Dr. Ethan Lazarus, MD
- Part D claims, 2024
- 214
- Industry payments
- $862,681
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 4747 Arapahoe Ave, Boulder, CO 80303
- Practice phone
- Call (303) 415-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Foothills Hospital
Boulder, Colorado
Find Dr. Lazarus' 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. Ethan Lazarus is a family medicine physician in Boulder, Colorado
Dr. Lazarus practices at Foothills Hospital in Boulder, Colorado.
Dr. Lazarus' NPI, 1427187962, was assigned on March 2, 2007. Dr. Lazarus holds Colorado license 37724.
- NPI
- 1427187962NPI Registry (opens in a new tab)
- NPI enumeration date
- March 2, 2007
- NPI status
- Active
- Practice phone
- (303) 415-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Ethan Lazarus practices at Foothills Hospital in Boulder, Colorado
Dr. Lazarus' primary practice is Foothills Hospital, at 4747 Arapahoe Ave, Boulder, CO 80303 in Boulder County. The practice phone is (303) 415-7000.
- Foothills Hospital4747 Arapahoe Ave, Boulder, CO 80303 · Boulder CountyPhone(303) 415-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ethan Lazarus is affiliated with 1 site of care
Dr. Lazarus' primary practice is Foothills Hospital in Boulder, Colorado.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Ethan Lazarus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lazarus practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Foothills Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ethan Lazarus is one of 2,952 family medicine physicians in Colorado
Family medicine is Dr. Lazarus' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Lazarus is licensed in Colorado.
Specialties and state licenses
- Family medicine, ColoradoPrimary
Family medicine physicians near Dr. Lazarus
Counts of family medicine physicians 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. Ethan Lazarus' patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Lazarus' median patient age at 67, with 71% women.
Dr. Lazarus' 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
- Women71%
- Men29%
Source: Dmand AI Patient Panel Data
Dr. Ethan Lazarus wrote 214 Medicare Part D claims in 2024
In 2024, Dr. Lazarus wrote 214 Medicare Part D claims for 36 patients. 51% of them were for generic drugs. CMS names the drug for 126 of them, across 5 drugs with 11 or more claims each, at $97,249 in total drug cost. In 2023, CMS named 129 claims across 6 drugs.
Dr. Lazarus' Part D claims by kind of drug, 2024
- Generic109 claims51%
- Brand-name105 claims49%
Dr. Lazarus' 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: 1292024: 1262%
Drugs named by CMS: 5 in 2024, 6 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
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Dr. Ethan Lazarus received $862,681 in industry payments from 2016 to 2025
CMS Open Payments shows 1,249 general payments to Dr. Lazarus from 12 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 65% of the total. Novo Nordisk Inc paid the most, $547,475.
General payments to Dr. Lazarus by program year, 2016 to 2025
General payments to Dr. Lazarus by kind, 2016 to 2025
- Speaker and faculty fees$561,74865%
- Travel and lodging$136,33716%
- Consulting fees$103,67712%
- Honoraria$33,1394%
- Food and beverage$27,7803%
Companies that paid Dr. Lazarus the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ethan Lazarus'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 Data |
| 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) |
| 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. Ethan Lazarus
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. Ethan Lazarus' NPI number?
Dr. Ethan Lazarus' NPI number is 1427187962. It was assigned on March 2, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ethan Lazarus?
Dr. Ethan Lazarus is a family medicine physician in Boulder, Colorado. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Ethan Lazarus practice?
Dr. Lazarus practices at 4747 Arapahoe Ave, Boulder, CO 80303. Dr. Lazarus' primary practice is Foothills Hospital in Boulder, Colorado.
What is Dr. Ethan Lazarus' office phone number?
The practice phone on file for Dr. Lazarus is (303) 415-7000.
What is Dr. Ethan Lazarus' medical license number?
Dr. Lazarus holds Colorado license 37724.
What drugs does Dr. Ethan Lazarus prescribe most?
In 2024 Medicare Part D data, Dr. Lazarus' most prescribed drugs by claims were Mounjaro, Ozempic and Metformin HCl ER.
Has Dr. Ethan Lazarus received payments from drug or device companies?
CMS Open Payments shows $862,681 in general payments to Dr. Lazarus from 12 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Ethan Lazarus been practicing?
Dr. Lazarus' NPI was assigned in 2007.
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