Dr Richard Charles Feldstein, MD, MSC - Medicare Gastroenterology in Commack, NY

Dr Richard Charles Feldstein, MD, MSC is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Commack, New York. He graduated from medical school in 2002 and has 22 years of diverse experience with area of expertise as Gastroenterology. His current practice location is 1092 Jericho Tpke Ste 2s, Commack, New York. You can reach out to his office (for appointments etc.) via phone at (631) 543-8660.

Dr Richard Charles Feldstein is licensed to practice in New York (license number 003361) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1851533699.

Contact Information

Dr Richard Charles Feldstein, MD, MSC
1092 Jericho Tpke Ste 2s,
Commack, NY 11725-3016
(631) 543-8660
(631) 543-8661

Map and Direction




Physician's Profile

Full NameDr Richard Charles Feldstein
GenderMale
SpecialityGastroenterology
Experience22 Years
Location1092 Jericho Tpke Ste 2s, Commack, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Richard Charles Feldstein graduated from medical school in 2002
  NPI Data:
  • NPI Number: 1851533699
  • Provider Enumeration Date: 03/25/2009
  • Last Update Date: 02/04/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9638368665
  • Enrollment ID: I20110106000703

Medical Identifiers

Medical identifiers for Dr Richard Charles Feldstein such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851533699NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 003361 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Catherine Of Siena HospitalSmithtown, NYHospital

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Richard Charles Feldstein allows following entities to bill medicare on his behalf.
Entity NameRobert M Lazar Md Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760607311
PECOS PAC ID: 5597656173
Enrollment ID: O20080201000067

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Richard Charles Feldstein is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Richard Charles Feldstein, MD, MSC
1092 Jericho Tpke Ste 2s,
Commack, NY 11725-3016

Ph: (631) 543-8660
Dr Richard Charles Feldstein, MD, MSC
1092 Jericho Tpke Ste 2s,
Commack, NY 11725-3016

Ph: (631) 543-8660

Reviews and Comments


Internal Medicine Doctors in Commack, NY

Elizabeth Adele Sturm, M.D.
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Phone: 631-715-2262    
Dr. Karen Blau, M.D.
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Prabha Pillai, M.D
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Dr. Saadat Ul Aleem, M.D./PH.D.
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Practice Location: 500 Commack Rd Unit 150d, Commack, NY 11725
Phone: 934-223-7123    Fax: 934-223-7118
Asmita Satapathy, M.D
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Phone: 631-635-5100    
Janice Shen,
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Practice Location: 650 Commack Rd, Commack, NY 11725
Phone: 631-623-4258    
Steven M Sugarman, MD
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Medicare: Medicare Enrolled
Practice Location: 650 Commack Rd, Commack, NY 11725
Phone: 646-227-3813    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.