Corpus StriatumGene Expression ProfilingMacaca mulatta
Dr. Robert Jonathan Fenster, MD, PhD
NPI1801141973
- Medicare services, 2018
- 64
- Part D claims, 2024
- 64
- Publications
- 13
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 81 Highland Ave, Salem, MA 01970
- Practice phone
- Call (978) 354-2065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
MGB Salem Hospital
Salem, Massachusetts
Find Dr. Fenster's professional email, personal email and mobile number
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Dr. Robert Jonathan Fenster is a psychiatrist in Salem, Massachusetts
Dr. Fenster practices at MGB Salem Hospital in Salem, Massachusetts.
Dr. Fenster's NPI, 1801141973, was assigned on July 16, 2012. Dr. Fenster holds Massachusetts license 270775.
NPI and contact details
- NPI
- 1801141973NPI Registry (opens in a new tab)
- NPI enumeration date
- July 16, 2012
- NPI status
- Active
- Practice phone
- (978) 354-2065
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Robert Jonathan Fenster practices at MGB Salem Hospital in Salem, Massachusetts
Dr. Fenster's primary practice is MGB Salem Hospital, at 81 Highland Ave, Salem, MA 01970 in Essex County. The practice phone is (978) 354-2065.
- MGB Salem Hospital81 Highland Ave, Salem, MA 01970 · Essex CountyPhone(978) 354-2065
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert Jonathan Fenster is affiliated with 2 sites of care and 1 medical group
Dr. Fenster's primary practice is MGB Salem Hospital in Salem, Massachusetts. Dr. Fenster is also affiliated with McLean Hospital. The medical group on file is McLean Hospital.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Jonathan Fenster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fenster practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MGB Salem Hospital | 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. Robert Jonathan Fenster is one of 1,857 psychiatrists in Massachusetts
Psychiatry is Dr. Fenster's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Fenster's licenses on file in 2 states: Massachusetts and Washington.
Specialties and state licenses
- Psychiatry, MassachusettsPrimary
- Washington license
Psychiatrists near Dr. Fenster
Counts of psychiatrists 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. Robert Jonathan Fenster billed Medicare for 64 services in 2018
CMS data shows 64 Medicare services from Dr. Fenster across 1 procedure code in 2018. Medicare paid $2,108 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 201864
Paid by Medicare$2,108
Procedure codes1
Dr. Fenster's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 392018: 6464%
Dr. Fenster compared with the Massachusetts median for psychiatrists, 2018
- Dr. Fenster
- Massachusetts median
- Medicare services
- 64vs 17263% below
- Part D claims
- 23vs 9275% below
Medians across 2,056 psychiatrists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Fenster's most billed Medicare procedure codes, 2018
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Jonathan Fenster's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Fenster's median patient age at 44, with 40% women.
Dr. Fenster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Robert Jonathan Fenster wrote 64 Medicare Part D claims in 2024
In 2024, Dr. Fenster wrote 64 Medicare Part D claims. 84% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $224 in total drug cost.
Part D claims, 202464
Drugs named by CMS2
Total drug cost$224
Dr. Fenster's Part D claims by kind of drug, 2024
- Generic54 claims84%
- Brand-name and other10 claims16%
Dr. Fenster's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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. Robert Jonathan Fenster has 13 publications on record
Dmand AI links 13 papers to Dr. Fenster, published from 2014 to 2024. 2020 was the busiest year, with 3. The most frequent topics are Neurons, Corpus Striatum and Extinction, Psychological. Dr. Fenster has published most often in Nat Commun. Dr. Fenster's most frequent co-authors are Zachary Freyberg, MD, PhD and Olga Ponomareva, MD, PhD.
Papers13
Years published2014 to 2024
Dr. Fenster's papers by year, 2014 to 2024
Topics Dr. Fenster writes about most
- Neurons
- Corpus Striatum
- Extinction, Psychological
- Fear
- Huntington Disease
- Stress Disorders, Post-Traumatic
- Brain
- Disease Models, Animal
Dr. Fenster's most frequent co-authors
Recent publications by Dr. Fenster
Neuropsychopharmacology
AmygdalaExtinction, PsychologicalFear
Behavior, AnimalCentral Amygdaloid NucleusConditioning, Psychological
Huntingtin ProteinHuntington DiseaseImmunity, Innate
See who Dr. Fenster researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fenster works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Robert Jonathan Fenster'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Robert Jonathan Fenster
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. Robert Jonathan Fenster's NPI number?
Dr. Robert Jonathan Fenster's NPI number is 1801141973. It was assigned on July 16, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Jonathan Fenster?
Dr. Robert Jonathan Fenster is a psychiatrist in Salem, Massachusetts. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Robert Jonathan Fenster practice?
Dr. Fenster practices at 81 Highland Ave, Salem, MA 01970. Dr. Fenster's primary practice is MGB Salem Hospital in Salem, Massachusetts.
What is Dr. Robert Jonathan Fenster's office phone number?
The practice phone on file for Dr. Fenster is (978) 354-2065.
What is Dr. Robert Jonathan Fenster's medical license number?
Dr. Fenster holds Massachusetts license 270775, one of the licenses on file in 2 states.
Which states has Dr. Robert Jonathan Fenster been licensed in?
Dmand AI has state licenses on file for Dr. Fenster in Massachusetts and Washington.
Which hospitals is Dr. Robert Jonathan Fenster affiliated with?
Dr. Fenster is affiliated with McLean Hospital.
What medical group is Dr. Robert Jonathan Fenster part of?
Dr. Fenster is linked to McLean Hospital.
Does Dr. Robert Jonathan Fenster accept Medicare?
Yes. CMS data shows Dr. Fenster billed Medicare for 64 services in 2018.
What services does Dr. Robert Jonathan Fenster bill to Medicare?
In 2018, Dr. Fenster's most billed Medicare services were hospital inpatient care (99231).
Show 4 more questionsShow fewer questions
What drugs does Dr. Robert Jonathan Fenster prescribe most?
In 2016 Medicare Part D data, Dr. Fenster's most prescribed drugs by claims were Mirtazapine and Sertraline HCl.
How long has Dr. Robert Jonathan Fenster been practicing?
Dr. Fenster graduated from medical school in 2012, 14 years ago.
Does Dr. Robert Jonathan Fenster do research?
Dmand AI links 13 publications to Dr. Fenster, published from 2014 to 2024.
Who does Dr. Robert Jonathan Fenster publish with?
Dr. Fenster's most frequent co-authors are Zachary Freyberg, MD, PhD (1 shared paper) and Olga Ponomareva, MD, PhD (1 shared paper).
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