What is William Tierney's specialty?

William Tierney (NPI 1255300513) is a Medicare-billing provider whose primary specialty is Gastroenterology in Oklahoma City, OK.

Where does William Tierney practice?

William Tierney practices in Oklahoma City, OK, based on the location reported in the CMS Medicare provider datasets for NPI 1255300513.

How much does Medicare pay William Tierney?

William Tierney (NPI 1255300513) received approximately $43K in total Medicare Part B payments, serving 239 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1255300513

William TierneyMD

GastroenterologyOklahoma City, OKI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

258

Unique beneficiaries

—

Total services

292

Distinct HCPCS

Medicare payment

$28K

Peer benchmark

Total Medicare services vs. 106 Gastroenterology providers in OK — bottom quintile (cohort median 983).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$22K

Distinct drugs

Brand share

31.5%

Top prescribed drugs

Omeprazole29 claims

Pantoprazole Sodium20 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl18 claims

Colestipol Hcl14 claims

Omeprazole/Sodium Bicarbonate11 claims

QUALITY · MIPS · 2024

Final MIPS score

77.3

Quality

53.7

Cost

70.5

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.10%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$50

Payment records

By payment type

Food and Beverage$50

Top paying entities

Food and Beverage$50

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 370093

Hospital

REFERRAL NETWORK

Where William Tierney'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). 10 inbound referrers · 21 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Dan Nguyen Diagnostic Radiology · Oklahoma City, OK	27	51
Robin Olander Diagnostic Radiology · Oklahoma City, OK	22	55
Theresa Thai Diagnostic Radiology · Oklahoma City, OK	22	49
Emergency Medical Services Authority Ambulance Service Provider · Oklahoma City, OK	21	44
Jennifer Hinkle Diagnostic Radiology · Oklahoma City, OK	19	36
HAYWOOD, BETTY	17	38
Justin North Diagnostic Radiology · Oklahoma City, OK	16	22
Jamal Saadah Emergency Medicine · Houston, TX	16	26
John Walsh Emergency Medicine · Midwest City, OK	13	20
MERCY HOSPITAL OKLAHOMA CITY, INC	11	23

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
HCA HEALTH SERVICES OF OKLAHOMA INC	194	586
GARRISON, VIRGINIA	25	56
EDWARDS, SUSAN	25	81
Sanam Husain Pathology · Oklahoma City, OK	24	53
CONRAD, RACHEL	23	45
GILLIES, ELIZABETH	21	43
Donald Kastens Gastroenterology · Oklahoma City, OK	21	32
Dan Nguyen Diagnostic Radiology · Oklahoma City, OK	20	27
Robert Fails Diagnostic Radiology · Oklahoma City, OK	20	46
Lewis Hassell Pathology · Oklahoma City, OK	19	36
Theresa Thai Diagnostic Radiology · Oklahoma City, OK	17	29
Jason Wagner Diagnostic Radiology · Oklahoma City, OK	16	25

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