Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Benjamin Wallbrunn Felder , DO

Internal Medicine โ€ข Oceanside, NY

Active NPI 1003261041 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

1 Healthy Way
Oceanside, NY 115721551

Call 5166323666 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1 Healthy Way

Oceanside, NY 115721551

Telephone 5166323666
Organization at the Same NPPES Address or Phone
South Shore Radiation Oncology Associates P C Facility NPI 1801896998

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 3 distinct additional practice-address records in Grand Rapids, MI; New York, NY. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 4 distinct group names: Atlantic Professional Services Of Rhode Island Incorporated; Icahn School Of Medicine At Mount Sinai; Mount Sinai School Of Medicine and 1 more. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2016

Medicare patients

163 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $40,517 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $31,114 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

123 standardized 30-day fills in 2022

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$833 in 2022

The total cost of these prescriptions in 2022, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2022.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $125.00 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

10 years (graduated 2016)

CMS Doctors and Clinicians data list 2016 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2016

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Felder has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Felder as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Oceanside and New York

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Fewer Medicare Part B services than 85% of clinicians listed under Internal Medicine in Oceanside, NY (2024, 18 clinicians with data). Median for this group: 1,039. Middle half: 491 to 1,420.

Fewer Medicare Part B services than 60% of clinicians listed under Internal Medicine in New York (2024, 6,489 clinicians with data). Median for this group: 545. Middle half: 208 to 1,261.

Medicare-allowed amount

A lower Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Oceanside, NY (2024, 18 clinicians with data). Median for this group: $120,659. Middle half: $55,326 to $175,579.

Close to the middle for clinicians listed under Internal Medicine in New York (2024, 6,489 clinicians with data). Median for this group: $53,110. Middle half: $19,561 to $112,419.

Paid by Medicare

A lower Medicare payment amount than 90% of clinicians listed under Internal Medicine in Oceanside, NY (2024, 18 clinicians with data). Median for this group: $96,110. Middle half: $41,922 to $138,441.

Close to the middle for clinicians listed under Internal Medicine in New York (2024, 6,489 clinicians with data). Median for this group: $41,142. Middle half: $14,711 to $88,409.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Dr. Felder are from 2022.

22 active clinicians are listed under Internal Medicine with a practice address in Oceanside, NY (12,093 in New York).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Oceanside

18.2% of these 22 clinicians have the CMS telehealth indicator.

81.8% of these 22 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2022), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $125.00.

Manufacturer Payment Nature Product Type Amount ($)
ViiV Healthcare Company
Food and Beverage
In-kind items and services
APRETUDE General $125.00

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2021โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2022โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
143 68 $297.94 $86.48
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
90 53 $408.47 $129.30
99239 Hospital discharge day management, more than 30 minutes
53 51 $418.77 $125.56
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
36 34 $793.75 $189.59
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
21 21 $532.38 $144.45

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2022.

CMS Part D ยท Data Year 2022
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 24 1,080 $211.48 โ€”
Losartan Potassium Losartan Potassium 15 570 $128.26 โ€”
Amlodipine Besylate Amlodipine Besylate 14 960 $62.96 โ€”
Omeprazole Omeprazole 12 1,080 $430.19 โ€”

Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2023-07-27
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES NY 316981

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Hospitalist

NUCC Taxonomy Code: 208M00000X

License # reported to NPPES NY 316981

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: New York Office of the Professions.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20220921001783

Enrollment State Jurisdiction

NY

PECOS Control ID

8628308509

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Atlantic Professional Services Of Rhode Island Incorporated

121 Dekalb Ave, Brooklyn, NY 112015425

Phone: 7182508000

Tbhc Physician Services Pc

121 Dekalb Ave, Brooklyn, NY 112015425

Phone: 7182508000

Mount Sinai School Of Medicine

1 Healthy Way, Oceanside, NY 115721551

Phone: 8777688462

Icahn School Of Medicine At Mount Sinai

1 St Ave 16th St, New York, NY 10003

Phone: 2128448100

Secondary Practice Locations

First Avenue At 16th Street

New York, NY 10003

Phone: 2128441808

600 Broadway Ave Nw Apt 307

Grand Rapids, MI 495047318

Phone: 5204403152

281 1st Ave

New York, NY 100032925

Phone: 2128441808

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

9 listed
Dr. Jamil Ahmed , MD

Family Medicine

NPI 1205120185

Doctor of Medicine (M.D.)

Dr. Mohammed Ellahi , MD

Internal Medicine

NPI 1750619722

Doctor of Medicine (M.D.)

NPI 1518129501

Doctor of Medicine (M.D.)

Dr. Muhammad Khan , MD

Internal Medicine

NPI 1083097885

Doctor of Medicine (M.D.)

Dr. Dmitry Konsky , DO

Internal Medicine

NPI 1720085061

Doctor of Osteopathic Medicine (D.O.)

NPI 1467761411

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 01, 2023

Hospitalist (license number reported to NPPES: NY 316981)

๐Ÿ“
Updated Practice Location July 13, 2022

Registered at 1 HEALTHY WAY, OCEANSIDE, NY 115721551 (Tel: 5166323666)

๐Ÿ“
Updated Business Mailing Address July 13, 2022

Registered at 1 HEALTHY WAY, OCEANSIDE, NY 115721551 (Tel: 5166323666)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 13, 2022

Internal Medicine (license number reported to NPPES: NY 316981)

โœ…
NPI Profile Active April 27, 2016

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) April 27, 2016

Registered at 600 BROADWAY AVE NW APT 307, GRAND RAPIDS, MI 495047318 (Tel: 5204403152)

๐Ÿ“
Business Mailing Address (Initial Record) April 27, 2016

Registered at 600 BROADWAY AVE NW APT 307, GRAND RAPIDS, MI 495047318 (Tel: 5204403152)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) April 27, 2016

Recorded as BENJAMIN FELDER, DO

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 27, 2016

Student in an Organized Health Care Education/Training Program

๐ŸŸข
Initial NPI Registration & Enumeration April 27, 2016

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1003261041
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 27, 2016
Last Update: August 01, 2023
Sole Proprietor: Yes

Other Internal Medicine Providers in Oceanside

All Internal Medicine Providers in Oceanside

More public profiles in New York

Directory navigation, in NPI number order.

Mailing Address

1 Healthy Way

Oceanside, NY 115721551

Phone: 5166323666

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.