2026 NPPES data Pediatrics Physician NPI 1548242639 MD
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ZIAD HEMZAWI, MD

Pediatrics Physician in TUCSON, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
113
Medicare Part D claims · 27 beneficiaries · Pediatrics Physician avg: 762
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ZIAD HEMZAWI, MD filed 113 Medicare Part D claims in 2023 as a Pediatrics Physician in TUCSON, Arizona, prescribing 88% generic.

113
Part D claims, 2023
88%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ZIAD HEMZAWI, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

113 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

ZIAD HEMZAWI, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ZIAD HEMZAWI, MD?

Quality data not reported

NPI registry status

Active

Issued 11/15/2005

NPI 1548242639

Primary specialty

Pediatrics Physician

High-volume

80,574 US NPIs in this specialty

Medicare Part D claims

113 85% vs specialty avg

2023 prescription claims

Specialty avg: 762

Specialty distribution in Arizona

How Pediatrics Physician compares to other specialties among Arizona providers

Arizona providers

Pediatrics Physician share within Arizona

1. Pediatrics Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pediatrics Physician share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — Pediatrics Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pediatrics Physician ABMS/AOA estimate

Est. board-certified rate (Pediatrics Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pediatrics Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ZIAD HEMZAWI, MD appears in the CMS NPPES registry as a Pediatrics Physician provider holding MD credentials at 839 W CONGRESS ST, TUCSON, AZ, 85745, with a listed phone of (520) 670-3909. NPI 1548242639 was issued on 11/15/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HEMZAWI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 113 prescription claims written by this provider, covering 27 Medicare beneficiaries and totaling roughly $3K in drug spend, split 12% brand-name and 88% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Pediatrics Physician is a high-volume specialty nationwide, with 80,574 enrolled providers across 56 states and an average of 762 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

839 W CONGRESS ST
TUCSON, AZ 85745

Provider Details

NPI 1548242639
Specialty Pediatrics Physician
Credentials MD
Gender Male
NPI Issued 11/15/2005

Hospital and facility affiliations

Facilities where ZIAD HEMZAWI, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

EL RIO SANTA CRUZ NEIGHBORHOOD HEALTH CENTER INC
TUCSON, AZ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

ZIAD HEMZAWI, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 113 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

113
Total Claims
$3K
Total Drug Cost
27
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
211
Total Day Supply
5,337
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$2K
Generic Drug Cost
$1K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
67.7 years
Avg HCC Risk Score
1.50

Pediatrics Physician Overview

How ZIAD HEMZAWI, MD fits within the Pediatrics Physician landscape nationally.

80,574
Pediatrics Physician Providers in US
56
States with Pediatrics Physician
762
Avg Claims per Provider

ZIAD HEMZAWI, MD's 113 claims are below the specialty average of 762.

Nearby Pediatrics Physician Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as HEMZAWI.

Compare Pediatrics Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ZIAD HEMZAWI, MD's specialty?
ZIAD HEMZAWI, MD specializes in Pediatrics Physician and practices in TUCSON, Arizona. Credentials: MD.
How much does ZIAD HEMZAWI, MD prescribe under Medicare Part D?
In 2023, ZIAD HEMZAWI, MD wrote 113 Medicare Part D claims totaling $3K in drug costs for 27 beneficiaries.
Where is ZIAD HEMZAWI, MD located?
ZIAD HEMZAWI, MD is located at 839 W CONGRESS ST, TUCSON, AZ, 85745. Phone: (520) 670-3909.
What is ZIAD HEMZAWI, MD's NPI number?
ZIAD HEMZAWI, MD's National Provider Identifier (NPI) is 1548242639, issued on 11/15/2005.
Does ZIAD HEMZAWI, MD prescribe more brand-name or generic drugs?
ZIAD HEMZAWI, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $2K in brand drug costs.
How many Pediatrics Physician providers are there in the US?
There are 80,574 Pediatrics Physician providers across 56 states in the US. The average Pediatrics Physician provider writes 762 Medicare Part D claims per year.
Does ZIAD HEMZAWI, MD accept Medicare?
ZIAD HEMZAWI, MD appears in CMS Medicare data with 113 Part D claims and 27 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZIAD HEMZAWI, MD's credentials?
ZIAD HEMZAWI, MD's NPI is 1548242639 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology