Benjamin Wallbrunn Felder, DO
Internal Medicine Physician · Oceanside, NY
Benjamin Wallbrunn Felder, DO is an internal medicine physician with a practice address in Oceanside, New York, and NPI 1003261041, issued on Apr 27, 2016. Check the license (New York 316981, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Benjamin Wallbrunn Felder
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 316981 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Healthy Way, Oceanside, NY 11572
- Phone
- (516) 632-3666
- Enumerated
- Apr 27, 2016
- Record last updated
- Aug 1, 2023
- Medicare enrollment
- Enrolled (PECOS I20220921001783); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 1 Healthy Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brody Agres, PA-CMedical Physician Assistant1689470502
Verify Benjamin Wallbrunn Felder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 316981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
114 Medicare Part D claims for 38 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
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: $26.61
1 payment: food and beverage; the largest payer was Kiniksa Pharmaceuticals International, plc. 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.
Bills Medicare through 4 group practices
- Atlantic Professional Services OF Rhode Island IncorporatedBrooklyn, NY
- Icahn School OF Medicine AT Mount SinaiNew York, NY
- Mount Sinai School OF MedicineOceanside, NY
- Tbhc Physician Services PCBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin Wallbrunn Felder among 12,067 internal medicine physician records in New York
Benjamin Wallbrunn Felder, DO is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2016 · median 2002 among the 7,221 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 internal medicine physician records list a practice address in Oceanside
They are 22 of the 1,093 NPPES records with a practice address in Oceanside, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Oceanside → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mohammed Ellahi, M.D.Oceanside, NY 115721750619722
- Larry Friedman, MDOceanside, NY 115721770566895
- Muhammad Khan, MDOceanside, NY 115721083097885
- Marian Kolarsky, MDOceanside, NY 115721790920643
- Dmitry Konsky, D.O.Oceanside, NY 115721720085061
- Hai-Wen Ma, MDOceanside, NY 115721952344038
- Glenn Macdonald, M DOceanside, NY 115721437252665
- Timothy Mailloux, M.D.Oceanside, NY 115721215915145
Common questions
What is Benjamin Wallbrunn Felder, DO's NPI number?
Benjamin Wallbrunn Felder, DO's National Provider Identifier (NPI) is 1003261041, issued on Apr 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Wallbrunn Felder, DO located?
The NPPES record lists a practice address at 1 Healthy Way, Oceanside, NY, 11572. Phone: (516) 632-3666. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Wallbrunn Felder, DO's license?
NPPES lists New York license number 316981, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Benjamin Wallbrunn Felder, DO prescribe under Medicare Part D?
In 2024, Benjamin Wallbrunn Felder, DO had 114 Medicare Part D claims for 38 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.