Dr. William Doty Farmer, MD
- Medicare services, 2024
- 3,470
- Medicare patients, 2024
- 1,213
- Part D claims, 2024
- 1,865
- MIPS score, 2024
- 80
- Industry payments
- $4,542
- Practice address
- 1314 Belk Blvd, Oxford, MS 38655
- Practice phone
- Call (662) 234-6621
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rayner Surgery Center
Oxford, Mississippi
Find Dr. Farmer'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. William Doty Farmer is an ophthalmologist in Oxford, Mississippi
Dr. Farmer practices at Rayner Surgery Center in Oxford, Mississippi.
Dr. Farmer's NPI, 1902840861, was assigned on June 15, 2006. Dr. Farmer attended University of Mississippi School of Medicine. Dr. Farmer holds Mississippi license 15523.
- NPI
- 1902840861NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385645829
- NPI enumeration date
- June 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (662) 234-6621
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Doty Farmer practices at Rayner Surgery Center in Oxford, Mississippi
Dr. Farmer's primary practice is Rayner Surgery Center, at 1314 Belk Blvd, Oxford, MS 38655 in Lafayette County. The practice phone is (662) 234-6621.
- Rayner Surgery Center1314 Belk Blvd, Oxford, MS 38655 · Lafayette CountyPhone(662) 234-6621
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William Doty Farmer is affiliated with 2 sites of care and 1 medical group
Dr. Farmer's primary practice is Rayner Surgery Center in Oxford, Mississippi. Dmand AI also links Dr. Farmer to 1 group practice or clinic and 1 medical group, each 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. William Doty Farmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Farmer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rayner Surgery Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Doty Farmer is one of 123 ophthalmologists in Mississippi
Ophthalmology is Dr. Farmer's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Farmer is licensed in Mississippi.
Specialties and state licenses
- Ophthalmology, MississippiPrimary
Ophthalmologists near Dr. Farmer
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. William Doty Farmer billed Medicare for 3,470 services in 2024
CMS data shows 3,470 Medicare services from Dr. Farmer across 9 procedure codes in 2024, for 1,213 Medicare patients. Medicare paid $226,015 for them.
Dr. Farmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,9482024: 3,1015%
- Surgery
- 2023: 4772024: 31833%
- Imaging
- 2023: 772024: 5134%
Where Dr. Farmer's Medicare services took place, 2024
- In an office3,15291%
- In a facility3189%
Dr. Farmer compared with the Mississippi median for ophthalmologists, 2024
- Dr. Farmer
- Mississippi median
- Medicare services
- 3,470vs 2,40045% above
- Medicare patients
- 1,213vs 97724% above
- Part D claims
- 1,724vs 1,05264% above
Medians across 136 ophthalmologists in Mississippi with Dmand AI profiles that report each measure.
Dr. Farmer'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. Farmer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Farmer and other ophthalmologists in Mississippi.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Doty Farmer treated 1,213 Medicare patients in 2024, average age 77
CMS counts 1,213 Medicare patients who saw Dr. Farmer in 2024. The largest group is 75 to 84, with 526 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Farmer's median patient age at 72, with 58% women.
Dr. Farmer's Medicare patients by age, 2024
Dr. Farmer's Medicare patients by sex, 2024
- Women76763%
- Men44637%
Chronic conditions among Dr. Farmer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Ischemic heart disease32%
- Diabetes30%
- Atrial fibrillation21%
- Chronic kidney disease20%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Farmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Doty Farmer wrote 1,865 Medicare Part D claims in 2024
In 2024, Dr. Farmer wrote 1,865 Medicare Part D claims for 415 patients. 68% of them were for generic drugs. CMS names the drug for 1,724 of them, across 23 drugs with 11 or more claims each, at $192,511 in total drug cost. In 2023, CMS named 1,626 claims across 21 drugs.
Dr. Farmer's Part D claims by kind of drug, 2024
- Generic1,262 claims68%
- Brand-name603 claims32%
Dr. Farmer'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. Farmer's Part D claims, 2024
- Antibiotics1%25 of 1,865 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: 1,6262024: 1,7246%
Drugs named by CMS: 23 in 2024, 21 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. William Doty Farmer scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Farmer for performance year 2024, reported as part of a group. Dr. Farmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 413 procedures of cataract surgery by Dr. Farmer, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Farmer's MIPS scores, performance year 2024
- 80of 100Final score
- 95.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 37of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Farmer ranks in Medicare procedure volume
- Cataract surgery
- 93rd percentile413 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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. William Doty Farmer received $4,542 in industry payments from 2016 to 2025
CMS Open Payments shows 225 general payments to Dr. Farmer from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Bausch Health Americas, Inc. paid the most, $705.
General payments to Dr. Farmer by program year, 2016 to 2025
General payments to Dr. Farmer by kind, 2016 to 2025
- Food and beverage$4,47499%
- Education$381%
- Entertainment$301%
Companies that paid Dr. Farmer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Doty Farmer graduated from University of Mississippi School of Medicine
Dr. Farmer attended University of Mississippi School of Medicine.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Doty Farmer'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)Clinician Public Reporting: Overall MIPS Performance (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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Doty Farmer
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 Doty Farmer's NPI number?
Dr. William Doty Farmer's NPI number is 1902840861. It was assigned on June 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Doty Farmer?
Dr. William Doty Farmer is an ophthalmologist in Oxford, Mississippi. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. William Doty Farmer practice?
Dr. Farmer practices at 1314 Belk Blvd, Oxford, MS 38655. Dr. Farmer's primary practice is Rayner Surgery Center in Oxford, Mississippi. Dmand AI also links Dr. Farmer to 1 group practice or clinic and 1 medical group.
What is Dr. William Doty Farmer's office phone number?
The practice phone on file for Dr. Farmer is (662) 234-6621.
What is Dr. William Doty Farmer's medical license number?
Dr. Farmer holds Mississippi license 15523.
Does Dr. William Doty Farmer accept Medicare?
Yes. CMS data shows Dr. Farmer billed Medicare for 3,470 services in 2024, and Dr. Farmer accepts Medicare assignment.
What is Dr. William Doty Farmer's MIPS score?
Dr. Farmer's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
How many Medicare patients does Dr. William Doty Farmer see?
CMS counts 1,213 Medicare patients who saw Dr. Farmer in 2024, with an average age of 77.
What services does Dr. William Doty Farmer bill to Medicare?
In 2024, Dr. Farmer's most billed Medicare services were eye exam or test (92014), eye exam or test (92083) and eye exam or test (92133).
Where did Dr. William Doty Farmer go to medical school?
Dr. Farmer attended University of Mississippi School of Medicine.
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What drugs does Dr. William Doty Farmer prescribe most?
In 2024 Medicare Part D data, Dr. Farmer's most prescribed drugs by claims were Latanoprost, Timolol Maleate and Dorzolamide-Timolol.
Has Dr. William Doty Farmer received payments from drug or device companies?
CMS Open Payments shows $4,542 in general payments to Dr. Farmer from 33 companies from 2016 to 2025. The largest total came from Bausch Health Americas, Inc.
How long has Dr. William Doty Farmer been practicing?
Dr. Farmer's NPI was assigned in 2006.
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