ZAID ALKAISSY MD
NPI 1285290445
Internal Medicine - Gastroenterology in Mesa, AZ

Q: What is Zaid Alkaissy's NPI number?

The NPI number for Zaid Alkaissy is 1285290445. It was assigned to this individual provider in the NPPES registry on May 14, 2019.

Q: What is Zaid Alkaissy's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Zaid Alkaissy was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since May 14, 2019PECOS EnrolledAccepts Medicare Assignment

6020 E ARBOR AVE STE 101, MESA, AZ 85206(480) 985-1700(480) 396-3659 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 23, 2026, Jan 15, 2026, Jun 10, 2025 and 1 more (4 updates tracked since 2019).

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About Zaid Alkaissy Md NPPES

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

ZAID ALKAISSY MD (NPI 1285290445) is an individual gastroenterology provider in Mesa, Arizona, licensed in Arizona (73667) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Winchester Medical Center, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1285290445

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameZAID ALKAISSYCredential: MD

Location Address6020 E ARBOR AVE STE 101Mesa, AZ 85206-6102

Mailing Address3260 N Hayden Rd Ste 112Scottsdale, AZ 85251-6650 · (602) 264-9100 · Fax (602) 264-9101

Phone(480) 985-1700

Fax(480) 396-3659

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateMay 14, 2019

Last NPPES UpdateJuly 23, 20264 updates tracked since enumeration

NPPES CertifiedJuly 23, 2026

✔ NPI 1285290445 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in AZ · 73667

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License 73667 (AZ)

6020 E ARBOR AVE STE 101, Mesa, AZ 85206

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health, Blue Cross Blue Shield of Arizona and more.Insurance ›

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

Zaid Alkaissy 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 ID6103153770

PECOS Enrollment IDI20260128003540

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

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

Arizona Digestive Health, PC

13 mi

Gastroenterology

3260 N HAYDEN RD STE 112
Scottsdale, AZ 85251

Reassigned Medicare billing, Arizona enrollment
143 clinicians in this Medicare group

NPI 1992981583 (602) 264-9100

Banner Physician Specialists Arizona LLC

22 mi

Multi-Specialty

2901 N CENTRAL AVE STE 160
Phoenix, AZ 85012

Reassigned Medicare billing, Arizona enrollment
538 clinicians in this Medicare group

NPI 1033730429 (602) 747-4000

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

Hospital Affiliations CMS Care Compare

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

Winchester Medical Center

Acute Care Hospitals · Winchester, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490005

Location1840 Amherst StWinchester, VA 22601 · Winchester City County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85206 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

$127.71 typical visit price

range $55.44 – $168.60

Typical copayment $31.92 (range $13.86 – $42.15)

Most-billed visit code 99204

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

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 5

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

MEREDITH ANGELEE HARDT AG ACNP-BC

Nurse Practitioner (Acute Care)