Dr. Hillary Maren Epstein, MD
- Medicare services, 2024
- 2,777
- Medicare patients, 2024
- 2,012
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Industry payments
- $387
- Practice address
- 410 Malcolm Drive, Ste A, Westminster, MD 21157
- Practice phone
- Call (443) 738-2872
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Summit Ambulatory Surgery Center - Westminster
Surgery Center - Medicare-Certified · Westminster, Maryland
Find Dr. Epstein's professional email, personal email and mobile number
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Dr. Hillary Maren Epstein is a pathologist in Westminster, Maryland
Dr. Epstein practices at Summit Ambulatory Surgery Center - Westminster in Westminster, Maryland.
Dr. Epstein's NPI, 1376744656, was assigned on May 31, 2007. Dr. Epstein graduated from University of Arizona College of Medicine in 2007. Dr. Epstein holds Maryland license D0075844.
- NPI
- 1376744656NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729220561
- NPI enumeration date
- May 31, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (443) 738-2872
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hillary Maren Epstein practices at Summit Ambulatory Surgery Center - Westminster in Westminster, Maryland
Dr. Epstein's primary practice is Summit Ambulatory Surgery Center - Westminster, at 410 Malcolm Drive, Ste A, Westminster, MD 21157. The practice phone is (443) 738-2872.
- Summit Ambulatory Surgery Center - Westminster410 Malcolm Drive, Ste A, Westminster, MD 21157Phone(443) 738-2872
Source: Dmand AI Affiliation Data
Dr. Hillary Maren Epstein is affiliated with 2 sites of care and 2 medical groups
Dr. Epstein's primary practice is Summit Ambulatory Surgery Center - Westminster in Westminster, Maryland. Dr. Epstein is also affiliated with NewYork-Presbyterian/Weill Cornell Medical Center. The medical group on file is Chesapeake Urology Associates. Dmand AI also links Dr. Epstein to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Hillary Maren Epstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Epstein practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Summit Ambulatory Surgery Center - Westminster | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Hillary Maren Epstein is one of 194 pathologists in Maryland
Anatomic pathology and clinical pathology is Dr. Epstein's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Epstein is licensed in Maryland.
Specialties and state licenses
- Anatomic pathology and clinical pathology, MarylandPrimary
Pathologists near Dr. Epstein
Counts of pathologists 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. Hillary Maren Epstein billed Medicare for 2,777 services in 2024
CMS data shows 2,777 Medicare services from Dr. Epstein across 10 procedure codes in 2024, for 2,012 Medicare patients. Medicare paid $501,246 for them. Every service was in an office.
Dr. Epstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 3,4682024: 2,21336%
- Other services
- 2023: 7812024: 56428%
Dr. Epstein compared with the Maryland median for pathologists, 2024
- Dr. Epstein
- Maryland median
- Medicare services
- 2,777vs 1,2642.2 times
- Medicare patients
- 2,012vs 6063.3 times
Medians across 198 pathologists in Maryland with Dmand AI profiles that report each measure.
Dr. Epstein'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Epstein and other pathologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Hillary Maren Epstein treated 2,012 Medicare patients in 2024, average age 76
CMS counts 2,012 Medicare patients who saw Dr. Epstein in 2024. The largest group is 75 to 84, with 878 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Epstein's median patient age at 72, with 5% women.
Dr. Epstein's Medicare patients by age, 2024
Dr. Epstein's Medicare patients by sex, 2024
- Women45222%
- Men1,56078%
Chronic conditions among Dr. Epstein's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis43%
- Cancer40%
- Diabetes35%
- Ischemic heart disease33%
- Chronic kidney disease26%
- Atrial fibrillation19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Epstein'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
- Women5%
- Men93%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Hillary Maren Epstein scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Epstein for performance year 2024, reported as part of a group. Dr. Epstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Epstein's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Hillary Maren Epstein received $387 in industry payments from 2017 to 2024
CMS Open Payments shows 5 general payments to Dr. Epstein from 5 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Teleflex LLC paid the most, $139.
General payments to Dr. Epstein by program year, 2017 to 2024
Companies that paid Dr. Epstein the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Hillary Maren Epstein graduated from University of Arizona College of Medicine
Dr. Epstein graduated from University of Arizona College of Medicine in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Hillary Maren Epstein'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Hillary Maren Epstein
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What is Dr. Hillary Maren Epstein's NPI number?
Dr. Hillary Maren Epstein's NPI number is 1376744656. It was assigned on May 31, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Hillary Maren Epstein?
Dr. Hillary Maren Epstein is a pathologist in Westminster, Maryland. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Hillary Maren Epstein practice?
Dr. Epstein practices at 410 Malcolm Drive, Ste A, Westminster, MD 21157. Dr. Epstein's primary practice is Summit Ambulatory Surgery Center - Westminster in Westminster, Maryland. Dmand AI also links Dr. Epstein to 1 medical group.
What is Dr. Hillary Maren Epstein's office phone number?
The practice phone on file for Dr. Epstein is (443) 738-2872.
What is Dr. Hillary Maren Epstein's medical license number?
Dr. Epstein holds Maryland license D0075844.
Which hospitals is Dr. Hillary Maren Epstein affiliated with?
Dr. Epstein is affiliated with NewYork-Presbyterian/Weill Cornell Medical Center.
What medical group is Dr. Hillary Maren Epstein part of?
Dr. Epstein is linked to Chesapeake Urology Associates. Dmand AI links Dr. Epstein to 1 more medical group.
Does Dr. Hillary Maren Epstein accept Medicare?
Yes. CMS data shows Dr. Epstein billed Medicare for 2,777 services in 2024, and Dr. Epstein accepts Medicare assignment.
What is Dr. Hillary Maren Epstein's MIPS score?
Dr. Epstein's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Hillary Maren Epstein see?
CMS counts 2,012 Medicare patients who saw Dr. Epstein in 2024, with an average age of 76.
Show 4 more questionsShow fewer questions
What services does Dr. Hillary Maren Epstein bill to Medicare?
In 2024, Dr. Epstein's most billed Medicare services were lab and pathology test (88112), medicare service (G0416) and lab and pathology test (88344).
Where did Dr. Hillary Maren Epstein go to medical school?
Dr. Epstein graduated from University of Arizona College of Medicine in 2007.
Has Dr. Hillary Maren Epstein received payments from drug or device companies?
CMS Open Payments shows $387 in general payments to Dr. Epstein from 5 companies from 2017 to 2024. The largest total came from Teleflex LLC.
How long has Dr. Hillary Maren Epstein been practicing?
Dr. Epstein graduated from medical school in 2007, 19 years ago.
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