PROVIDER PROFILE · NPI 1922107234

William SullivanM.D.

EndocrinologyBoston, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

766

Unique beneficiaries

—

Total services

1,072

Distinct HCPCS

Medicare payment

$53K

Peer benchmark

Total Medicare services vs. 341 Endocrinology providers in MA — above median (cohort median 496).

PRESCRIBING · PART D · 2024

Total Rx claims

3,711

Beneficiaries

—

Total drug cost

$1.8M

Distinct drugs

Brand share

75.8%

Top prescribed drugs

Semaglutide309 claims

Pen Needle, Diabetic216 claims

Metformin Hcl194 claims

Metformin Hcl178 claims

Insulin Glargine,hum.Rec.Anlog160 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$20

Payment records

By payment type

Food and Beverage$20

REFERRAL NETWORK

Where William Sullivan'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). 20 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BETH ISRAEL DEACONESS HOSPITAL-NEEDHAM, INC.	374	1,696
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	87	320
Daniel Rutowicz Podiatry · Needham, MA	36	110
Perminder Dhillon Internal Medicine · Needham, MA	25	49
Ronald Eisenberg Diagnostic Radiology · Boston, MA	23	79
THE GENERAL HOSPITAL CORPORATION	20	78
George Sharuk Ophthalmology · Boston, MA	20	85
Sabera Shah Ophthalmology · Boston, MA	16	112
Paul Spirn Diagnostic Radiology · Boston, MA	16	49
Cecilia Larson Internal Medicine · Needham, MA	16	44
NI MHUIRCHEARTAIGH, JENNIFER	16	37
Mark Williams Nephrology · Boston, MA	14	97

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