What is Maria Oka's specialty?

Maria Oka (NPI 1235209263) is a Medicare-billing provider whose primary specialty is Nurse Practitioner in Kailua-Kona, HI.

Where does Maria Oka practice?

Maria Oka practices in Kailua-Kona, HI, based on the location reported in the CMS Medicare provider datasets for NPI 1235209263.

How much does Medicare pay Maria Oka?

Maria Oka (NPI 1235209263) received approximately $39K in total Medicare Part B payments, serving 134 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1235209263

Maria OkaAPRN

Nurse PractitionerKailua-Kona, HII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

169

Unique beneficiaries

—

Total services

539

Distinct HCPCS

Medicare payment

$29K

Peer benchmark

Total Medicare services vs. 448 Nurse Practitioner providers in HI — top quintile (cohort median 195).

PRESCRIBING · PART D · 2024

Total Rx claims

133

Beneficiaries

—

Total drug cost

$6K

Distinct drugs

Brand share

22.6%

Top prescribed drugs

Ciprofloxacin Hcl27 claims

Hydrocortisone22 claims

Collagenase Clostridium Hist.17 claims

Tramadol Hcl16 claims

Doxycycline Hyclate14 claims

QUALITY · MIPS · 2024

Final MIPS score

97.0

Quality

89.8

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.93%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$206

Payment records

By payment type

Food and Beverage$206

Top paying entities

Food and Beverage$206

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 120019

Hospital

REFERRAL NETWORK

Where Maria Oka'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 · 7 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Clinical Laboratories Of Hawaii Llp Clinical Laboratory · Ewa Beach, HI	43	501
Douglas Sides Interventional Radiology · Hilo, HI	18	38
Diagnostic Laboratory Services, Inc Clinical Laboratory · Aiea, HI	12	94
WEST HAWAII HOME HEALTH SERVICES, INC	12	37

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Clinical Laboratories Of Hawaii Llp Clinical Laboratory · Ewa Beach, HI	32	340
KONA HOSPITAL	27	75
Andrew Fedder General Surgery · Kailua-Kona, HI	19	123
Lori Wilhelm Diagnostic Radiology · Kailua Kona, HI	15	38
Douglas Sides Interventional Radiology · Hilo, HI	12	41
WEST HAWAII HOME HEALTH SERVICES, INC	11	27
Robert Saito Diagnostic Radiology · Kailua-Kona, HI	11	37

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