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DIANA LENIS
NPI 1316409907
Internal Medicine in Lake Grove, NY

Active since April 02, 2019PECOS EnrolledAccepts Medicare Assignment
4 SMITH HAVEN MALL, SUITE 203, LAKE GROVE, NY 11755(631) 444-0580 Get Directions Write a Review

NPPES record last updated: March 26, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 26, 2025, Jul 25, 2024, Apr 2, 2019 (3 updates tracked since 2019).

About Diana Lenis NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANA LENIS (NPI 1316409907) is an individual internal medicine provider in Lake Grove, New York, licensed in New York (316755) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1316409907
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDIANA LENIS
Location Address4 SMITH HAVEN MALL, SUITE 203Lake Grove, NY 11755-0001
Mailing Address4 Smith Haven Mall, Suite 203Lake Grove, NY 11755-2508 · (631) 444-0580
Phone(631) 444-0580
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 2, 2019
Last NPPES UpdateMarch 26, 20253 updates tracked since enumeration
NPPES CertifiedMarch 24, 2025
✔ NPI 1316409907 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 316755
Definition
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.
4 SMITH HAVEN MALL, SUITE 203, Lake Grove, NY 11755
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Diana Lenis is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6002142700
PECOS Enrollment IDI20240828000520
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Diana Lenis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Stony Brook Internists, University Faculty Practice Corporation
4.0 mi
Nephrology
SUNY @ STONY BROOK, HSC, L16, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 261 clinicians in this Medicare group
NPI 1215976337 (631) 444-2448
Pine Ridge Indian Health Service Hospital
1,474 mi
Clinic/Center
119 SOUTH 1ST AVENUE
Martin, SD 57551
  • Reassigned Medicare billing, Texas enrollment
  • 426 clinicians in this Medicare group
NPI 1003208257 (605) 685-2800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
55 services54 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
55 services51 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
16 services16 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
13 services13 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY
4/5 CMS rating
OwnershipGovernment - State
CMS Certification Number330393
LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11755 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana Lenis's NPI number?

The NPI number for Diana Lenis is 1316409907. It was assigned to this individual provider in the NPPES registry on April 2, 2019.

Where is Diana Lenis located?

Diana Lenis practices at 4 Smith Haven Mall, Suite 203, Lake Grove, NY 11755. The listed phone number is (631) 444-0580.

What is Diana Lenis's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Diana Lenis enrolled in Medicare?

Yes. Diana Lenis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Diana Lenis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Lenis reassigns Medicare benefits to 2 organizations: Stony Brook Internists, University Faculty Practice Corporation (Stony Brook, NY) and Pine Ridge Indian Health Service Hospital (Martin, SD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diana Lenis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Diana Lenis affiliated with any hospitals?

According to CMS data, Diana Lenis is affiliated with Suny/Stony Brook University Hospital.

When was this NPI record last updated?

The NPPES record for Diana Lenis was last updated on March 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.