Dr. Nadim T. Zyadeh, MD
- Medicare services, 2024
- 109
- Medicare patients, 2024
- 69
- Part D claims, 2024
- 1,170
- Hospital affiliations
- 1
- Industry payments
- $4,248
- Practice address
- 5815 N Black Canyon Hwy, Phoenix, AZ 85015
- Practice phone
- Call (602) 973-6666
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Adult Gastroenterology
Phoenix, Arizona
Find Dr. Zyadeh's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Nadim T. Zyadeh is a gastroenterologist in Phoenix, Arizona
Dr. Zyadeh practices at Adult Gastroenterology in Phoenix, Arizona.
Dr. Zyadeh's NPI, 1609877935, was assigned on August 9, 2005. Dr. Zyadeh holds Arizona license 30881.
- NPI
- 1609877935NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911092960
- NPI enumeration date
- August 9, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (602) 973-6666
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nadim T. Zyadeh practices at Adult Gastroenterology in Phoenix, Arizona
Dr. Zyadeh's primary practice is Adult Gastroenterology, at 5815 N Black Canyon Hwy, Phoenix, AZ 85015 in Maricopa County. The practice phone is (602) 973-6666.
- Adult Gastroenterology5815 N Black Canyon Hwy, Phoenix, AZ 85015 · Maricopa CountyPhone(602) 973-6666
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nadim T. Zyadeh is affiliated with 3 sites of care
Dr. Zyadeh's primary practice is Adult Gastroenterology in Phoenix, Arizona. Dr. Zyadeh is also affiliated with St. David's Round Rock Medical Center. Dmand AI also links Dr. Zyadeh to 1 more physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nadim T. Zyadeh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zyadeh practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adult Gastroenterology | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nadim T. Zyadeh is one of 380 gastroenterologists in Arizona
Gastroenterology is Dr. Zyadeh's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Zyadeh is licensed in Arizona.
Specialties and state licenses
- Gastroenterology, ArizonaPrimary
Gastroenterologists near Dr. Zyadeh
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nadim T. Zyadeh billed Medicare for 109 services in 2024
CMS data shows 109 Medicare services from Dr. Zyadeh across 5 procedure codes in 2024, for 69 Medicare patients. Medicare paid $10,401 for them.
Dr. Zyadeh's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1112024: 8325%
- Surgery
- 2023: 162024: 2663%
Where Dr. Zyadeh's Medicare services took place, 2024
- In an office8376%
- In a facility2624%
Dr. Zyadeh compared with the Arizona median for gastroenterologists, 2024
- Dr. Zyadeh
- Arizona median
- Medicare services
- 109vs 50879% below
- Medicare patients
- 69vs 31978% below
- Part D claims
- 1,049vs 3103.4 times
Medians across 369 gastroenterologists in Arizona with Dmand AI profiles that report each measure.
Dr. Zyadeh's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zyadeh and other gastroenterologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nadim T. Zyadeh treated 69 Medicare patients in 2024, average age 68
CMS counts 69 Medicare patients who saw Dr. Zyadeh in 2024. The largest group is 65 to 74, with 38 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 70% are also on Medicaid. Their average risk score is 1.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Zyadeh's median patient age at 57, with 57% women.
Dr. Zyadeh's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zyadeh's Medicare patients by sex, 2024
- Women3855%
- Men3145%
Chronic conditions among Dr. Zyadeh's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes48%
- Arthritis42%
- Chronic kidney disease26%
- Anxiety25%
- Ischemic heart disease25%
- Mood disorders23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zyadeh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nadim T. Zyadeh wrote 1,170 Medicare Part D claims in 2024
In 2024, Dr. Zyadeh wrote 1,170 Medicare Part D claims for 437 patients. 78% of them were for generic drugs. CMS names the drug for 1,049 of them, across 14 drugs with 11 or more claims each, at $183,934 in total drug cost. In 2023, CMS named 912 claims across 13 drugs.
Dr. Zyadeh's Part D claims by kind of drug, 2024
- Generic909 claims78%
- Brand-name261 claims22%
Dr. Zyadeh's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Zyadeh's Part D claims, 2024
- Antibiotics3%39 of 1,170 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9122024: 1,04915%
Drugs named by CMS: 14 in 2024, 13 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Nadim T. Zyadeh ranks in the 48th percentile for colonoscopy in Medicare
Dr. Zyadeh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zyadeh as offering telehealth. CMS counts 21 procedures of colonoscopy by Dr. Zyadeh, more than 48% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Zyadeh ranks in Medicare procedure volume
- Colonoscopy
- 48th percentile21 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 47th percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Nadim T. Zyadeh received $4,248 in industry payments from 2016 to 2025
CMS Open Payments shows 210 general payments to Dr. Zyadeh from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Gilead Sciences, Inc. paid the most, $1,201.
General payments to Dr. Zyadeh by program year, 2016 to 2025
General payments to Dr. Zyadeh by kind, 2016 to 2025
- Food and beverage$4,22099%
- Education$281%
Companies that paid Dr. Zyadeh the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nadim T. Zyadeh's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Nadim T. Zyadeh
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nadim T. Zyadeh's NPI number?
Dr. Nadim T. Zyadeh's NPI number is 1609877935. It was assigned on August 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Nadim T. Zyadeh?
Dr. Nadim T. Zyadeh is a gastroenterologist in Phoenix, Arizona. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Nadim T. Zyadeh practice?
Dr. Zyadeh practices at 5815 N Black Canyon Hwy, Phoenix, AZ 85015. Dr. Zyadeh's primary practice is Adult Gastroenterology in Phoenix, Arizona. Dmand AI also links Dr. Zyadeh to 1 physician office.
What is Dr. Nadim T. Zyadeh's office phone number?
The practice phone on file for Dr. Zyadeh is (602) 973-6666.
What is Dr. Nadim T. Zyadeh's medical license number?
Dr. Zyadeh holds Arizona license 30881.
Which hospitals is Dr. Nadim T. Zyadeh affiliated with?
Dr. Zyadeh is affiliated with St. David's Round Rock Medical Center.
Does Dr. Nadim T. Zyadeh accept Medicare?
Yes. CMS data shows Dr. Zyadeh billed Medicare for 109 services in 2024, and Dr. Zyadeh accepts Medicare assignment.
Does Dr. Nadim T. Zyadeh offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zyadeh as offering telehealth services.
How many Medicare patients does Dr. Nadim T. Zyadeh see?
CMS counts 69 Medicare patients who saw Dr. Zyadeh in 2024, with an average age of 68.
What services does Dr. Nadim T. Zyadeh bill to Medicare?
In 2024, Dr. Zyadeh's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99203) and office visit, new patient (99204).
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What drugs does Dr. Nadim T. Zyadeh prescribe most?
In 2024 Medicare Part D data, Dr. Zyadeh's most prescribed drugs by claims were Peg 3350-Electrolyte, Omeprazole and Pantoprazole Sodium.
Has Dr. Nadim T. Zyadeh received payments from drug or device companies?
CMS Open Payments shows $4,248 in general payments to Dr. Zyadeh from 26 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Nadim T. Zyadeh been practicing?
Dr. Zyadeh graduated from medical school in 1996, 30 years ago.
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