What is William Twaddell's specialty?

William Twaddell (NPI 1538296124) is a Medicare-billing provider whose primary specialty is Pathology in Baltimore, MD.

Where does William Twaddell practice?

William Twaddell practices in Baltimore, MD, based on the location reported in the CMS Medicare provider datasets for NPI 1538296124.

How much does Medicare pay William Twaddell?

William Twaddell (NPI 1538296124) received approximately $88K in total Medicare Part B payments, serving 841 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1538296124

William TwaddellM.D.

PRACTICEUNIV OF MD PATHOLOGY ASSOCIATES P ASee all providers at this practice →

PathologyBaltimore, MDI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,494

Unique beneficiaries

—

Total services

2,749

Distinct HCPCS

Medicare payment

$84K

Peer benchmark

Total Medicare services vs. 267 Pathology providers in MD — above median (cohort median 1,363).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where William Twaddell'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). 60 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UNIVERSITY OF MARYLAND MEDICAL CENTER, LLC	480	919
Charles White Diagnostic Radiology · Baltimore, MD	79	251
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	64	118
Univ Of Md Pathology Associates P A Clinical Laboratory · Baltimore, MD	57	114
Jeffrey Galvin Diagnostic Radiology · Baltimore, MD	56	188
Quest Diagnostics Incorporated Md Clinical Laboratory · Baltimore, MD	55	90
NPI 1336133040	53	172
Melina Pectasides Diagnostic Radiology · Cleveland, OH	42	107
Jean Jeudy Diagnostic Radiology · Baltimore, MD	36	104
Eric Goldberg Gastroenterology · Baltimore, MD	34	73
John Lamattina General Surgery · Chicago, IL	34	211
Seth Kligerman Diagnostic Radiology · Denver, CO	32	70

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