Dr. David Larson Demill, MD

  • Salt Lake City, UT
  • Cornea and external diseases specialist physician
NPI1366783631PAC ID6204131618
Medicare services, 2024
1,498
Medicare patients, 2024
629
Part D claims, 2024
3,017
Publications
10
Hospital affiliations
2
Practice address
389 S. 900 E., Salt Lake City, UT 84102
Practice phone
Call (833) 626-4666
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Salt Lake Clinic - Mammography

Mammography / Breast Imaging Center · Salt Lake City, Utah

See all 8 affiliations

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Dr. David Larson Demill is a cornea and external diseases specialist physician in Salt Lake City, Utah

Dr. Demill practices at Salt Lake Clinic - Mammography in Salt Lake City, Utah.

Dr. Demill's NPI, 1366783631, was assigned on March 11, 2013. Dr. Demill graduated from Spencer Fox Eccles School of Medicine in 2012. Dr. Demill's North Dakota license number on file is 15521.

NPI and contact details
Medicare PAC ID
6204131618
NPI enumeration date
March 11, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(833) 626-4666
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
40
Medical school graduation
2012

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. David Larson Demill practices at Salt Lake Clinic - Mammography in Salt Lake City, Utah

Dr. Demill's primary practice is Salt Lake Clinic - Mammography, at 389 S. 900 E., Salt Lake City, UT 84102. The practice phone is (833) 626-4666.

  • Salt Lake Clinic - Mammography
    389 S. 900 E., Salt Lake City, UT 84102Phone(833) 626-4666

Source: Dmand AI Affiliation Data

Dr. David Larson Demill is affiliated with 6 sites of care and 2 medical groups

Dr. Demill's primary practice is Salt Lake Clinic - Mammography in Salt Lake City, Utah. Dr. Demill is also affiliated with St. Mark's Hospital. The medical group on file is Intermountain Health. Dmand AI also links Dr. Demill to 1 more hospital, 1 breast imaging center, 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group, each named with a free account.

See all 8 affiliations for Dr. Demill

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. David Larson Demill's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Demill practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Salt Lake Clinic - MammographyAvailable with a free account
+5 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. David Larson Demill is one of 5 corneas and external diseases specialist physicians in Utah

Cornea and external diseases specialist is Dr. Demill's primary specialty in the NPI Registry, under taxonomy code 207WX0120X. Dr. Demill is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Demill's licenses on file in 5 states: North Dakota, Utah, Indiana, Oregon and Michigan.

Specialties and state licenses

  • Cornea and external diseases specialist, North DakotaPrimaryLicense 15521 · 2019 to 2020 · taxonomy 207WX0120X
  • Utah licenseLicense 10215714-8905 · 2017 to 2026
  • Indiana licenseLicense 01081680A · 2019
  • Oregon license2016 to 2019
  • Michigan license2013 to 2016

Clinical focus

Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eyelid inflammation and glaucoma among the conditions Dr. Demill treats.

Corneas and external diseases specialist physicians near Dr. Demill

Counts of corneas and external diseases specialist physicians with a Dmand AI profile, by place and practice. Each opens the list.

5corneas and external diseases specialist physicians in Utah
3corneas and external diseases specialist physicians in Salt Lake City

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. David Larson Demill billed Medicare for 1,498 services in 2024

CMS data shows 1,498 Medicare services from Dr. Demill across 12 procedure codes in 2024, for 629 Medicare patients. Medicare paid $169,261 for them.

Medicare services, 20241,498
Medicare patients629
Paid by Medicare$169,261
Procedure codes12

Dr. Demill's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 7552024: 7631%
Office and hospital visits
2023: 4622024: 4591%
Surgery
2023: 2752024: 276No change

Where Dr. Demill's Medicare services took place, 2024

  • In an office1,27285%
  • In a facility22615%

Dr. Demill'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.

See all procedures by Dr. Demill

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Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data

Dr. David Larson Demill treated 629 Medicare patients in 2024, average age 75

CMS counts 629 Medicare patients who saw Dr. Demill in 2024. The largest group is 65 to 74, with 311 patients. 68% of them have high cholesterol, and 65% have high blood pressure. 5% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Demill's median patient age at 72, with 56% women.

Medicare patients, 2024629
Average age75
Average risk score1.07
Also on Medicaid5%

Dr. Demill's Medicare patients by age, 2024

Dr. Demill's Medicare patients by sex, 2024

  • Women35556%
  • Men27444%

Chronic conditions among Dr. Demill's Medicare patients, 2024

  1. High cholesterol68%
  2. High blood pressure65%
  3. Arthritis40%
  4. Diabetes32%
  5. Chronic kidney disease24%
  6. Mood disorders23%
  7. Ischemic heart disease22%
  8. Depression21%

Share of Medicare patients with each condition. A patient can have several.

Dr. Demill'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

  • Women56%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. David Larson Demill wrote 3,017 Medicare Part D claims in 2024

In 2024, Dr. Demill wrote 3,017 Medicare Part D claims for 698 patients. 54% of them were for generic drugs. CMS names the drug for 2,915 of them, across 21 drugs with 11 or more claims each, at $200,384 in total drug cost. In 2023, CMS named 2,657 claims across 22 drugs.

Part D claims, 20243,017
Drugs named by CMS21
Total drug cost$200,384
Part D patients698

Dr. Demill's Part D claims by kind of drug, 2024

  • Generic1,628 claims54%
  • Brand-name1,389 claims46%

Dr. Demill'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. Demill's Part D claims, 2024

  • Antibiotics5%142 of 3,017 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: 2,6572024: 2,91510%

Drugs named by CMS: 21 in 2024, 22 in 2023.

See all prescribing by Dr. Demill

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. David Larson Demill ranks in the 94th percentile for cataract surgery in Medicare

Dr. Demill accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 434 procedures of cataract surgery by Dr. Demill, more than 94% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Demill ranks in Medicare procedure volume

Cataract surgery
94th percentile434 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. David Larson Demill has 10 publications on record

Dmand AI links 10 papers to Dr. Demill, published from 2011 to 2015. 2011 was the busiest year, with 2. The most frequent topics are Antihypertensive Agents, Intraocular Pressure and Cell Count. Dr. Demill has published most often in Clin Ophthalmol. Dr. Demill's most frequent co-authors are Lindsay Nelson, DO, Barbara M. Wirostko, MD and Maylon Hsu, MD.

Papers10
Years published2011 to 2015

Dr. Demill's papers by year, 2011 to 2015

Topics Dr. Demill writes about most

  • Antihypertensive Agents
  • Intraocular Pressure
  • Cell Count
  • Descemet Stripping Endothelial Keratoplasty
  • Glaucoma, Open-Angle
  • Microscopy, Confocal
  • Ocular Hypertension
  • Tissue and Organ Harvesting

Dr. Demill's most frequent co-authors

Recent publications by Dr. Demill

See all 10 publications and co-authors

See who Dr. Demill researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Demill works with, so you can find a warm path to the right corneas and external diseases specialist physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. David Larson Demill received $2,064 in industry payments from 2017 to 2025

CMS Open Payments shows 37 general payments to Dr. Demill from 15 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 98% of the total. Johnson & Johnson Surgical Vision, Inc. paid the most, $469.

General payments to Dr. Demill by program year, 2017 to 2025

General payments to Dr. Demill by kind, 2017 to 2025

$2.1Kin total
  • Food and beverage$2,02098%
  • Education$241%
  • Gifts$191%

Companies that paid Dr. Demill the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Demill

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. David Larson Demill has 4 awards and honors on record

Dmand AI lists 4 awards for Dr. Demill, most recently Alpha Omega Alpha in 2012.

Awards and honors for Dr. Demill

  1. 2012
    • Alpha Omega Alpha
  2. Undated
    • Eagle Scout
    • Member
    • Presidential Scholarship

Source: Dmand AI Professional Profile Data

Dr. David Larson Demill graduated from Spencer Fox Eccles School of Medicine

Dr. Demill graduated from Spencer Fox Eccles School of Medicine in 2012. Dr. Demill is a member of AOA and AAO.

  1. Medical schoolSpencer Fox Eccles School of Medicine
  2. Board certified in ophthalmologyAmerican Board of Ophthalmology

Source: Dmand AI Professional Profile Data

Dr. David Larson Demill accepts plans from 16 insurance carriers

Dr. Demill is in network with 16 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Elevance
  • Aetna
  • United Healthcare
  • HCSC
  • Alliant Health Plans
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • +8 more carriersWith a free account

Plan types Dr. Demill accepts, by number of carriers

  1. PPO11
  2. Medicare9
  3. HMO8
  4. POS4
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. David Larson Demill's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. David Larson Demill

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. David Larson Demill's NPI number?

Dr. David Larson Demill's NPI number is 1366783631. It was assigned on March 11, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. David Larson Demill?

Dr. David Larson Demill is a cornea and external diseases specialist physician in Salt Lake City, Utah. The primary specialty in the NPI Registry is Cornea and External Diseases Specialist Physician (taxonomy code 207WX0120X).

Where does Dr. David Larson Demill practice?

Dr. Demill practices at 389 S. 900 E., Salt Lake City, UT 84102. Dr. Demill's primary practice is Salt Lake Clinic - Mammography in Salt Lake City, Utah. Dmand AI also links Dr. Demill to 1 hospital, 1 breast imaging center, 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group.

What is Dr. David Larson Demill's office phone number?

The practice phone on file for Dr. Demill is (833) 626-4666.

What is Dr. David Larson Demill's medical license number?

Dr. Demill's North Dakota license number on file is 15521, one of the licenses on file in 5 states.

Which states has Dr. David Larson Demill been licensed in?

Dmand AI has state licenses on file for Dr. Demill in North Dakota (2019 to 2020), Utah (2017 to 2026), Indiana (2019), Oregon (2016 to 2019) and Michigan (2013 to 2016).

Which hospitals is Dr. David Larson Demill affiliated with?

Dr. Demill is affiliated with St. Mark's Hospital. Dmand AI links Dr. Demill to 1 more hospital.

What medical group is Dr. David Larson Demill part of?

Dr. Demill is linked to Intermountain Health. Dmand AI links Dr. Demill to 1 more medical group.

Does Dr. David Larson Demill accept Medicare?

Yes. CMS data shows Dr. Demill billed Medicare for 1,498 services in 2024, and Dr. Demill accepts Medicare assignment.

How many Medicare patients does Dr. David Larson Demill see?

CMS counts 629 Medicare patients who saw Dr. Demill in 2024, with an average age of 75.

Show 9 more questionsShow fewer questions

Is Dr. David Larson Demill board certified?

Yes. Dr. Demill is board certified in ophthalmology by the American Board of Ophthalmology.

What services does Dr. David Larson Demill bill to Medicare?

In 2024, Dr. Demill's most billed Medicare services were eye exam or test (92014), surgery: eye (66984) and office visit, established patient (99214).

Where did Dr. David Larson Demill go to medical school?

Dr. Demill graduated from Spencer Fox Eccles School of Medicine in 2012.

What drugs does Dr. David Larson Demill prescribe most?

In 2024 Medicare Part D data, Dr. Demill's most prescribed drugs by claims were Prednisolone Acetate, Latanoprost and Fluorometholone.

Has Dr. David Larson Demill received payments from drug or device companies?

CMS Open Payments shows $2,064 in general payments to Dr. Demill from 15 companies from 2017 to 2025. The largest total came from Johnson & Johnson Surgical Vision, Inc.

How long has Dr. David Larson Demill been practicing?

Dr. Demill graduated from medical school in 2012, 14 years ago.

Does Dr. David Larson Demill do research?

Dmand AI links 10 publications to Dr. Demill, published from 2011 to 2015.

Who does Dr. David Larson Demill publish with?

Dr. Demill's most frequent co-authors are Lindsay Nelson, DO (3 shared papers), Barbara M. Wirostko, MD (3 shared papers) and Maylon Hsu, MD (1 shared paper).

What insurance does Dr. David Larson Demill accept?

Dr. Demill is in network with 16 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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