Diana Lenis, - Medicare Internal Medicine in Lake Grove, NY

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Diana Lenis, is a medicare enrolled "Internal Medicine" physician in Lake Grove, New York. Her current practice location is 4 Smith Haven Mall, Suite 203, Lake Grove, New York. You can reach out to her office (for appointments etc.) via phone at (631) 444-0580.

Diana Lenis is licensed to practice in New York (license number 316755) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1316409907.

Contact Information

Diana Lenis,
4 Smith Haven Mall, Suite 203,
Lake Grove, NY 11755-0001
(631) 444-0580
Not Available

Map and Direction




Physician's Profile

Full NameDiana Lenis
GenderFemale
SpecialityInternal Medicine
Location4 Smith Haven Mall, Suite 203, Lake Grove, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1316409907
  • Provider Enumeration Date: 04/02/2019
  • Last Update Date: 03/26/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 6002142700
  • Enrollment ID: I20230405001102

Medical Identifiers

Medical identifiers for Diana Lenis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1316409907NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 316755 (New York)Primary

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. Diana Lenis allows following entities to bill medicare on her behalf.
Entity NamePine Ridge Indian Health Service Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497786412
PECOS PAC ID: 4688571326
Enrollment ID: O20031218000966

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. Diana Lenis 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
Diana Lenis,
4 Smith Haven Mall, Suite 203,
Lake Grove, NY 11755-2508

Ph: (631) 444-0580		Diana Lenis,
4 Smith Haven Mall, Suite 203,
Lake Grove, NY 11755-0001

Ph: (631) 444-0580

Reviews and Comments


Internal Medicine Doctors in Lake Grove, NY

Dr. Scott A Stein, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4 Smith Haven Mall, Lake Grove, NY 11755
Phone: 631-444-4630    
Dr. Brooke Noelle Learned, DO
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 4 Smith Haven Mall Ste 203, Lake Grove, NY 11755
Phone: 631-444-0580    Fax: 631-444-0562
Robert Joseph Boswell, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 2233 Nesconset Hwy, Ste 202, Lake Grove, NY 11755
Phone: 631-585-5055    Fax: 631-585-4967

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.