Dr. Julia Ernst, MD, PhD
- Part D claims, 2024
- 186
- Hospital affiliations
- 1
- Industry payments
- $308
- Medical group
- 1
- State license
- 1
- Practice address
- 41 & 45 Mall Road, Burlington, MA 01803
- Practice phone
- Call (781) 744-5100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ernst's professional email, personal email and mobile number
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Dr. Julia Ernst is an ophthalmologist in Burlington, Massachusetts
Dr. Ernst practices at Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health.
Dr. Ernst's NPI, 1588239271, was assigned on May 25, 2021. Dr. Ernst holds Massachusetts license 1023058.
- NPI
- 1588239271NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567989346
- NPI enumeration date
- May 25, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 744-5100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Julia Ernst practices at Lahey Clinic in Burlington, Massachusetts
Dr. Ernst's primary practice is Lahey Clinic, at 41 & 45 Mall Road, Burlington, MA 01803 in Middlesex County. The practice phone is (781) 744-5100.
- Lahey Clinic41 & 45 Mall Road, Burlington, MA 01803 · Middlesex CountyPhone(781) 744-5100
Source: Dmand AI Affiliation Data
Dr. Julia Ernst is affiliated with 1 site of care and 1 medical group
Dr. Ernst's primary practice is Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health. The medical group on file is Lahey Clinic.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Julia Ernst's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ernst practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lahey Clinic | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Beth Israel Lahey Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Julia Ernst is one of 617 ophthalmologists in Massachusetts
Ophthalmology is Dr. Ernst's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Ernst is licensed in Massachusetts.
Specialties and state licenses
- Ophthalmology, MassachusettsPrimary
Ophthalmologists near Dr. Ernst
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. Julia Ernst's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Ernst's median patient age at 71, with 33% women.
Dr. Ernst's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Julia Ernst wrote 186 Medicare Part D claims in 2024
In 2024, Dr. Ernst wrote 186 Medicare Part D claims for 78 patients. 59% of them were for generic drugs. CMS names the drug for 124 of them, across 6 drugs with 11 or more claims each, at $12,871 in total drug cost.
Dr. Ernst's Part D claims by kind of drug, 2024
- Generic109 claims59%
- Brand-name77 claims41%
Dr. Ernst'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.
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. Julia Ernst takes part in Medicare
Dr. Ernst accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Julia Ernst received $308 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Dr. Ernst from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Sight Sciences, Inc. paid the most, $287.
General payments to Dr. Ernst by program year, 2024 to 2025
Companies that paid Dr. Ernst the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Julia Ernst'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 Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Julia Ernst
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. Julia Ernst's NPI number?
Dr. Julia Ernst's NPI number is 1588239271. It was assigned on May 25, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Julia Ernst?
Dr. Julia Ernst is an ophthalmologist in Burlington, Massachusetts. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Julia Ernst practice?
Dr. Ernst practices at 41 & 45 Mall Road, Burlington, MA 01803. Dr. Ernst's primary practice is Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health.
What is Dr. Julia Ernst's office phone number?
The practice phone on file for Dr. Ernst is (781) 744-5100.
What is Dr. Julia Ernst's medical license number?
Dr. Ernst holds Massachusetts license 1023058.
Which hospitals is Dr. Julia Ernst affiliated with?
Dr. Ernst practices at Lahey Clinic in Burlington, Massachusetts.
What medical group is Dr. Julia Ernst part of?
Dr. Ernst is linked to Lahey Clinic.
Does Dr. Julia Ernst accept Medicare?
Yes. CMS lists Dr. Ernst as accepting Medicare assignment.
What drugs does Dr. Julia Ernst prescribe most?
In 2024 Medicare Part D data, Dr. Ernst's most prescribed drugs by claims were Prednisolone Acetate, Ketorolac Tromethamine and Latanoprost.
Has Dr. Julia Ernst received payments from drug or device companies?
CMS Open Payments shows $308 in general payments to Dr. Ernst from 2 companies from 2024 to 2025. The largest total came from Sight Sciences, Inc.
How long has Dr. Julia Ernst been practicing?
Dr. Ernst graduated from medical school in 2020, 6 years ago.
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