PROVIDER PROFILE · NPI 1073585444

Gregory HolzheiD.O.

Family PracticeSaint Johns, MII

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

7,566

Beneficiaries

—

Total drug cost

$687K

Distinct drugs

130

Brand share

22.7%

Top prescribed drugs

Lisinopril499 claims

Levothyroxine Sodium432 claims

Amlodipine Besylate395 claims

Atorvastatin Calcium305 claims

Simvastatin296 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Home health agency

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where Gregory Holzhei'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 · 20 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SPARROW CLINTON HOSPITAL	206	1,051
SPARROW CLINTON HOSPITAL	130	951
EDWARD W SPARROW HOSPITAL ASSOCIATION	45	169
Kay Mclaughlin Internal Medicine · Saint Johns, MI	16	71
Kenneth Thorp Diagnostic Radiology · Lansing, MI	15	52
Ronald Voice Cardiology · Hancock, MI	14	114
Rajani Gundluru Endocrinology · Suwanee, GA	13	50
Edward Craven Emergency Medicine · Saint Johns, MI	12	38
Robert Hills Diagnostic Radiology · Lansing, MI	12	27

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF MICHIGAN	211	1,095
SPARROW CLINTON HOSPITAL	208	1,081
SPARROW CLINTON HOSPITAL	178	1,370
EDWARD W SPARROW HOSPITAL ASSOCIATION	56	249
Kay Mclaughlin Internal Medicine · Saint Johns, MI	24	108
Paul Minnick Family Practice · Shelby, MI	24	66
Robert Hills Diagnostic Radiology · Lansing, MI	19	51
Anthony Armada Diagnostic Radiology · Lansing, MI	16	47
Ellen Meadows Diagnostic Radiology · Lansing, MI	14	40
Kenneth Thorp Diagnostic Radiology · Lansing, MI	13	55
Stephen Chapman Diagnostic Radiology · Lansing, MI	13	29
Simone Arrington Interventional Radiology · Lansing, MI	13	34

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