What is Gwendolyn Coffey's specialty?

Gwendolyn Coffey (NPI 1659423705) is a Medicare-billing provider whose primary specialty is Nurse Practitioner in Stanford, CA.

Where does Gwendolyn Coffey practice?

Gwendolyn Coffey practices in Stanford, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1659423705.

How much does Medicare pay Gwendolyn Coffey?

Gwendolyn Coffey (NPI 1659423705) received approximately $19K in total Medicare Part B payments, serving 56 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1659423705

Gwendolyn CoffeyNP

PRACTICESTANFORD HEALTH CARESee all providers at this practice →

Nurse PractitionerStanford, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

159

Distinct HCPCS

Medicare payment

$16K

Peer benchmark

Total Medicare services vs. 8,685 Nurse Practitioner providers in CA — above median (cohort median 222).

PRESCRIBING · PART D · 2024

Total Rx claims

138

Beneficiaries

—

Total drug cost

$664K

Distinct drugs

Brand share

26.8%

Top prescribed drugs

Belzutifan24 claims

Duloxetine Hcl21 claims

Ondansetron Hcl21 claims

Levetiracetam19 claims

Dexamethasone15 claims

QUALITY · MIPS · 2024

Final MIPS score

88.5

Quality

87.1

Cost

69.5

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.57%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Gwendolyn Coffey'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). 2 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Lawrence Recht Neurology · Palo Alto, CA	14	46
Zina Zarshenas Payman Diagnostic Radiology · Stanford, CA	12	15

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