Dr. Oren Gersten, MD
- Part D claims, 2024
- 351
- Hospital affiliations
- 1
- Industry payments
- $14
- State license
- 1
- Year NPI issued
- 2015
- Practice address
- 800 Washington Street, Boston, MA 02111
- Practice phone
- Call (617) 636-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gersten'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. Oren Gersten is a family medicine physician in Boston, Massachusetts
Dr. Gersten practices at Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine.
Dr. Gersten's NPI, 1295129393, was assigned on March 26, 2015. Dr. Gersten holds Maine license MD22136.
- NPI
- 1295129393NPI Registry (opens in a new tab)
- NPI enumeration date
- March 26, 2015
- NPI status
- Active
- Practice phone
- (617) 636-5000
- 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 Affiliation Data
Dr. Oren Gersten practices at Tufts Medical Center in Boston, Massachusetts
Dr. Gersten's primary practice is Tufts Medical Center, at 800 Washington Street, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5000.
- Tufts Medical Center800 Washington Street, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5000
Source: Dmand AI Affiliation Data
Dr. Oren Gersten is affiliated with 2 sites of care
Dr. Gersten's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Gersten to 1 imaging center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Oren Gersten's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gersten practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tufts Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Oren Gersten is one of 2,036 family medicine physicians in Massachusetts
Family medicine is Dr. Gersten's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Gersten is licensed in Maine.
Specialties and state licenses
- Family medicine, MainePrimary
Family medicine physicians near Dr. Gersten
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. Oren Gersten's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Gersten's median patient age at 58, with 46% women.
Dr. Gersten's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women46%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Oren Gersten wrote 351 Medicare Part D claims in 2024
In 2024, Dr. Gersten wrote 351 Medicare Part D claims for 36 patients. 93% of them were for generic drugs. CMS names the drug for 151 of them, across 7 drugs with 11 or more claims each, at $1,074 in total drug cost. In 2023, CMS named 177 claims across 8 drugs.
Dr. Gersten's Part D claims by kind of drug, 2024
- Generic327 claims93%
- Brand-name24 claims7%
Dr. Gersten'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. Gersten's Part D claims, 2024
- Opioids3%12 of 351 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: 1772024: 15115%
Drugs named by CMS: 7 in 2024, 8 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. Oren Gersten received $14 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Gersten from 1 drug or device company in 2019. Education make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $14.
Companies that paid Dr. Gersten the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Oren Gersten'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) |
| 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. Oren Gersten
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. Oren Gersten's NPI number?
Dr. Oren Gersten's NPI number is 1295129393. It was assigned on March 26, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Oren Gersten?
Dr. Oren Gersten is a family medicine physician in Boston, Massachusetts. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Oren Gersten practice?
Dr. Gersten practices at 800 Washington Street, Boston, MA 02111. Dr. Gersten's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Gersten to 1 imaging center.
What is Dr. Oren Gersten's office phone number?
The practice phone on file for Dr. Gersten is (617) 636-5000.
What is Dr. Oren Gersten's medical license number?
Dr. Gersten holds Maine license MD22136.
Which hospitals is Dr. Oren Gersten affiliated with?
Dr. Gersten practices at Tufts Medical Center in Boston, Massachusetts.
What drugs does Dr. Oren Gersten prescribe most?
In 2024 Medicare Part D data, Dr. Gersten's most prescribed drugs by claims were Lisinopril, Gabapentin and Atorvastatin Calcium.
Has Dr. Oren Gersten received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Gersten from 1 company from 2019 to 2019. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Oren Gersten been practicing?
Dr. Gersten's NPI was assigned in 2015.
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