Dr. David A. Epstein, MD
- Medicare services, 2024
- 253
- Medicare patients, 2024
- 141
- Part D claims, 2024
- 6,281
- Hospital affiliations
- 3
- Industry payments
- $263
- Practice address
- 1493 Cambridge Street, Cambridge, MA 02139
- Practice phone
- Call (617) 665-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Epstein's professional email, personal email and mobile number
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Dr. David A. Epstein is an internist in Cambridge, Massachusetts
Dr. Epstein practices at CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance.
Dr. Epstein's NPI, 1396753067, was assigned on August 4, 2006. Dr. Epstein graduated from Tufts University School of Medicine in 1992. Dr. Epstein holds Massachusetts license 150413.
- NPI
- 1396753067NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254363971
- NPI enumeration date
- August 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 665-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David A. Epstein practices at CHA Cambridge Hospital in Cambridge, Massachusetts
Dr. Epstein's primary practice is CHA Cambridge Hospital, at 1493 Cambridge Street, Cambridge, MA 02139 in Middlesex County. The practice phone is (617) 665-1000.
- CHA Cambridge Hospital1493 Cambridge Street, Cambridge, MA 02139 · Middlesex CountyPhone(617) 665-1000
Source: Dmand AI Affiliation Data
Dr. David A. Epstein is affiliated with 8 sites of care and 1 medical group
Dr. Epstein's primary practice is CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance. Dr. Epstein is also affiliated with Mount Auburn Hospital. The medical group on file is Cambridge Health Alliance. Dmand AI also links Dr. Epstein to 1 more hospital, 3 home health agencies, 1 group practice or clinic and 1 hospice, each named with a free account. Dr. Epstein's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David A. Epstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Epstein practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHA Cambridge Hospital | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Cambridge Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David A. Epstein is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Epstein's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Epstein is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Epstein
Counts of internists 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 A. Epstein billed Medicare for 253 services in 2024
CMS data shows 253 Medicare services from Dr. Epstein across 4 procedure codes in 2024, for 141 Medicare patients. Medicare paid $13,972 for them.
Dr. Epstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2932024: 25314%
- Other services
- 2023: 112024: 0100%
Where Dr. Epstein's Medicare services took place, 2024
- In an office6927%
- In a facility18473%
Dr. Epstein compared with the Massachusetts median for internists, 2024
- Dr. Epstein
- Massachusetts median
- Medicare services
- 253vs 43141% below
- Medicare patients
- 141vs 19427% below
- Part D claims
- 5,591vs 40213.9 times
Medians across 5,369 internists in Massachusetts 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 internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David A. Epstein treated 141 Medicare patients in 2024, average age 70
CMS counts 141 Medicare patients who saw Dr. Epstein in 2024. The largest group is 65 to 74, with 52 patients. 69% of them have high blood pressure, and 45% have high cholesterol. 55% are also on Medicaid. Their average risk score is 1.75, 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. Epstein's median patient age at 54, with 37% women.
Dr. Epstein's Medicare patients by age, 2024
Dr. Epstein's Medicare patients by sex, 2024
- Women6043%
- Men8157%
Chronic conditions among Dr. Epstein's Medicare patients, 2024
- High blood pressure69%
- High cholesterol45%
- Diabetes44%
- Mood disorders30%
- Chronic kidney disease28%
- Ischemic heart disease28%
- Arthritis27%
- COPD26%
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 54
Patient panel by sex, all payers
- Women37%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David A. Epstein wrote 6,281 Medicare Part D claims in 2024
In 2024, Dr. Epstein wrote 6,281 Medicare Part D claims for 386 patients. 80% of them were for generic drugs. CMS names the drug for 5,591 of them, across 116 drugs with 11 or more claims each, at $737,675 in total drug cost. In 2023, CMS named 5,336 claims across 118 drugs.
Dr. Epstein's Part D claims by kind of drug, 2024
- Generic5,051 claims80%
- Brand-name1,116 claims18%
- Other114 claims2%
Dr. Epstein'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.
Drug classes CMS tracks in Dr. Epstein's Part D claims, 2024
- Opioids4%241 of 6,281 claims
- Antibiotics1%59 of 6,281 claims
- Antipsychotics, patients 65 and over1%69 of 6,281 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,3362024: 5,5915%
Drugs named by CMS: 116 in 2024, 118 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
Dr. David A. Epstein offers telehealth to Medicare patients
Dr. Epstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Epstein as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David A. Epstein received $263 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Epstein from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Asahi Intecc USA Inc paid the most, $241.
Companies that paid Dr. Epstein the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David A. Epstein graduated from Tufts University School of Medicine
Dr. Epstein graduated from Tufts University School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David A. 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) |
| 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) |
| 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 A. Epstein
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 A. Epstein's NPI number?
Dr. David A. Epstein's NPI number is 1396753067. It was assigned on August 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David A. Epstein?
Dr. David A. Epstein is an internist in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David A. Epstein practice?
Dr. Epstein practices at 1493 Cambridge Street, Cambridge, MA 02139. Dr. Epstein's primary practice is CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance. Dmand AI also links Dr. Epstein to 1 hospital, 3 home health agencies, 1 group practice or clinic and 1 hospice.
What is Dr. David A. Epstein's office phone number?
The practice phone on file for Dr. Epstein is (617) 665-1000.
What is Dr. David A. Epstein's medical license number?
Dr. Epstein holds Massachusetts license 150413.
Which hospitals is Dr. David A. Epstein affiliated with?
Dr. Epstein practices at CHA Cambridge Hospital in Cambridge, Massachusetts. Dr. Epstein is also affiliated with Mount Auburn Hospital. Dmand AI links Dr. Epstein to 1 more hospital.
What medical group is Dr. David A. Epstein part of?
Dr. Epstein is linked to Cambridge Health Alliance.
Does Dr. David A. Epstein accept Medicare?
Yes. CMS data shows Dr. Epstein billed Medicare for 253 services in 2024, and Dr. Epstein accepts Medicare assignment.
Does Dr. David A. Epstein offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Epstein as offering telehealth services.
How many Medicare patients does Dr. David A. Epstein see?
CMS counts 141 Medicare patients who saw Dr. Epstein in 2024, with an average age of 70.
Show 5 more questionsShow fewer questions
What services does Dr. David A. Epstein bill to Medicare?
In 2024, Dr. Epstein's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and care management and other visits (99442).
Where did Dr. David A. Epstein go to medical school?
Dr. Epstein graduated from Tufts University School of Medicine in 1992.
What drugs does Dr. David A. Epstein prescribe most?
In 2024 Medicare Part D data, Dr. Epstein's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. David A. Epstein received payments from drug or device companies?
CMS Open Payments shows $263 in general payments to Dr. Epstein from 2 companies from 2025 to 2025. The largest total came from Asahi Intecc USA Inc.
How long has Dr. David A. Epstein been practicing?
Dr. Epstein graduated from medical school in 1992, 34 years ago.
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