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DR. SVETLANA KATSNELSON MD
NPI 1972829000
Internal Medicine - Endocrinology, Diabetes & Metabolism in East Setauket, NY

Active since April 14, 2010PECOS EnrolledAccepts Medicare Assignment
26 RESEARCH WAY, EAST SETAUKET, NY 11733(631) 444-0580(631) 444-9808 Get Directions Write a Review

NPPES record last updated: December 16, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 16, 2021, Feb 14, 2016 (2 updates tracked since 2016).

About Dr. Svetlana Katsnelson Md NPPES

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

DR. SVETLANA KATSNELSON MD (NPI 1972829000) is an individual endocrinology, diabetes & metabolism provider in East Setauket, New York, licensed in California (A135028) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS and is a graduate of New York University School Of Medicine (2010).

NPPES Registry Identity

NPI1972829000
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. SVETLANA KATSNELSONCredential: MD
Location Address26 RESEARCH WAYEast Setauket, NY 11733-3526
Mailing Address710 Lawrence Expy, Department 248Santa Clara, CA 95051-5173 · (408) 851-9108 · Fax (408) 851-2729
Phone(631) 444-0580
Fax(631) 444-9808
Sole ProprietorNo
Medical School CMSNew York University School Of MedicineGraduated 2010
Enumeration DateApril 14, 2010
Last NPPES UpdateDecember 16, 20212 updates tracked since enumeration
✔ NPI 1972829000 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A135028
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
26 RESEARCH WAY, East Setauket, NY 11733
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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

Dr. Svetlana Katsnelson Md 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 ID1759687452
PECOS Enrollment IDI20160307001128
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 Reassignment

Medicare enrollment records show Svetlana Katsnelson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
2,553 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11733 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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. HAKSOO KIM NURSE PRACTITIONER
Nurse Practitioner (Adult Health)
26 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-0502
MS. JENNIFER M MULVEY FITZGERALD NP, CDE
Nurse Practitioner (Family)
26 RESEARCH WAY, SUITE 1
EAST SETAUKET, NY 11733
Suffolk County (914) 649-9993
DR. LEONARD ARBEIT M.D.
Internal Medicine (Nephrology)
26 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-0580
DR. EDWARD NORD M.D.
Internal Medicine (Nephrology)
26 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-0580
DR. RAJEEV BALWANT PATEL M.D.
Internal Medicine (Pulmonary Disease)
26 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-9953
DR. HAROLD CARLSON M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
26 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-0580
DR. MOHAMED MOHSEN MANSOUR M.D.
Internal Medicine (Pulmonary Disease)
26 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-1750
MRS. FATIMA SHEIKH D.O
Internal Medicine (Nephrology)
26 RESEARCH WAY
EAST SETAUKET, NY 11733
Suffolk County (631) 444-0580

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 Svetlana Katsnelson's NPI number?

The NPI number for Svetlana Katsnelson is 1972829000. It was assigned to this individual provider in the NPPES registry on April 14, 2010.

Where is Svetlana Katsnelson located?

Svetlana Katsnelson practices at 26 Research Way, East Setauket, NY 11733. The listed phone number is (631) 444-0580.

What is Svetlana Katsnelson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Svetlana Katsnelson enrolled in Medicare?

Yes. Svetlana Katsnelson 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 organization bills Medicare for Svetlana Katsnelson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Svetlana Katsnelson reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, CA). The 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 Svetlana Katsnelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Svetlana Katsnelson was last updated on December 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.