What is John Chartier's specialty?

John Chartier (NPI 1659390649) is a Medicare-billing provider whose primary specialty is Family Practice in Concord, CA.

Where does John Chartier practice?

John Chartier practices in Concord, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1659390649.

How much does Medicare pay John Chartier?

John Chartier (NPI 1659390649) received approximately $79K in total Medicare Part B payments, serving 309 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1659390649

John ChartierM.D.

PRACTICEJOHN MUIR PHYSICIAN NETWORKSee all providers at this practice →

Family PracticeConcord, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

513

Unique beneficiaries

—

Total services

923

Distinct HCPCS

Medicare payment

$76K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$9K

Distinct drugs

Brand share

40.2%

Top prescribed drugs

Pantoprazole Sodium23 claims

Hydrocodone/Acetaminophen20 claims

Cefpodoxime Proxetil15 claims

Apixaban13 claims

Metoprolol Succinate11 claims

QUALITY · MIPS · 2024

Final MIPS score

90.3

Quality

89.5

Cost

74.3

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.64%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where John Chartier'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). 67 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Jonathan Posin Diagnostic Radiology · Walnut Creek, CA	76	204
Jennifer Decolongon Family Practice · Sacramento, CA	66	184
Viktoriya Sharp Internal Medicine · Walnut Creek, CA	60	267
Amy Lai Diagnostic Radiology · New York, NY	48	140
Kimberly Blumberg Diagnostic Radiology · Walnut Creek, CA	47	150
Ronald Chan Diagnostic Radiology · Walnut Creek, CA	42	109
Joshua Gitter Internal Medicine · Emeryville, CA	42	166
Angelo Crudale Diagnostic Radiology · Walnut Creek, CA	40	118
Konark Sharma Infectious Disease · Walnut Creek, CA	38	174
Sunil Gandhi Diagnostic Radiology · Walnut Creek, CA	37	102
Michael Brown Cardiology · Walnut Creek, CA	37	132
SCHICK, ROBERT	35	90

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