Dr. Merrit Fawzi Gadallah, MD
- Medicare services, 2024
- 1,078
- Medicare patients, 2024
- 368
- Part D claims, 2024
- 3,034
- MIPS score, 2024
- 75
- Hospital affiliations
- 3
- Practice address
- 4529 Executive Dr, Naples, FL 34119
- Practice phone
- Call (239) 566-7180
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Naples Dialysis Center
Dialysis Center - Independent · Naples, Florida
Find Dr. Gadallah'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. Merrit Fawzi Gadallah is a nephrologist in Naples, Florida
Dr. Gadallah practices at Naples Dialysis Center in Naples, Florida.
Dr. Gadallah's NPI, 1871531319, was assigned on June 4, 2006. Dr. Gadallah graduated from Garyounis University Faculty of Medicine in 1979. Dr. Gadallah holds Florida license ME72275.
- NPI
- 1871531319NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799681987
- NPI enumeration date
- June 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (239) 566-7180
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Merrit Fawzi Gadallah practices at Naples Dialysis Center in Naples, Florida
Dr. Gadallah's primary practice is Naples Dialysis Center, at 4529 Executive Dr, Naples, FL 34119 in Collier County. The practice phone is (239) 566-7180.
- Naples Dialysis Center4529 Executive Dr, Naples, FL 34119 · Collier CountyPhone(239) 566-7180
Source: Dmand AI Affiliation Data
Dr. Merrit Fawzi Gadallah is affiliated with 8 sites of care and 2 medical groups
Dr. Gadallah's primary practice is Naples Dialysis Center in Naples, Florida. Dr. Gadallah is also affiliated with NCH Baker Hospital. The medical group on file is Nephrology & Hypertension Specialists, Inc. Dmand AI also links Dr. Gadallah to 2 more hospitals, 2 group practices and clinics, 1 dialysis center, 1 home health agency and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Merrit Fawzi Gadallah's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gadallah practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Naples Dialysis Center | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Merrit Fawzi Gadallah is one of 917 nephrologists in Florida
Nephrology is Dr. Gadallah's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Gadallah is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Gadallah's licenses on file in 3 states: Florida, California and Louisiana.
Specialties and state licenses
- Nephrology, FloridaPrimary
- California license
- Louisiana license
Clinical focus
Dmand AI lists acute kidney failure, chronic kidney disease, gout, kidney cysts and parathyroid gland disorder among the conditions Dr. Gadallah treats.
Nephrologists near Dr. Gadallah
Counts of nephrologists 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. Merrit Fawzi Gadallah billed Medicare for 1,078 services in 2024
CMS data shows 1,078 Medicare services from Dr. Gadallah across 9 procedure codes in 2024, for 368 Medicare patients. Medicare paid $118,124 for them. Every service was in an office.
Dr. Gadallah's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7442024: 61817%
- Surgery
- 2023: 2782024: 22619%
- Tests and treatments
- 2023: 1662024: 13916%
- Other services
- 2023: 922024: 953%
Dr. Gadallah compared with the Florida median for nephrologists, 2024
- Dr. Gadallah
- Florida median
- Medicare services
- 1,078vs 1,49028% below
- Medicare patients
- 368vs 387Close to median
- Part D claims
- 2,571vs 9342.8 times
Medians across 882 nephrologists in Florida with Dmand AI profiles that report each measure.
Dr. Gadallah'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. Gadallah and other nephrologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Merrit Fawzi Gadallah treated 368 Medicare patients in 2024, average age 78
CMS counts 368 Medicare patients who saw Dr. Gadallah in 2024. The largest group is 75 to 84, with 175 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 2.37, 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. Gadallah's median patient age at 78, with 39% women.
Dr. Gadallah's Medicare patients by age, 2024
Dr. Gadallah's Medicare patients by sex, 2024
- Women11732%
- Men25168%
Chronic conditions among Dr. Gadallah's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease73%
- Arthritis52%
- Ischemic heart disease48%
- Diabetes35%
- Atrial fibrillation29%
- Cancer27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gadallah's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women39%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Merrit Fawzi Gadallah wrote 3,034 Medicare Part D claims in 2024
In 2024, Dr. Gadallah wrote 3,034 Medicare Part D claims for 318 patients. 89% of them were for generic drugs. CMS names the drug for 2,571 of them, across 58 drugs with 11 or more claims each, at $212,894 in total drug cost. In 2023, CMS named 2,281 claims across 58 drugs.
Dr. Gadallah's Part D claims by kind of drug, 2024
- Generic2,715 claims89%
- Brand-name and other319 claims11%
Dr. Gadallah'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. Gadallah's Part D claims, 2024
- Opioids0%13 of 3,034 claims
- Antibiotics3%106 of 3,034 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: 2,2812024: 2,57113%
Drugs named by CMS: 58 in 2024, 58 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. Merrit Fawzi Gadallah scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Gadallah for performance year 2024, reported individually. Dr. Gadallah accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gadallah as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Merrit Fawzi Gadallah received $2,031 in industry payments from 2018 to 2025
CMS Open Payments shows 112 general payments to Dr. Gadallah from 17 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 91% of the total. AstraZeneca Pharmaceuticals LP paid the most, $340.
General payments to Dr. Gadallah by program year, 2018 to 2025
General payments to Dr. Gadallah by kind, 2018 to 2025
- Food and beverage$1,85691%
- Education$1759%
Companies that paid Dr. Gadallah the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Merrit Fawzi Gadallah graduated from Garyounis University Faculty of Medicine
Dr. Gadallah graduated from Garyounis University Faculty of Medicine in 1979.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Merrit Fawzi Gadallah accepts plans from 14 insurance carriers
Dr. Gadallah is in network with 14 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- Cigna
- Elevance
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- +6 more carriersWith a free account
Plan types Dr. Gadallah accepts, by number of carriers
- Medicare11
- HMO9
- PPO9
- POS4
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Merrit Fawzi Gadallah'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Merrit Fawzi Gadallah
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. Merrit Fawzi Gadallah's NPI number?
Dr. Merrit Fawzi Gadallah's NPI number is 1871531319. It was assigned on June 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Merrit Fawzi Gadallah?
Dr. Merrit Fawzi Gadallah is a nephrologist in Naples, Florida. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Merrit Fawzi Gadallah practice?
Dr. Gadallah practices at 4529 Executive Dr, Naples, FL 34119. Dr. Gadallah's primary practice is Naples Dialysis Center in Naples, Florida. Dmand AI also links Dr. Gadallah to 2 hospitals, 2 group practices and clinics, 1 dialysis center, 1 home health agency and 1 medical group.
What is Dr. Merrit Fawzi Gadallah's office phone number?
The practice phone on file for Dr. Gadallah is (239) 566-7180.
What is Dr. Merrit Fawzi Gadallah's medical license number?
Dr. Gadallah holds Florida license ME72275, one of the licenses on file in 3 states.
Which states has Dr. Merrit Fawzi Gadallah been licensed in?
Dmand AI has state licenses on file for Dr. Gadallah in Florida (1996 to 2026), California (since 1984) and Louisiana (1991 to 2000).
Which hospitals is Dr. Merrit Fawzi Gadallah affiliated with?
Dr. Gadallah is affiliated with NCH Baker Hospital. Dmand AI links Dr. Gadallah to 2 more hospitals.
What medical group is Dr. Merrit Fawzi Gadallah part of?
Dr. Gadallah is linked to Nephrology & Hypertension Specialists, Inc. Dmand AI links Dr. Gadallah to 1 more medical group.
Does Dr. Merrit Fawzi Gadallah accept Medicare?
Yes. CMS data shows Dr. Gadallah billed Medicare for 1,078 services in 2024, and Dr. Gadallah accepts Medicare assignment.
Does Dr. Merrit Fawzi Gadallah offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gadallah as offering telehealth services.
Show 9 more questionsShow fewer questions
What is Dr. Merrit Fawzi Gadallah's MIPS score?
Dr. Gadallah's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Merrit Fawzi Gadallah see?
CMS counts 368 Medicare patients who saw Dr. Gadallah in 2024, with an average age of 78.
Is Dr. Merrit Fawzi Gadallah board certified?
Yes. Dr. Gadallah is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Merrit Fawzi Gadallah bill to Medicare?
In 2024, Dr. Gadallah's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and office visit, established patient (99215).
Where did Dr. Merrit Fawzi Gadallah go to medical school?
Dr. Gadallah graduated from Garyounis University Faculty of Medicine in 1979.
What drugs does Dr. Merrit Fawzi Gadallah prescribe most?
In 2024 Medicare Part D data, Dr. Gadallah's most prescribed drugs by claims were Amlodipine Besylate, Calcitriol and Rosuvastatin Calcium.
Has Dr. Merrit Fawzi Gadallah received payments from drug or device companies?
CMS Open Payments shows $2,031 in general payments to Dr. Gadallah from 17 companies from 2018 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Merrit Fawzi Gadallah been practicing?
Dr. Gadallah graduated from medical school in 1979, 47 years ago.
What insurance does Dr. Merrit Fawzi Gadallah accept?
Dr. Gadallah is in network with 14 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.
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