Dr. Corey R. Fehnel, MD
- Medicare services, 2024
- 198
- Medicare patients, 2024
- 66
- Publications
- 44
- Hospital affiliations
- 1
- Industry payments
- $5
- 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. Fehnel'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. Corey R. Fehnel is a neurocritical care physician in Boston, Massachusetts
Dr. Fehnel practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health.
Dr. Fehnel's NPI, 1093960783, was assigned on November 21, 2008. Dr. Fehnel graduated from University of Rochester School of Medicine and Dentistry in 2006. Dr. Fehnel holds Massachusetts license 238440.
- NPI
- 1093960783NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446418750
- NPI enumeration date
- November 21, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 667-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Corey R. Fehnel practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts
Dr. Fehnel'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. Corey R. Fehnel is affiliated with 1 site of care and 2 medical groups
Dr. Fehnel's primary practice is Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI also links Dr. Fehnel 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. Corey R. Fehnel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fehnel practices. 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 |
| +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. Corey R. Fehnel is one of 16 neurocritical care physicians in Massachusetts
Neurocritical care is Dr. Fehnel's primary specialty in the NPI Registry, under taxonomy code 2084A2900X. Dr. Fehnel is board certified in neurocritical care by the American Board of Emergency Medicine. Dr. Fehnel is licensed in Massachusetts.
Specialties and state licenses
- Neurocritical care, MassachusettsPrimary
Neurocritical care physicians near Dr. Fehnel
Counts of neurocritical care 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. Corey R. Fehnel billed Medicare for 198 services in 2024
CMS data shows 198 Medicare services from Dr. Fehnel across 2 procedure codes in 2024, for 66 Medicare patients. Medicare paid $32,978 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Fehnel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1892024: 1985%
Dr. Fehnel compared with the Massachusetts median for neurocritical care physicians, 2024
- Dr. Fehnel
- Massachusetts median
- Medicare services
- 198vs 25623% below
- Medicare patients
- 66vs 12346% below
Medians across 16 neurocritical care physicians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Fehnel'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. Fehnel?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fehnel and other neurocritical care physicians in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Corey R. Fehnel treated 66 Medicare patients in 2024, average age 76
CMS counts 66 Medicare patients who saw Dr. Fehnel in 2024. The largest group is 75 to 84, with 25 patients. 75% of them have high blood pressure, and 75% have stroke or tia. 26% are also on Medicaid. Their average risk score is 1.86, 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. Fehnel's median patient age at 63, with 63% women.
Dr. Fehnel's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fehnel's Medicare patients by sex, 2024
- Women3452%
- Men3248%
Chronic conditions among Dr. Fehnel's Medicare patients, 2024
- High blood pressure75%
- Stroke or TIA75%
- High cholesterol73%
- Ischemic heart disease48%
- Arthritis47%
- Atrial fibrillation45%
- Anxiety41%
- Heart failure38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fehnel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women63%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Corey R. Fehnel takes part in Medicare
Dr. Fehnel accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Corey R. Fehnel has 44 publications on record
Dmand AI links 44 papers to Dr. Fehnel, published from 2013 to 2025. 2024 was the busiest year, with 6. The most frequent topics are Intensive Care Units, Stroke and Subarachnoid Hemorrhage. Dr. Fehnel has published most often in Neurocrit Care. Dr. Fehnel's most frequent co-authors are Susanne Muehlschlegel, MD, Christopher S. Ogilvy, MD and Brian Silver, MD.
Dr. Fehnel's papers by year, 2016 to 2025
Topics Dr. Fehnel writes about most
- Intensive Care Units
- Stroke
- Subarachnoid Hemorrhage
- Medicare
- Brain Injuries
- Patient Readmission
- Tomography, X-Ray Computed
- Cerebral Hemorrhage
Dr. Fehnel's most frequent co-authors
- Susanne Muehlschlegel, MD5 shared papers
- Christopher S. Ogilvy, MD5 shared papers
- Brian Silver, MD5 shared papers
Recent publications by Dr. Fehnel
Neurocrit Care
See who Dr. Fehnel researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fehnel works with, so you can find a warm path to the right neurocritical care physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Corey R. Fehnel received $5 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Fehnel from 1 drug or device company in 2021. Honoraria make up the largest share, 100% of the total. UCB, Inc. paid the most, $5.
Companies that paid Dr. Fehnel the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Corey R. Fehnel graduated from University of Rochester School of Medicine and Dentistry
Dr. Fehnel graduated from University of Rochester School of Medicine and Dentistry in 2006.
- Medical school
- Board certified in neurocritical care
Source: Dmand AI Professional Profile Data
Sources for Dr. Corey R. Fehnel'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Corey R. Fehnel
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. Corey R. Fehnel's NPI number?
Dr. Corey R. Fehnel's NPI number is 1093960783. It was assigned on November 21, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Corey R. Fehnel?
Dr. Corey R. Fehnel is a neurocritical care physician in Boston, Massachusetts. The primary specialty in the NPI Registry is Neurocritical Care Physician (taxonomy code 2084A2900X).
Where does Dr. Corey R. Fehnel practice?
Dr. Fehnel practices at 330 Brookline Avenue, Boston, MA 02215. Dr. Fehnel's primary practice is Beth Israel Deaconess Medical Center in Boston, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Dr. Fehnel to 1 medical group.
What is Dr. Corey R. Fehnel's office phone number?
The practice phone on file for Dr. Fehnel is (617) 667-7000.
What is Dr. Corey R. Fehnel's medical license number?
Dr. Fehnel holds Massachusetts license 238440.
Which hospitals is Dr. Corey R. Fehnel affiliated with?
Dr. Fehnel practices at Beth Israel Deaconess Medical Center in Boston, Massachusetts.
What medical group is Dr. Corey R. Fehnel part of?
Dr. Fehnel is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI links Dr. Fehnel to 1 more medical group.
Does Dr. Corey R. Fehnel accept Medicare?
Yes. CMS data shows Dr. Fehnel billed Medicare for 198 services in 2024, and Dr. Fehnel accepts Medicare assignment.
How many Medicare patients does Dr. Corey R. Fehnel see?
CMS counts 66 Medicare patients who saw Dr. Fehnel in 2024, with an average age of 76.
Is Dr. Corey R. Fehnel board certified?
Yes. Dr. Fehnel is board certified in neurocritical care by the American Board of Emergency Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Corey R. Fehnel bill to Medicare?
In 2024, Dr. Fehnel's most billed Medicare services were critical care (99291) and critical care (99292).
Where did Dr. Corey R. Fehnel go to medical school?
Dr. Fehnel graduated from University of Rochester School of Medicine and Dentistry in 2006.
Has Dr. Corey R. Fehnel received payments from drug or device companies?
CMS Open Payments shows $5 in general payments to Dr. Fehnel from 1 company from 2021 to 2021. The largest total came from UCB, Inc.
How long has Dr. Corey R. Fehnel been practicing?
Dr. Fehnel graduated from medical school in 2006, 20 years ago.
Does Dr. Corey R. Fehnel do research?
Dmand AI links 44 publications to Dr. Fehnel, published from 2013 to 2025.
Who does Dr. Corey R. Fehnel publish with?
Dr. Fehnel's most frequent co-authors are Susanne Muehlschlegel, MD (5 shared papers), Christopher S. Ogilvy, MD (5 shared papers) and Brian Silver, MD (5 shared papers).
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