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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. ALEX O SINELNIKOV MD
NPI 1932168887
Radiology - Diagnostic Radiology in Boston, MA

Active since March 20, 2006PECOS Enrolled
55 FRUIT STREET FND 216, MASSACHUSETTS GENERAL HOSPITAL, BOSTON, MA 02114(617) 724-4255(617) 726-3077 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Dr. Alex O Sinelnikov Md NPPES

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

DR. ALEX O SINELNIKOV MD (NPI 1932168887) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Massachusetts (220852) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932168887
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. ALEX O SINELNIKOVCredential: MD
Location Address55 FRUIT STREET FND 216, MASSACHUSETTS GENERAL HOSPITALBoston, MA 02114
Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894
Phone(617) 724-4255
Fax(617) 726-3077
Sole ProprietorNo
Enumeration DateMarch 20, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1932168887 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in MA · 220852
Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

55 FRUIT STREET FND 216, Boston, MA 02114
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMO Louisiana, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alex O Sinelnikov Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
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 Alex Sinelnikov's NPI number?

The NPI number for Alex Sinelnikov is 1932168887. It was assigned to this individual provider in the NPPES registry on March 20, 2006.

Where is Alex Sinelnikov located?

Alex Sinelnikov practices at 55 Fruit Street Fnd 216 Massachusetts General Hospital, Boston, MA 02114. The listed phone number is (617) 724-4255.

What is Alex Sinelnikov's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Alex Sinelnikov enrolled in Medicare?

Yes. Alex Sinelnikov is registered in the Medicare PECOS enrollment system.

What insurance does Alex Sinelnikov accept?

Health plans from HMO Louisiana and UnitedHealthcare list Alex Sinelnikov as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alex Sinelnikov was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.