What is William Chapin's specialty?

William Chapin (NPI 1083653679) is a Medicare-billing provider whose primary specialty is Endocrinology in Portland, OR.

Where does William Chapin practice?

William Chapin practices in Portland, OR, based on the location reported in the CMS Medicare provider datasets for NPI 1083653679.

How much does Medicare pay William Chapin?

William Chapin (NPI 1083653679) received approximately $32K in total Medicare Part B payments, serving 202 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1083653679

William ChapinMD

EndocrinologyPortland, ORI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

393

Unique beneficiaries

—

Total services

501

Distinct HCPCS

Medicare payment

$31K

Peer benchmark

Total Medicare services vs. 63 Endocrinology providers in OR — above median (cohort median 515).

PRESCRIBING · PART D · 2024

Total Rx claims

1,111

Beneficiaries

—

Total drug cost

$517K

Distinct drugs

Brand share

48.4%

Top prescribed drugs

Levothyroxine Sodium177 claims

Methimazole90 claims

Alendronate Sodium67 claims

Empagliflozin66 claims

Insulin Glargine,hum.Rec.Anlog65 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$28

Payment records

By payment type

Food and Beverage$28

Top paying entities

Food and Beverage$28

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

Hospital

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where William Chapin'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). 2 inbound referrers · 6 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
PROVIDENCE HEALTH & SERVICES OREGON	25	49
LEGACY MOUNT HOOD MEDICAL CENTER	13	20

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
PORTLAND ADVENTIST MEDICAL CENTER	96	378
OREGON HEALTH & SCIENCE UNIVERSITY	22	62
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Seattle, WA	16	20
LEGACY LABORATORY SERVICES, LLC	14	28
PROVIDENCE HEALTH & SERVICES OREGON	12	21
Robert Israel Diagnostic Radiology · Portland, OR	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

Healthparse Signals

Monitor this provider for changes — dated NPI change events