Zaid Alkaissy, MD
NPI 1285290445 · Internal Medicine Physician · Mesa, AZ
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zaid Alkaissy, MD is a Internal Medicine Physician provider in Mesa, AZ (NPI 1285290445).
Provider details
- NPI number
- 1285290445
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 73667 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Omeprazole | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$343 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 190 Campus Blvd Ste 300Winchester, VA 22601-2872Phone: (540) 667-1244
Registry dates
- Enumerated
- 2019-05-14
- Last updated
- 2026-01-15
- Certified
- 2026-01-15
Frequently asked questions
- What is Zaid Alkaissy's NPI number?
- Zaid Alkaissy's National Provider Identifier (NPI) is 1285290445, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zaid Alkaissy's specialty?
- Zaid Alkaissy is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zaid Alkaissy located?
- Zaid Alkaissy's practice location on file with NPPES is 6020 E Arbor Ave Ste 101, Mesa, AZ 85206-6102.
- What is Zaid Alkaissy's phone number?
- The practice phone number listed in the NPPES registry for Zaid Alkaissy is (480) 985-1700.
- Does Zaid Alkaissy accept Medicare?
- Zaid Alkaissy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zaid Alkaissy's NPI active?
- Yes — Zaid Alkaissy's NPI (1285290445) is active in the NPPES registry as of the last update on 2026-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.