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DR. ALAN I HARRIS M.D.
NPI 1821026006
Internal Medicine - Gastroenterology in Syosset, NY

Active since June 28, 2006PECOS Enrolled
25 CEDARFIELD RD, SYOSSET, NY 11791(516) 692-4067(516) 692-4067 Get Directions Write a Review

NPPES record last updated: May 30, 2025. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Dr. Alan I Harris M.d. NPPES

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

DR. ALAN I HARRIS M.D. (NPI 1821026006) is an individual gastroenterology provider in Syosset, New York, licensed in New York (116565) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821026006
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ALAN I HARRISCredential: M.D.
Location Address25 CEDARFIELD RDSyosset, NY 11791-1416
Mailing Address25 Cedarfield RdSyosset, NY 11791-1416 · (516) 692-4067 · Fax (516) 692-4067
Phone(516) 692-4067
Fax(516) 692-4067
Sole ProprietorNo
Enumeration DateJune 28, 2006
Last NPPES UpdateMay 30, 2025
NPPES CertifiedMay 30, 2025
✔ NPI 1821026006 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NY · 116565
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
25 CEDARFIELD RD, Syosset, NY 11791
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Other Identifiers 2

Medicaid00416106NY
Other116565NY · License Number

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. Alan I Harris M.d. 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 11791 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 Alan Harris's NPI number?

The NPI number for Alan Harris is 1821026006. It was assigned to this individual provider in the NPPES registry on June 28, 2006.

Where is Alan Harris located?

Alan Harris practices at 25 Cedarfield Rd, Syosset, NY 11791. The listed phone number is (516) 692-4067.

What is Alan Harris's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Alan Harris enrolled in Medicare?

Yes. Alan Harris is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Alan Harris was last updated on May 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.