Dr. William Daniel Finlayson III, MD
- Medicare services, 2021
- 962
- Part D claims, 2024
- 27
- Industry payments
- $4,015
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 801 North Bay St, Eustis, FL 32726
- Practice phone
- Call (352) 589-6367
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Adventhealth Medical Group - Primary Care - Eustis (North Bay St)
Primary care practice · Eustis, Florida
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Dr. William Daniel Finlayson III is an internist in Eustis, Florida
Dr. Finlayson practices at Adventhealth Medical Group - Primary Care - Eustis (North Bay St) in Eustis, Florida.
Dr. Finlayson's NPI, 1588635064, was assigned on January 31, 2006. Dr. Finlayson graduated from USF Health Morsani College of Medicine in 1978. Dr. Finlayson holds Florida license 038364.
- NPI
- 1588635064NPI Registry (opens in a new tab)
- NPI enumeration date
- January 31, 2006
- NPI status
- Active
- Practice phone
- (352) 589-6367
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Daniel Finlayson III practices at Adventhealth Medical Group - Primary Care - Eustis (North Bay St) in Eustis, Florida
Dr. Finlayson's primary practice is Adventhealth Medical Group - Primary Care - Eustis (North Bay St), at 801 North Bay St, Eustis, FL 32726. The practice phone is (352) 589-6367.
- Adventhealth Medical Group - Primary Care - Eustis (North Bay St)801 North Bay St, Eustis, FL 32726Phone(352) 589-6367
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Daniel Finlayson III is affiliated with 1 site of care and 1 medical group
Dr. Finlayson's primary practice is Adventhealth Medical Group - Primary Care - Eustis (North Bay St) in Eustis, Florida. The medical group on file is AdventHealth Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. William Daniel Finlayson III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Finlayson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventhealth Medical Group - Primary Care - Eustis (North Bay St) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Daniel Finlayson III is one of 9,009 internists in Florida
Internal medicine is Dr. Finlayson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Finlayson is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Finlayson's licenses on file in 2 states: Florida and Alabama.
Specialties and state licenses
- Internal medicine, FloridaPrimary
- Alabama license
Internists near Dr. Finlayson
Counts of internists 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. William Daniel Finlayson III billed Medicare for 962 services in 2021
CMS data shows 962 Medicare services from Dr. Finlayson across 10 procedure codes in 2021. Medicare paid $42,873 for them. Every service was in an office.
Dr. Finlayson's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1,4892021: 63857%
- Drugs given in the office
- 2020: 4042021: 12868%
- Lab and pathology
- 2020: 2452021: 7968%
- Tests and treatments
- 2020: 2812021: 7773%
- Other services
- 2020: 4252021: 4091%
Dr. Finlayson compared with the Florida median for internists, 2021
- Dr. Finlayson
- Florida median
- Medicare services
- 962vs 55573% above
- Part D claims
- 265vs 46643% below
Medians across 8,488 internists in Florida with Dmand AI profiles that report each measure.
Dr. Finlayson's most billed Medicare procedure codes, 2021
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. Finlayson and other internists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Daniel Finlayson III's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Finlayson's median patient age at 76, with 44% women.
Dr. Finlayson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women44%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. William Daniel Finlayson III wrote 27 Medicare Part D claims in 2024
In 2024, Dr. Finlayson wrote 27 Medicare Part D claims. 78% of them were for generic drugs. They cover 13 drugs, with $4,144 in total drug cost. In 2021, CMS named 6,689 claims across 117 drugs.
Dr. Finlayson's Part D claims by kind of drug, 2024
- Generic21 claims78%
- Brand-name and other6 claims22%
Dr. Finlayson's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 6,6892022: 26596%
Drugs named by CMS: 13 in 2022, 117 in 2021.
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
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Dr. William Daniel Finlayson III received $4,015 in industry payments from 2016 to 2020
CMS Open Payments shows 49 general payments to Dr. Finlayson from 11 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $2,085.
General payments to Dr. Finlayson by program year, 2016 to 2020
Companies that paid Dr. Finlayson the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Daniel Finlayson III has 1 award and honors on record
Dmand AI lists 1 award for Dr. Finlayson, most recently CMS Stage 1 2012 in 2012.
Awards and honors for Dr. Finlayson
- 2012
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. William Daniel Finlayson III graduated from USF Health Morsani College of Medicine
Dr. Finlayson graduated from USF Health Morsani College of Medicine in 1978.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. William Daniel Finlayson III accepts plans from 1 insurance carrier
Dr. Finlayson is in network with 1 carrier, including Excellus BlueCross BlueShield. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
Plan types Dr. Finlayson accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. William Daniel Finlayson III'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| 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) |
| 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. William Daniel Finlayson III
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. William Daniel Finlayson III's NPI number?
Dr. William Daniel Finlayson III's NPI number is 1588635064. It was assigned on January 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Daniel Finlayson III?
Dr. William Daniel Finlayson III is an internist in Eustis, Florida. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Daniel Finlayson III practice?
Dr. Finlayson practices at 801 North Bay St, Eustis, FL 32726. Dr. Finlayson's primary practice is Adventhealth Medical Group - Primary Care - Eustis (North Bay St) in Eustis, Florida.
What is Dr. William Daniel Finlayson III's office phone number?
The practice phone on file for Dr. Finlayson is (352) 589-6367.
What is Dr. William Daniel Finlayson III's medical license number?
Dr. Finlayson holds Florida license 038364, one of the licenses on file in 2 states.
Which states has Dr. William Daniel Finlayson III been licensed in?
Dmand AI has state licenses on file for Dr. Finlayson in Florida (1981 to 2027) and Alabama (1978 to 1981).
What medical group is Dr. William Daniel Finlayson III part of?
Dr. Finlayson is linked to AdventHealth Medical Group.
Does Dr. William Daniel Finlayson III accept Medicare?
Yes. CMS data shows Dr. Finlayson billed Medicare for 962 services in 2021.
Is Dr. William Daniel Finlayson III board certified?
Yes. Dr. Finlayson is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. William Daniel Finlayson III bill to Medicare?
In 2021, Dr. Finlayson's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and injected or infused drug (J3301).
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Where did Dr. William Daniel Finlayson III go to medical school?
Dr. Finlayson graduated from USF Health Morsani College of Medicine in 1978.
What drugs does Dr. William Daniel Finlayson III prescribe most?
In 2022 Medicare Part D data, Dr. Finlayson's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. William Daniel Finlayson III received payments from drug or device companies?
CMS Open Payments shows $4,015 in general payments to Dr. Finlayson from 11 companies from 2016 to 2020. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. William Daniel Finlayson III been practicing?
Dr. Finlayson graduated from medical school in 1978, 48 years ago.
What insurance does Dr. William Daniel Finlayson III accept?
Dr. Finlayson is in network with 1 carrier, including Excellus BlueCross BlueShield. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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