Benjamin Willis Arnold, MD
Internal Medicine Physician · Grand Rapids, MI
Benjamin Willis Arnold, MD is an internal medicine physician with a practice address in Grand Rapids, Michigan, and NPI 1720831225, issued on Apr 8, 2024. Check the license (Michigan 4351052980, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Benjamin Willis Arnold
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4351052980 MI
Self-reported in NPPES; status is on the state search - Practice location
- 275 Michigan St NE FL 9, Grand Rapids, MI 49503
- Phone
- (616) 391-3777
- Enumerated
- Apr 8, 2024
- Record last updated
- Feb 5, 2025
- Entity
- Type 1 · individual
Also registered at 275 Michigan St NE FL 9
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Benjamin Willis Arnold in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4351052980Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
28 Medicare Part D claims for 12 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $20.55
1 payment: food and beverage; the largest payer was Ucb, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
451 internal medicine physician records list a practice address in Grand Rapids
They are 451 of the 18,005 NPPES records with a practice address in Grand Rapids, and 5,735 internal medicine physician records in Michigan.
All 451 in Grand Rapids → All 5,735 in Michigan → Every provider in Grand Rapids →
Other internal medicine physician records in Michigan
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- Ali Abbas, M.D.Pontiac, MI1972167526
- Sura Abbas, MDWarren, MI1801687405
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Valerie Abbott, MDSouthfield, MI1740289487
- Samer Abboud, MDSaginaw, MI1245804178
Common questions
What is Benjamin Willis Arnold, MD's NPI number?
Benjamin Willis Arnold, MD's National Provider Identifier (NPI) is 1720831225, issued on Apr 8, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Willis Arnold, MD located?
The NPPES record lists a practice address at 275 Michigan St NE FL 9, Grand Rapids, MI, 49503. Phone: (616) 391-3777. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Willis Arnold, MD's license?
NPPES lists Michigan license number 4351052980, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Benjamin Willis Arnold, MD prescribe under Medicare Part D?
In 2024, Benjamin Willis Arnold, MD had 28 Medicare Part D claims for 12 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.