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Dr. John Michael Nassif, MD
NPI1982698049PAC ID5597707828
- Medicare services, 2024
- 1,528
- Medicare patients, 2024
- 387
- Part D claims, 2024
- 592
- Publications
- 5
- MIPS score, 2024
- 100
- Practice address
- 1005 Crosspointe Dr, Suite 2, Naples, FL 34110
- Practice phone
- Call (239) 566-5748
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Doctor's Outpatient Surgery Center - Naples
Surgery Center - Medicare-Certified · Naples, Florida
Find Dr. Nassif's professional email, personal email and mobile number
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Dr. John Michael Nassif is an ophthalmologist in Naples, Florida
Dr. Nassif practices at Doctor's Outpatient Surgery Center - Naples in Naples, Florida.
Dr. Nassif's NPI, 1982698049, was assigned on September 6, 2005. Dr. Nassif graduated from Carver College of Medicine in 1984. Dr. Nassif holds Florida license ME66463.
NPI and contact details
- NPI
- 1982698049NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597707828
- NPI enumeration date
- September 6, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (239) 566-5748
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Michael Nassif practices at Doctor's Outpatient Surgery Center - Naples in Naples, Florida
Dr. Nassif's primary practice is Doctor's Outpatient Surgery Center - Naples, at 1005 Crosspointe Dr, Suite 2, Naples, FL 34110. The practice phone is (239) 566-5748.
- Doctor's Outpatient Surgery Center - Naples1005 Crosspointe Dr, Suite 2, Naples, FL 34110Phone(239) 566-5748
Source: Dmand AI Affiliation Data
Dr. John Michael Nassif is affiliated with 4 sites of care and 1 medical group
Dr. Nassif's primary practice is Doctor's Outpatient Surgery Center - Naples in Naples, Florida. Dr. Nassif is also affiliated with NCH Baker Hospital. Dmand AI also links Dr. Nassif to 1 more physician office, 1 group practice or clinic and 1 medical group, each named with a free account.
Doctor's Outpatient Surgery Center - NaplesPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Michael Nassif's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nassif practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Doctor's Outpatient Surgery Center - Naples | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Michael Nassif is one of 1,398 ophthalmologists in Florida
Ophthalmology is Dr. Nassif's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Nassif is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Nassif's licenses on file in 7 states: Florida, California, Iowa, Illinois, Ohio, Pennsylvania and Maryland.
Specialties and state licenses
- Ophthalmology, FloridaPrimary
- California license
- Iowa license
- Illinois license
- Ohio license
- Pennsylvania license
- Maryland license
Clinical focus
Dmand AI lists conjunctivitis, dry eye and eyelid inflammation among the conditions Dr. Nassif treats.
Ophthalmologists near Dr. Nassif
Counts of ophthalmologists 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. John Michael Nassif billed Medicare for 1,528 services in 2024
CMS data shows 1,528 Medicare services from Dr. Nassif across 10 procedure codes in 2024, for 387 Medicare patients. Medicare paid $146,281 for them.
Medicare services, 20241,528
Medicare patients387
Paid by Medicare$146,281
Procedure codes10
Dr. Nassif's Medicare services by type, 2024
- Office and hospital visits888
- Surgery562
- Tests and treatments78
Where Dr. Nassif's Medicare services took place, 2024
- In an office1,48897%
- In a facility403%
Dr. Nassif compared with the Florida median for ophthalmologists, 2024
- Dr. Nassif
- Florida median
- Medicare services
- 1,528vs 1,69910% below
- Medicare patients
- 387vs 55731% below
- Part D claims
- 479vs 81841% below
Medians across 1,345 ophthalmologists in Florida with Dmand AI profiles that report each measure.
Dr. Nassif'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.
Need commercial claims for Dr. Nassif?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nassif and other ophthalmologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Michael Nassif treated 387 Medicare patients in 2024, average age 77
CMS counts 387 Medicare patients who saw Dr. Nassif in 2024. The largest group is 75 to 84, with 180 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nassif's median patient age at 74, with 57% women.
Medicare patients, 2024387
Average age77
Average risk score1.16
Dr. Nassif's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nassif's Medicare patients by sex, 2024
- Women25265%
- Men13535%
Chronic conditions among Dr. Nassif's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis62%
- Ischemic heart disease33%
- Anxiety29%
- Mood disorders25%
- Depression23%
- Diabetes21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nassif's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Michael Nassif wrote 592 Medicare Part D claims in 2024
In 2024, Dr. Nassif wrote 592 Medicare Part D claims for 366 patients. 23% of them were for generic drugs. CMS names the drug for 479 of them, across 4 drugs with 11 or more claims each, at $20,806 in total drug cost.
Part D claims, 2024592
Drugs named by CMS4
Total drug cost$20,806
Part D patients366
Dr. Nassif's Part D claims by kind of drug, 2024
- Generic138 claims23%
- Brand-name454 claims77%
Dr. Nassif'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.
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. John Michael Nassif scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Nassif for performance year 2024, reported as part of a group. Dr. Nassif accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of melanoma (skin cancer) excision by Dr. Nassif, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Nassif's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Nassif ranks in Medicare procedure volume
- Melanoma (skin cancer) excision
- 74th percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Michael Nassif has 5 publications on record
Dmand AI links 5 papers to Dr. Nassif. Dr. Nassif's most frequent co-author is Peter A. Rubin, MD.
Papers5
Dr. Nassif's most frequent co-authors
Recent publications by Dr. Nassif
See who Dr. Nassif researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nassif works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Michael Nassif received $293 in industry payments from 2024 to 2025
CMS Open Payments shows 11 general payments to Dr. Nassif from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Merz North America, Inc. paid the most, $217.
General payments to Dr. Nassif by program year, 2024 to 2025
Companies that paid Dr. Nassif the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Michael Nassif has 1 award and honors on record
Dmand AI lists 1 award for Dr. Nassif, most recently America's Top Ophthalmologists in 2013.
Awards and honors for Dr. Nassif
- 2013
- America's Top Ophthalmologists
Source: Dmand AI Professional Profile Data
Dr. John Michael Nassif graduated from Carver College of Medicine
Dr. Nassif graduated from Carver College of Medicine in 1984.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. John Michael Nassif accepts plans from 16 insurance carriers
Dr. Nassif is in network with 16 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Blue Cross Blue Shield of Massachusetts
- +8 more carriersWith a free account
Plan types Dr. Nassif accepts, by number of carriers
- Medicare12
- PPO11
- HMO9
- POS6
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. John Michael Nassif'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John Michael Nassif
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. John Michael Nassif's NPI number?
Dr. John Michael Nassif's NPI number is 1982698049. It was assigned on September 6, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Michael Nassif?
Dr. John Michael Nassif is an ophthalmologist in Naples, Florida. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. John Michael Nassif practice?
Dr. Nassif practices at 1005 Crosspointe Dr, Suite 2, Naples, FL 34110. Dr. Nassif's primary practice is Doctor's Outpatient Surgery Center - Naples in Naples, Florida. Dmand AI also links Dr. Nassif to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. John Michael Nassif's office phone number?
The practice phone on file for Dr. Nassif is (239) 566-5748.
What is Dr. John Michael Nassif's medical license number?
Dr. Nassif holds Florida license ME66463, one of the licenses on file in 7 states.
Which states has Dr. John Michael Nassif been licensed in?
Dmand AI has state licenses on file for Dr. Nassif in Florida (1994 to 2027), California (since 1988), Iowa (1990 to 2001), Illinois (1995 to 1996), Ohio (1992), Pennsylvania (1989 to 1990) and Maryland (1985 to 1989).
Which hospitals is Dr. John Michael Nassif affiliated with?
Dr. Nassif is affiliated with NCH Baker Hospital.
Does Dr. John Michael Nassif accept Medicare?
Yes. CMS data shows Dr. Nassif billed Medicare for 1,528 services in 2024, and Dr. Nassif accepts Medicare assignment.
What is Dr. John Michael Nassif's MIPS score?
Dr. Nassif's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Michael Nassif see?
CMS counts 387 Medicare patients who saw Dr. Nassif in 2024, with an average age of 77.
Show 9 more questionsShow fewer questions
Is Dr. John Michael Nassif board certified?
Yes. Dr. Nassif is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. John Michael Nassif bill to Medicare?
In 2024, Dr. Nassif's most billed Medicare services were office visit, established patient (99213), surgery: eye (68761) and surgery: eye (68760).
Where did Dr. John Michael Nassif go to medical school?
Dr. Nassif graduated from Carver College of Medicine in 1984.
What drugs does Dr. John Michael Nassif prescribe most?
In 2024 Medicare Part D data, Dr. Nassif's most prescribed drugs by claims were Prednisolone Acetate, Loteprednol Etabonate and Prednisone.
Has Dr. John Michael Nassif received payments from drug or device companies?
CMS Open Payments shows $293 in general payments to Dr. Nassif from 3 companies from 2024 to 2025. The largest total came from Merz North America, Inc.
How long has Dr. John Michael Nassif been practicing?
Dr. Nassif graduated from medical school in 1984, 42 years ago.
Does Dr. John Michael Nassif do research?
Dmand AI links 5 publications to Dr. Nassif.
Who does Dr. John Michael Nassif publish with?
Dr. Nassif's most frequent co-authors are Peter A. Rubin, MD (1 shared paper).
What insurance does Dr. John Michael Nassif accept?
Dr. Nassif is in network with 16 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 12. Check the plan with the practice before a visit.
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