Dr. Ellen A. Markstein, MD
- Medicare services, 2020
- 1,570
- Part D claims, 2020
- 421
- Industry payments
- $1,219
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 8 E Main St, Clinton, CT 06413-2058
- Practice phone
- Call (860) 669-6156
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dermatology In Clinton
Dermatology practice · Clinton, Connecticut
Find Dr. Markstein'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. Ellen A. Markstein is a dermatologist in Connecticut
Dr. Markstein practices at Dermatology In Clinton in Clinton, Connecticut.
Dr. Markstein's NPI, 1659390797, was assigned on July 19, 2006. Dr. Markstein graduated from Yale School of Medicine in 1991. Dr. Markstein holds Connecticut license CT034247.
- NPI
- 1659390797NPI Registry (opens in a new tab)
- NPI enumeration date
- July 19, 2006
- NPI status
- Active
- Practice phone
- (860) 669-6156
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ellen A. Markstein practices at Dermatology in Clinton in Clinton, Connecticut
Dr. Markstein's primary practice is Dermatology in Clinton, at 8 E Main St, Clinton, CT 06413-2058. The practice phone is (860) 669-6156.
- Dermatology in Clinton8 E Main St, Clinton, CT 06413-2058Phone(860) 669-6156
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ellen A. Markstein is affiliated with 1 site of care and 1 medical group
Dr. Markstein's primary practice is Dermatology In Clinton in Clinton, Connecticut. Dmand AI also links Dr. Markstein to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Ellen A. Markstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markstein practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dermatology In Clinton | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ellen A. Markstein is one of 225 dermatologists in Connecticut
Dermatology is Dr. Markstein's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Markstein is licensed in Connecticut.
Specialties and state licenses
- Dermatology, ConnecticutPrimary
Dermatologists near Dr. Markstein
Counts of dermatologists 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. Ellen A. Markstein billed Medicare for 1,570 services in 2020
CMS data shows 1,570 Medicare services from Dr. Markstein across 9 procedure codes in 2020. Medicare paid $68,061 for them. Every service was in an office.
Dr. Markstein's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Surgery
- 2019: 9132020: 8992%
- Office and hospital visits
- 2019: 7222020: 6717%
Dr. Markstein compared with the Connecticut median for dermatologists, 2020
- Dr. Markstein
- Connecticut median
- Medicare services
- 1,570vs 1,41511% above
- Part D claims
- 421vs 51819% below
Medians across 222 dermatologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Markstein's most billed Medicare procedure codes, 2020
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. Markstein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Markstein and other dermatologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ellen A. Markstein's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Markstein's median patient age at 76, with 68% women.
Dr. Markstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women68%
- Men32%
Source: Dmand AI Patient Panel Data
Dr. Ellen A. Markstein wrote 421 Medicare Part D claims in 2020
In 2020, Dr. Markstein wrote 421 Medicare Part D claims. They cover 15 drugs, with $20,582 in total drug cost. In 2019, CMS named 354 claims across 11 drugs.
Dr. Markstein's most prescribed drugs by claims, 2020
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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 3542020: 42119%
Drugs named by CMS: 15 in 2020, 11 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Ellen A. Markstein received $1,219 in industry payments from 2016 to 2020
CMS Open Payments shows 73 general payments to Dr. Markstein from 14 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 96% of the total. Abbvie Inc. paid the most, $404.
General payments to Dr. Markstein by program year, 2016 to 2020
General payments to Dr. Markstein by kind, 2016 to 2020
- Food and beverage$1,17696%
- Education$434%
Companies that paid Dr. Markstein the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ellen A. Markstein graduated from Yale School of Medicine
Dr. Markstein graduated from Yale School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ellen A. Markstein'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Ellen A. Markstein
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. Ellen A. Markstein's NPI number?
Dr. Ellen A. Markstein's NPI number is 1659390797. It was assigned on July 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ellen A. Markstein?
Dr. Ellen A. Markstein is a dermatologist in Connecticut. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Ellen A. Markstein practice?
Dr. Markstein practices at 8 E Main St, Clinton, CT 06413-2058. Dr. Markstein's primary practice is Dermatology In Clinton in Clinton, Connecticut. Dmand AI also links Dr. Markstein to 1 medical group.
What is Dr. Ellen A. Markstein's office phone number?
The practice phone on file for Dr. Markstein is (860) 669-6156.
What is Dr. Ellen A. Markstein's medical license number?
Dr. Markstein holds Connecticut license CT034247.
Does Dr. Ellen A. Markstein accept Medicare?
Yes. CMS data shows Dr. Markstein billed Medicare for 1,570 services in 2020.
What services does Dr. Ellen A. Markstein bill to Medicare?
In 2020, Dr. Markstein's most billed Medicare services were office visit, established patient (99213), surgery: skin and soft tissue (17003) and office visit, established patient (99212).
Where did Dr. Ellen A. Markstein go to medical school?
Dr. Markstein graduated from Yale School of Medicine in 1991.
What drugs does Dr. Ellen A. Markstein prescribe most?
In 2020 Medicare Part D data, Dr. Markstein's most prescribed drugs by claims were Fluorouracil, Fluticasone Propionate and Triamcinolone Acetonide.
Has Dr. Ellen A. Markstein received payments from drug or device companies?
CMS Open Payments shows $1,219 in general payments to Dr. Markstein from 14 companies from 2016 to 2020. The largest total came from Abbvie Inc.
How long has Dr. Ellen A. Markstein been practicing?
Dr. Markstein graduated from medical school in 1991, 35 years ago.
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