What is Gregory Holst's specialty?

Gregory Holst (NPI 1881601615) is a Medicare-billing provider whose primary specialty is Family Practice in Eureka, CA.

Where does Gregory Holst practice?

Gregory Holst practices in Eureka, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1881601615.

How much does Medicare pay Gregory Holst?

Gregory Holst (NPI 1881601615) received approximately $154K in total Medicare Part B payments, serving 534 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1881601615

Gregory HolstMD

Family PracticeEureka, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,465

Unique beneficiaries

—

Total services

3,058

Distinct HCPCS

Medicare payment

$148K

Peer benchmark

Total Medicare services vs. 8,228 Family Practice providers in CA — top quintile (cohort median 411).

PRESCRIBING · PART D · 2024

Total Rx claims

7,947

Beneficiaries

—

Total drug cost

$606K

Distinct drugs

115

Brand share

18.2%

Top prescribed drugs

Losartan Potassium626 claims

Rosuvastatin Calcium623 claims

Atorvastatin Calcium421 claims

Lisinopril304 claims

Levothyroxine Sodium253 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Gregory Holst'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). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Leo Leer Family Practice · Eureka, CA	65	186
James Moore Diagnostic Radiology · Eureka, CA	21	53
Timothy Dalsaso Diagnostic Radiology · Eureka, CA	19	55
Gregory Gibb Ophthalmology · Eureka, CA	18	34

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