Dr. Daniel E. Fein, MD
- Medicare services, 2024
- 1,272
- Medicare patients, 2024
- 223
- Part D claims, 2024
- 1,219
- Hospital affiliations
- 6
- Industry payments
- $687
- Practice address
- 330 Brookline Avenue, Boston, MA 02215
- Practice phone
- Call (617) 667-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fein's professional email, personal email and mobile number
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Dr. Daniel E. Fein is an internist in Boston, Massachusetts
Dr. Fein practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health.
Dr. Fein's NPI, 1053791707, was assigned on June 8, 2015. Dr. Fein graduated from State University of New York Downstate Medical Center in 2015. Dr. Fein holds Massachusetts license 263914.
- NPI
- 1053791707NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628367356
- NPI enumeration date
- June 8, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 667-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel E. Fein practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts
Dr. Fein's primary practice is Beth Israel Deaconess Medical Center, at 330 Brookline Avenue, Boston, MA 02215 in Suffolk County. The practice phone is (617) 667-7000.
- Beth Israel Deaconess Medical Center330 Brookline Avenue, Boston, MA 02215 · Suffolk CountyPhone(617) 667-7000
Source: Dmand AI Affiliation Data
Dr. Daniel E. Fein is affiliated with 6 sites of care and 2 medical groups
Dr. Fein's primary practice is Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health. Dr. Fein is also affiliated with Dana-Farber Cancer Institute. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI also links Dr. Fein to 4 more hospitals and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel E. Fein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fein practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Beth Israel Deaconess Medical Center | Available with a free account |
| +5 more sites and 1 medical group | 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. Daniel E. Fein is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Fein's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Fein is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Fein
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. Daniel E. Fein billed Medicare for 1,272 services in 2024
CMS data shows 1,272 Medicare services from Dr. Fein across 8 procedure codes in 2024, for 223 Medicare patients. Medicare paid $75,899 for them.
Dr. Fein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7372024: 739No change
- Other services
- 2023: 02024: 533
Where Dr. Fein's Medicare services took place, 2024
- In an office877%
- In a facility1,18593%
Dr. Fein compared with the Massachusetts median for internists, 2024
- Dr. Fein
- Massachusetts median
- Medicare services
- 1,272vs 4313.0 times
- Medicare patients
- 223vs 19415% above
- Part D claims
- 1,047vs 4022.6 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Fein'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.
Need commercial claims for Dr. Fein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fein and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel E. Fein treated 223 Medicare patients in 2024, average age 77
CMS counts 223 Medicare patients who saw Dr. Fein in 2024. The largest group is 65 to 74, with 94 patients. 75% of them have cancer, and 75% have high blood pressure. 18% are also on Medicaid. Their average risk score is 2.13, 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. Fein's median patient age at 72, with 14% women.
Dr. Fein's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fein's Medicare patients by sex, 2024
- Women3114%
- Men19286%
Chronic conditions among Dr. Fein's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol74%
- Arthritis38%
- Diabetes38%
- Chronic kidney disease31%
- Ischemic heart disease30%
- Anxiety29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fein'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
- Women14%
- Men85%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel E. Fein wrote 1,219 Medicare Part D claims in 2024
In 2024, Dr. Fein wrote 1,219 Medicare Part D claims for 126 patients. 46% of them were for generic drugs. CMS names the drug for 1,047 of them, across 17 drugs with 11 or more claims each, at $5,727,001 in total drug cost. In 2023, CMS named 909 claims across 12 drugs.
Dr. Fein's Part D claims by kind of drug, 2024
- Generic558 claims46%
- Brand-name661 claims54%
Dr. Fein'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. Fein's Part D claims, 2024
- Opioids2%23 of 1,219 claims
- Antibiotics1%15 of 1,219 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: 9092024: 1,04715%
Drugs named by CMS: 17 in 2024, 12 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. Daniel E. Fein offers telehealth to Medicare patients
Dr. Fein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Fein as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Daniel E. Fein received $687 in industry payments from 2018 to 2025
CMS Open Payments shows 9 general payments to Dr. Fein from 5 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 72% of the total. Seagen Inc. paid the most, $211.
General payments to Dr. Fein by program year, 2018 to 2025
General payments to Dr. Fein by kind, 2018 to 2025
- Food and beverage$49372%
- Education$19528%
Companies that paid Dr. Fein the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel E. Fein graduated from State University of New York Downstate Medical Center
Dr. Fein graduated from State University of New York Downstate Medical Center in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel E. Fein'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. Daniel E. Fein
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. Daniel E. Fein's NPI number?
Dr. Daniel E. Fein's NPI number is 1053791707. It was assigned on June 8, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel E. Fein?
Dr. Daniel E. Fein is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Daniel E. Fein practice?
Dr. Fein practices at 330 Brookline Avenue, Boston, MA 02215. Dr. Fein's primary practice is Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Dr. Fein to 4 hospitals and 1 medical group.
What is Dr. Daniel E. Fein's office phone number?
The practice phone on file for Dr. Fein is (617) 667-7000.
What is Dr. Daniel E. Fein's medical license number?
Dr. Fein holds Massachusetts license 263914.
Which hospitals is Dr. Daniel E. Fein affiliated with?
Dr. Fein practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts. Dr. Fein is also affiliated with Dana-Farber Cancer Institute. Dmand AI links Dr. Fein to 4 more hospitals.
What medical group is Dr. Daniel E. Fein part of?
Dr. Fein is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI links Dr. Fein to 1 more medical group.
Does Dr. Daniel E. Fein accept Medicare?
Yes. CMS data shows Dr. Fein billed Medicare for 1,272 services in 2024, and Dr. Fein accepts Medicare assignment.
Does Dr. Daniel E. Fein offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Fein as offering telehealth services.
How many Medicare patients does Dr. Daniel E. Fein see?
CMS counts 223 Medicare patients who saw Dr. Fein in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Daniel E. Fein bill to Medicare?
In 2024, Dr. Fein's most billed Medicare services were medicare service (G2211), office visit, established patient (99215) and office visit, established patient (99214).
Where did Dr. Daniel E. Fein go to medical school?
Dr. Fein graduated from State University of New York Downstate Medical Center in 2015.
What drugs does Dr. Daniel E. Fein prescribe most?
In 2024 Medicare Part D data, Dr. Fein's most prescribed drugs by claims were Orgovyx, Nubeqa and Abiraterone Acetate.
Has Dr. Daniel E. Fein received payments from drug or device companies?
CMS Open Payments shows $687 in general payments to Dr. Fein from 5 companies from 2018 to 2025. The largest total came from Seagen Inc.
How long has Dr. Daniel E. Fein been practicing?
Dr. Fein graduated from medical school in 2015, 11 years ago.
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