Dr. Adam Irwin Riker, MD
- Medicare services, 2024
- 459
- Medicare patients, 2024
- 176
- Part D claims, 2024
- 23
- Hospital affiliations
- 2
- Industry payments
- $24,401
- Practice address
- 2776 Cleveland Ave, Fort Myers, FL 33901
- Practice phone
- Call (239) 343-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Riker's professional email, personal email and mobile number
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Dr. Adam Irwin Riker is a surgical oncologist in Fort Myers, Florida
Dr. Riker practices at Lee Memorial Hospital in Fort Myers, Florida, part of Lee Health System.
Dr. Riker's NPI, 1194773069, was assigned on May 4, 2006. Dr. Riker holds Louisiana license MD.202666.
- NPI
- 1194773069NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709816390
- NPI enumeration date
- May 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (239) 343-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Adam Irwin Riker practices at Lee Memorial Hospital in Fort Myers, Florida
Dr. Riker's primary practice is Lee Memorial Hospital, at 2776 Cleveland Ave, Fort Myers, FL 33901 in Lee County. The practice phone is (239) 343-5000.
- Lee Memorial Hospital2776 Cleveland Ave, Fort Myers, FL 33901 · Lee CountyPhone(239) 343-5000
Source: Dmand AI Affiliation Data
Dr. Adam Irwin Riker is affiliated with 3 sites of care and 2 medical groups
Dr. Riker's primary practice is Lee Memorial Hospital in Fort Myers, Florida, part of Lee Health System. Dr. Riker is also affiliated with Community Hospital North. The medical group on file is GenesisCare. Dmand AI also links Dr. Riker to 1 more group practice or clinic 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. Adam Irwin Riker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riker practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lee Memorial Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Lee Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Adam Irwin Riker is one of 132 surgical oncologists in Florida
Surgical oncology is Dr. Riker's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dr. Riker is licensed in Louisiana.
Specialties and state licenses
- Surgical oncology, LouisianaPrimary
Surgical oncologists near Dr. Riker
Counts of surgical oncologists 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. Adam Irwin Riker billed Medicare for 459 services in 2024
CMS data shows 459 Medicare services from Dr. Riker across 12 procedure codes in 2024, for 176 Medicare patients. Medicare paid $67,211 for them.
Dr. Riker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1652024: 24146%
- Surgery
- 2023: 272024: 218707%
Where Dr. Riker's Medicare services took place, 2024
- In an office24153%
- In a facility21847%
Dr. Riker compared with the Florida median for surgical oncologists, 2024
- Dr. Riker
- Florida median
- Medicare services
- 459vs 1832.5 times
- Medicare patients
- 176vs 11060% above
- Part D claims
- 11vs 3266% below
Medians across 126 surgical oncologists in Florida with Dmand AI profiles that report each measure.
Dr. Riker'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. Riker and other surgical oncologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Adam Irwin Riker treated 176 Medicare patients in 2024, average age 75
CMS counts 176 Medicare patients who saw Dr. Riker in 2024. The largest group is 65 to 74, with 84 patients. 75% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Riker's median patient age at 67, with 51% women.
Dr. Riker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Riker's Medicare patients by sex, 2024
- Women10258%
- Men7442%
Chronic conditions among Dr. Riker's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
- Arthritis46%
- Cancer44%
- Ischemic heart disease31%
- Atrial fibrillation20%
- Osteoporosis20%
- Chronic kidney disease19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Riker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Adam Irwin Riker wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Riker wrote 23 Medicare Part D claims for 14 patients. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $78 in total drug cost. In 2022, CMS named 11 claims across 1 drug.
Dr. Riker'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. Riker's Part D claims, 2024
- Antibiotics48%11 of 23 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 112024: 11No change
Drugs named by CMS: 1 in 2024, 1 in 2022.
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. Adam Irwin Riker ranks in the 78th percentile for melanoma (skin cancer) excision in Medicare
Dr. Riker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 25 procedures of melanoma (skin cancer) excision by Dr. Riker, more than 78% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Riker ranks in Medicare procedure volume
- Melanoma (skin cancer) excision
- 78th percentile25 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Adam Irwin Riker received $24,401 in industry payments from 2016 to 2024
CMS Open Payments shows 77 general payments to Dr. Riker from 22 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 44% of the total. Merck Sharp & Dohme Corporation paid the most, $16,848.
General payments to Dr. Riker by program year, 2016 to 2024
General payments to Dr. Riker by kind, 2016 to 2024
- Travel and lodging$10,77644%
- Speaker and faculty fees$6,50027%
- Consulting fees$3,80016%
- Food and beverage$2,97312%
- Entertainment$3521%
Companies that paid Dr. Riker the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Adam Irwin Riker'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)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. Adam Irwin Riker
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. Adam Irwin Riker's NPI number?
Dr. Adam Irwin Riker's NPI number is 1194773069. It was assigned on May 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Adam Irwin Riker?
Dr. Adam Irwin Riker is a surgical oncologist in Fort Myers, Florida. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).
Where does Dr. Adam Irwin Riker practice?
Dr. Riker practices at 2776 Cleveland Ave, Fort Myers, FL 33901. Dr. Riker's primary practice is Lee Memorial Hospital in Fort Myers, Florida, part of Lee Health System. Dmand AI also links Dr. Riker to 1 group practice or clinic and 1 medical group.
What is Dr. Adam Irwin Riker's office phone number?
The practice phone on file for Dr. Riker is (239) 343-5000.
What is Dr. Adam Irwin Riker's medical license number?
Dr. Riker holds Louisiana license MD.202666.
Which hospitals is Dr. Adam Irwin Riker affiliated with?
Dr. Riker practices at Lee Memorial Hospital in Fort Myers, Florida. Dr. Riker is also affiliated with Community Hospital North.
What medical group is Dr. Adam Irwin Riker part of?
Dr. Riker is linked to GenesisCare. Dmand AI links Dr. Riker to 1 more medical group.
Does Dr. Adam Irwin Riker accept Medicare?
Yes. CMS data shows Dr. Riker billed Medicare for 459 services in 2024, and Dr. Riker accepts Medicare assignment.
How many Medicare patients does Dr. Adam Irwin Riker see?
CMS counts 176 Medicare patients who saw Dr. Riker in 2024, with an average age of 75.
What services does Dr. Adam Irwin Riker bill to Medicare?
In 2024, Dr. Riker's most billed Medicare services were office visit, new patient (99205), office visit, established patient (99212) and surgery: skin and soft tissue (11606).
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What drugs does Dr. Adam Irwin Riker prescribe most?
In 2024 Medicare Part D data, Dr. Riker's most prescribed drugs by claims were Ciprofloxacin HCl.
Has Dr. Adam Irwin Riker received payments from drug or device companies?
CMS Open Payments shows $24,401 in general payments to Dr. Riker from 22 companies from 2016 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Adam Irwin Riker been practicing?
Dr. Riker graduated from medical school in 1994, 32 years ago.
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