledo, OH.

Where does David Zack practice?

David Zack practices in Toledo, OH, based on the location reported in the CMS Medicare provider datasets for NPI 1407955008.

How much does Medicare pay David Zack?

David Zack (NPI 1407955008) received approximately $81K in total Medicare Part B payments, serving 480 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1407955008

David ZackD.O.

PRACTICENORTHWEST OHIO GASTROENTEROLOGY ASSOCIATES INC.See all providers at this practice →

GastroenterologyToledo, OHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

663

Unique beneficiaries

—

Total services

735

Distinct HCPCS

Medicare payment

$76K

Peer benchmark

Total Medicare services vs. 553 Gastroenterology providers in OH — above median (cohort median 554).

PRESCRIBING · PART D · 2024

Total Rx claims

1,551

Beneficiaries

—

Total drug cost

$1.2M

Distinct drugs

Brand share

40.3%

Top prescribed drugs

Pantoprazole Sodium339 claims

Famotidine135 claims

Omeprazole121 claims

Sodium, Potassium,mag Sulfates106 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl94 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

125

By payment type

Food and Beverage$2K

Education$31

Top paying entities

Food and Beverage$2K

Education$31

REFERRAL NETWORK

Where David Zack'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). 40 inbound referrers · 91 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MERCY HEALTH - ST VINCENT MEDICAL CENTER LLC	122	377
THE TOLEDO HOSPITAL	56	110
Christine Haggerty Nurse Practitioner · Toledo, OH	42	83
Darlene Wilhelm Nurse Practitioner · Oregon, OH	36	66
Bruce Siders Diagnostic Radiology · Toledo, OH	35	74
Adireddy Kamireddy Internal Medicine · Toledo, OH	33	105
MADOFF, LEONARD	28	52
Donald Cox Diagnostic Radiology · Toledo, OH	26	58
Charles Gbur Cardiology · Maumee, OH	23	46
Michael Pappas Gastroenterology · Toledo, OH	22	47
Michelle Mccaster Certified Registered Nurse Anesthetist (CRNA) · Detroit, MI	22	52
Syed Zamir Interventional Radiology · Toledo, OH	20	61

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Toledo Endoscopy Asc Llc Ambulatory Surgical Center · Toledo, OH	157	290
NPI 1750387031	147	373
MERCY HEALTH - ST VINCENT MEDICAL CENTER LLC	114	365
James Edinger Certified Registered Nurse Anesthetist (CRNA) · Sylvania, OH	64	122
THE TOLEDO HOSPITAL	51	106
Michael Sorosiak Certified Registered Nurse Anesthetist (CRNA) · Trenton, MI	49	96
Christine Haggerty Nurse Practitioner · Toledo, OH	43	122
Stephen Strobel Pathology · Toledo, OH	40	79
BRITTON, ANDREW	39	78
Rubina Shah Diagnostic Radiology · Toledo, OH	38	110
MERCY HEALTH - ST ANNE HOSPITAL LLC	34	102
Darlene Wilhelm Nurse Practitioner · Oregon, OH	33	73

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