Dr. Eric N. Fein, MD
- Medicare services, 2022
- 362
- Industry payments
- $243
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Practice address
- 25b Vreeland Rd Ste 110 Suite 110, Florham Park, NJ 07932-1928
- Practice phone
- Call (973) 660-9334
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Keystone Group
Surgical practice · Florham Park, New Jersey
Find Dr. Fein'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. Eric N. Fein is an anesthesiologist in Newark, New Jersey
Dr. Fein practices at Keystone Group in Florham Park, New Jersey.
Dr. Fein's NPI, 1104987502, was assigned on December 12, 2006. Dr. Fein holds New Jersey license MA43823.
- NPI
- 1104987502NPI Registry (opens in a new tab)
- NPI enumeration date
- December 12, 2006
- NPI status
- Active
- Practice phone
- (973) 660-9334
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eric N. Fein practices in Florham Park and Newark
Dr. Fein's primary practice is Keystone Group, at 25b Vreeland Rd Ste 110 Suite 110, Florham Park, NJ 07932-1928. The practice phone is (973) 660-9334. The NPI Registry lists Dr. Fein's practice address as 150 Bergen St, Newark, NJ 07103.
- Keystone GroupPrimary25b Vreeland Rd Ste 110 Suite 110, Florham Park, NJ 07932-1928Phone(973) 660-9334
- NPI Registry address150 Bergen St, Newark, NJ 07103 · Essex CountyPhone(973) 660-9334
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Eric N. Fein is affiliated with 2 sites of care and 2 medical groups
Dr. Fein's primary practice is Keystone Group in Florham Park, New Jersey. The medical group on file is RWJBarnabas Health Medical Group. Dmand AI also links Dr. Fein to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Eric N. Fein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fein practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Keystone Group | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eric N. Fein is one of 1,613 anesthesiologists in New Jersey
Anesthesiology is Dr. Fein's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Fein is licensed in New Jersey.
Specialties and state licenses
- Anesthesiology, New JerseyPrimary
Anesthesiologists near Dr. Fein
Counts of anesthesiologists 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. Eric N. Fein billed Medicare for 362 services in 2022
CMS data shows 362 Medicare services from Dr. Fein across 8 procedure codes in 2022. Medicare paid $29,576 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Fein's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Anesthesia
- 2021: 6042022: 36240%
Dr. Fein compared with the New Jersey median for anesthesiologists, 2022
- Dr. Fein
- New Jersey median
- Medicare services
- 362vs 923.9 times
Medians across 1,604 anesthesiologists in New Jersey with Dmand AI profiles that report each measure.
Dr. Fein's most billed Medicare procedure codes, 2022
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 anesthesiologists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eric N. Fein's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Fein's median patient age at 62, with 71% women.
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 62
Patient panel by sex, all payers
- Women71%
- Men27%
Source: Dmand AI Patient Panel Data
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Dr. Eric N. Fein received $243 in industry payments from 2016 to 2023
CMS Open Payments shows 16 general payments to Dr. Fein from 9 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $73.
General payments to Dr. Fein by program year, 2016 to 2023
Companies that paid Dr. Fein the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Eric N. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 |
| 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. Eric N. 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. Eric N. Fein's NPI number?
Dr. Eric N. Fein's NPI number is 1104987502. It was assigned on December 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric N. Fein?
Dr. Eric N. Fein is an anesthesiologist in Newark, New Jersey. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Eric N. Fein practice?
Dr. Fein practices at 25b Vreeland Rd Ste 110 Suite 110, Florham Park, NJ 07932-1928. Dr. Fein also practices at 150 Bergen St, Newark, NJ 07103. Dr. Fein's primary practice is Keystone Group in Florham Park, New Jersey. Dmand AI also links Dr. Fein to 1 group practice or clinic and 1 medical group.
What is Dr. Eric N. Fein's office phone number?
The practice phone on file for Dr. Fein is (973) 660-9334.
What is Dr. Eric N. Fein's medical license number?
Dr. Fein holds New Jersey license MA43823.
What medical group is Dr. Eric N. Fein part of?
Dr. Fein is linked to RWJBarnabas Health Medical Group. Dmand AI links Dr. Fein to 1 more medical group.
Does Dr. Eric N. Fein accept Medicare?
Yes. CMS data shows Dr. Fein billed Medicare for 362 services in 2022.
What services does Dr. Eric N. Fein bill to Medicare?
In 2022, Dr. Fein's most billed Medicare services were anesthesia (00731), anesthesia (00811) and anesthesia (00813).
Has Dr. Eric N. Fein received payments from drug or device companies?
CMS Open Payments shows $243 in general payments to Dr. Fein from 9 companies from 2016 to 2023. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Eric N. Fein been practicing?
Dr. Fein graduated from medical school in 1979, 47 years ago.
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