Dr. David Loren Simons, MD, PhD
- Medicare services, 2019
- 645
- Medicare patients, 2024
- 18
- Part D claims, 2024
- 2,844
- Industry payments
- $1,163
- Affiliated sites
- 1
- Practice address
- 500 NE Multnomah St, Portland, OR 97232
- Practice phone
- Call (503) 813-2440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Foundation Health Plan of the Northwest
Portland, Oregon
Find Dr. Simons' 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. David Loren Simons is an ophthalmologist in Portland, Oregon
Dr. Simons practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon.
Dr. Simons' NPI, 1942568670, was assigned on May 1, 2012. Dr. Simons graduated from Baylor College of Medicine in 2012. Dr. Simons holds Washington license MD60742759.
- NPI
- 1942568670NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355587841
- NPI enumeration date
- May 1, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 813-2440
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Loren Simons practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon
Dr. Simons' primary practice is Kaiser Foundation Health Plan of the Northwest, at 500 NE Multnomah St, Portland, OR 97232 in Multnomah County. The practice phone is (503) 813-2440.
- Kaiser Foundation Health Plan of the Northwest500 NE Multnomah St, Portland, OR 97232 · Multnomah CountyPhone(503) 813-2440
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Loren Simons is affiliated with 2 sites of care and 1 medical group
Dr. Simons' primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. The medical group on file is Kaiser Permanente Northwest. Dmand AI also links Dr. Simons to 1 more group practice or clinic, 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. David Loren Simons' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simons practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Foundation Health Plan of the Northwest | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Loren Simons is one of 272 ophthalmologists in Oregon
Ophthalmology is Dr. Simons' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Simons is licensed in Washington.
Specialties and state licenses
- Ophthalmology, WashingtonPrimary
Ophthalmologists near Dr. Simons
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. David Loren Simons billed Medicare for 645 services in 2019
CMS data shows 645 Medicare services from Dr. Simons across 13 procedure codes in 2019, for 18 Medicare patients. Medicare paid $43,813 for them.
Dr. Simons' Medicare services by type, 2018 to 2019
- 2018
- 2019
- Tests and treatments
- 2018: 5382019: 42920%
- Office and hospital visits
- 2018: 2302019: 19615%
- Surgery
- 2018: 222019: 209%
Where Dr. Simons' Medicare services took place, 2019
- In an office62597%
- In a facility203%
Dr. Simons compared with the Oregon median for ophthalmologists, 2019
- Dr. Simons
- Oregon median
- Medicare services
- 645vs 1,10041% below
- Medicare patients
- 18vs 49596% below
- Part D claims
- 2,789vs 5664.9 times
Medians across 288 ophthalmologists in Oregon with Dmand AI profiles that report each measure.
Dr. Simons' most billed Medicare procedure codes, 2019
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. Simons and other ophthalmologists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Loren Simons treated 18 Medicare patients in 2024, average age 67
CMS counts 18 Medicare patients who saw Dr. Simons in 2024. 61% of them have diabetes. Their average risk score is 1.91, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Simons' median patient age at 63, with 49% women.
Chronic conditions among Dr. Simons' Medicare patients, 2024
- Diabetes61%
Share of Medicare patients with each condition. A patient can have several.
Dr. Simons' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Loren Simons wrote 2,844 Medicare Part D claims in 2024
In 2024, Dr. Simons wrote 2,844 Medicare Part D claims for 660 patients. 83% of them were for generic drugs. CMS names the drug for 2,789 of them, across 18 drugs with 11 or more claims each, at $99,835 in total drug cost. In 2023, CMS named 2,533 claims across 19 drugs.
Dr. Simons' Part D claims by kind of drug, 2024
- Generic2,367 claims83%
- Brand-name477 claims17%
Dr. Simons' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,5332024: 2,78910%
Drugs named by CMS: 18 in 2024, 19 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
How Dr. David Loren Simons takes part in Medicare
Dr. Simons accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 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. David Loren Simons received $1,163 in industry payments from 2016 to 2025
CMS Open Payments shows 12 general payments to Dr. Simons from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Glaukos Corporation paid the most, $336.
General payments to Dr. Simons by program year, 2016 to 2025
General payments to Dr. Simons by kind, 2016 to 2025
- Food and beverage$1,13898%
- Travel and lodging$252%
Companies that paid Dr. Simons 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. David Loren Simons graduated from Baylor College of Medicine
Dr. Simons graduated from Baylor College of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Loren Simons'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)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. David Loren Simons
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 Loren Simons' NPI number?
Dr. David Loren Simons' NPI number is 1942568670. It was assigned on May 1, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. David Loren Simons?
Dr. David Loren Simons is an ophthalmologist in Portland, Oregon. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. David Loren Simons practice?
Dr. Simons practices at 500 NE Multnomah St, Portland, OR 97232. Dr. Simons' primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. Dmand AI also links Dr. Simons to 1 group practice or clinic.
What is Dr. David Loren Simons' office phone number?
The practice phone on file for Dr. Simons is (503) 813-2440.
What is Dr. David Loren Simons' medical license number?
Dr. Simons holds Washington license MD60742759.
What medical group is Dr. David Loren Simons part of?
Dr. Simons is linked to Kaiser Permanente Northwest.
Does Dr. David Loren Simons accept Medicare?
Yes. CMS data shows Dr. Simons billed Medicare for 645 services in 2019, and Dr. Simons accepts Medicare assignment.
How many Medicare patients does Dr. David Loren Simons see?
CMS counts 18 Medicare patients who saw Dr. Simons in 2024, with an average age of 67.
What services does Dr. David Loren Simons bill to Medicare?
In 2019, Dr. Simons' most billed Medicare services were office visit, established patient (99213), eye exam or test (92014) and eye exam or test (92083).
Where did Dr. David Loren Simons go to medical school?
Dr. Simons graduated from Baylor College of Medicine in 2012.
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What drugs does Dr. David Loren Simons prescribe most?
In 2024 Medicare Part D data, Dr. Simons' most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. David Loren Simons received payments from drug or device companies?
CMS Open Payments shows $1,163 in general payments to Dr. Simons from 6 companies from 2016 to 2025. The largest total came from Glaukos Corporation.
How long has Dr. David Loren Simons been practicing?
Dr. Simons graduated from medical school in 2012, 14 years ago.
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