NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1164155644 MD
Verify on CMS → Chukwunonso Ezeani, MD
Gastroenterology Physician in Scottsdale, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 17,061 in Gastroenterology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
229
Medicare Part D claims · 88 beneficiaries · Gastroenterology Physician avg: 848
What the federal data shows
Chukwunonso Ezeani, MD filed 229 Medicare Part D claims in 2024 as a Gastroenterology Physician in Scottsdale, Arizona.
- 229
- Part D claims, 2024
- ≥48th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Chukwunonso Ezeani, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1164155644), first enumerated 07/02/2022.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 229 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1164155644 · Gastroenterology Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1164155644
- ENUM-RECENT 2022
- TAX-MID 17K Gastroenterology Physician
- RX-LIGHT 229
- BOOK-THIN 337 in Arizona
- PHOTO-ENUM Christopher Costa, MD · 2022
Chukwunonso Ezeani, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
229 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Chukwunonso Ezeani, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Chukwunonso Ezeani, MD?
Quality data not reportedPrimary specialty
Gastroenterology Physician
Medicare Part D claims
229 73% vs specialty avg
Specialty distribution in Arizona
How Gastroenterology Physician compares to other specialties among Arizona providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Gastroenterology Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1164155644 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/02/2022 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
229
Total Claims
$21K
Total Drug Cost
88
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 392
- Total Day Supply
- 11,184
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 65.7 years
- Avg HCC Risk Score
- 1.77
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 27, 65-74: 50, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 33 |
| Amlodipine Besylate | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Chukwunonso Ezeani, MD fits within the Gastroenterology Physician landscape nationally.
17,061
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
848
Avg Claims per Provider
Chukwunonso Ezeani, MD's 229 claims are below the specialty average of 848.
Nationwide Gastroenterology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ezeani, both outside Arizona so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gastroenterology Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Ezeani.
One of 337 Gastroenterology Physician providers enrolled in Arizona, 5 are shown here.
Dr. Neena Abraham
MD
Scottsdale, AZ
Dr. Avin Aggarwal
M.D.
Tucson, AZ
Dr. Sanjay Ahluwalia
M.D.
Chandler, AZ
Akram Ahmad
MBBS
Scottsdale, AZ
Dr. Bassel Al-Lahham
MD
Phoenix, AZ
Compare Gastroenterology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Chukwunonso Ezeani, MD's specialty? ▼
Chukwunonso Ezeani, MD specializes in Gastroenterology Physician and practices in Scottsdale, Arizona. Credentials: MD.
How much does Chukwunonso Ezeani, MD prescribe under Medicare Part D? ▼
In 2024, Chukwunonso Ezeani, MD wrote 229 Medicare Part D claims totaling $21K in drug costs for 88 beneficiaries.
Where is Chukwunonso Ezeani, MD located? ▼
Chukwunonso Ezeani, MD is located at 13400 E SHEA BLVD, Scottsdale, AZ, 85259. Phone: (480) 301-8000.
What is Chukwunonso Ezeani, MD's NPI number? ▼
Chukwunonso Ezeani, MD's National Provider Identifier (NPI) is 1164155644, issued on 07/02/2022.
How many Gastroenterology Physician providers are there in the US? ▼
There are 17,061 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 848 Medicare Part D claims per year.
What drugs does Chukwunonso Ezeani, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Chukwunonso Ezeani, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chukwunonso Ezeani, MD accept Medicare? ▼
Chukwunonso Ezeani, MD appears in CMS Medicare data with 229 Part D claims and 88 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chukwunonso Ezeani, MD's credentials? ▼
Chukwunonso Ezeani, MD's NPI is 1164155644 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.