What is Barnett Grier's specialty?

Barnett Grier (NPI 1932233665) is a Medicare-billing provider whose primary specialty is Internal Medicine in Los Angeles, CA.

Where does Barnett Grier practice?

Barnett Grier practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1932233665.

How much does Medicare pay Barnett Grier?

Barnett Grier (NPI 1932233665) received approximately $89K in total Medicare Part B payments, serving 393 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1932233665

Barnett GrierM.D.

PRACTICEGRIER HEALTH PROS PCSee all providers at this practice →

Internal MedicineLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

656

Unique beneficiaries

—

Total services

860

Distinct HCPCS

Medicare payment

$89K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — above median (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

4,768

Beneficiaries

—

Total drug cost

$433K

Distinct drugs

112

Brand share

24.4%

Top prescribed drugs

Atorvastatin Calcium294 claims

Losartan Potassium254 claims

Amlodipine Besylate196 claims

Hydrocodone/Acetaminophen189 claims

Lisinopril186 claims

QUALITY · MIPS · 2024

Final MIPS score

75.1

Quality

84.0

Cost

42.9

Improvement activities

40.0

Promoting interop.

88.0

Payment adjustment

0.00%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Barnett Grier'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). 18 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
EASTERN PLUMAS HEALTH CARE DISTRICT	231	938
EASTERN PLUMAS HEALTH CARE DISTRICT	165	580
EASTERN PLUMAS HEALTH CARE DISTRICT	97	308
EVANS, JOHN	61	150
PLUMAS DISTRICT HOSPITAL	43	136
PHEN, LOVSHO	42	134
Paul Swanson Emergency Medicine · Portola, CA	31	99
RENOWN REGIONAL MEDICAL CENTER	29	70
Kenneth Robinson Emergency Medicine · Portola, CA	28	77
PLUMAS DISTRICT HOSPITAL	23	60
Leon Jackson Diagnostic Radiology · Winnemucca, NV	21	42
Jonathan Friden Optometry · Quincy, CA	20	32

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