What is William Kiernan's specialty?

William Kiernan (NPI 1174548291) is a Medicare-billing provider whose primary specialty is Optometry in Loma Linda, CA.

Where does William Kiernan practice?

William Kiernan practices in Loma Linda, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1174548291.

How much does Medicare pay William Kiernan?

William Kiernan (NPI 1174548291) received approximately $37K in total Medicare Part B payments, serving 385 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1174548291

William KiernanOD

OptometryLoma Linda, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

372

Unique beneficiaries

—

Total services

547

Distinct HCPCS

Medicare payment

$36K

Peer benchmark

Total Medicare services vs. 2,493 Optometry providers in CA — top quintile (cohort median 147).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

88.9

Quality

72.1

Cost

77.4

Improvement activities

40.0

Promoting interop.

80.0

Payment adjustment

0.58%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where William Kiernan'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 · 9 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SEVENTH-DAY ADVENTISTS LOMA LINDA UNIVERSITY MEDICAL CENTER	129	300
Unilab Corporation Clinical Laboratory · West Hills, CA	23	47
Mariam Amiri Podiatry · Loma Linda, CA	11	25
Ook Kim Internal Medicine · Riverside, CA	11	29

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
SEVENTH-DAY ADVENTISTS LOMA LINDA UNIVERSITY MEDICAL CENTER	147	317
Unilab Corporation Clinical Laboratory · West Hills, CA	25	63
Mariam Amiri Podiatry · Loma Linda, CA	16	29
Samantha Perea Ophthalmology · Loma Linda, CA	15	35
Ambika Sivanandam Family Practice · Loma Linda, CA	15	45
Ook Kim Internal Medicine · Riverside, CA	14	24
James Larsen Hospitalist · Loma Linda, CA	14	22
Kevin Codorniz Endocrinology · Loma Linda, CA	13	21
F Koteira Internal Medicine · Loma Linda, CA	11	21

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