Dr. Gregory Boris, DO

  • Derby, CT
  • Emergency medicine physician
NPI1558386292
Medicare services, 2020
35
Part D claims, 2024
55
Publications
1
Hospital affiliations
1
Industry payments
$1,082
Practice address
130 Division St, Derby, CT 06418
Practice phone
Call (203) 732-7500
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Griffin Hospital

Hospital · Derby, Connecticut

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Dr. Gregory Boris is an emergency medicine physician in Derby, Connecticut

Dr. Boris practices at Griffin Hospital in Derby, Connecticut, part of Griffin Hospital.

Dr. Boris' NPI, 1558386292, was assigned on July 13, 2006. Dr. Boris graduated from NYIT College Of Osteopathic Medicine in 1989. Dr. Boris holds Connecticut license 040900.

NPI and contact details
NPI enumeration date
July 13, 2006
NPI status
Active
Practice phone
(203) 732-7500
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1989

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Gregory Boris practices at 2 locations in Derby, Connecticut

Dr. Boris' primary practice is Griffin Hospital, at 130 Division St, Derby, CT 06418 in New Haven County. The practice phone is (203) 732-7500. Dr. Boris also practices at Griffin Hospital, 144 Division St, Derby, CT 06418.

  • Griffin HospitalPrimary
    130 Division St, Derby, CT 06418 · New Haven CountyPhone(203) 732-7500
  • Griffin Hospital
    144 Division St, Derby, CT 06418 · Naugatuck Vly CountyPhone(203) 732-7360

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data

Dr. Gregory Boris is affiliated with 1 site of care and 1 medical group

Dr. Boris' primary practice is Griffin Hospital in Derby, Connecticut, part of Griffin Hospital. The medical group on file is Emergency Physicians of Connecticut.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Gregory Boris' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Boris practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Griffin HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Gregory Boris is one of 683 emergency medicine physicians in Connecticut

Emergency medicine is Dr. Boris' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Boris is licensed in Connecticut.

Specialties and state licenses

  • Emergency medicine, ConnecticutPrimaryLicense 040900 · taxonomy 207P00000X

Emergency medicine physicians near Dr. Boris

Counts of emergency 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. Gregory Boris billed Medicare for 35 services in 2020

CMS data shows 35 Medicare services from Dr. Boris across 1 procedure code in 2020. Medicare paid $4,565 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202035
Paid by Medicare$4,565
Procedure codes1

Dr. Boris' Medicare services by type, 2019 to 2020

  • 2019
  • 2020
Office and hospital visits
2019: 3482020: 3590%

Dr. Boris compared with the Connecticut median for emergency medicine physicians, 2020

  • Dr. Boris
  • Connecticut median
Medicare services
35vs 24386% below
Part D claims
14vs 4871% below

Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.

Dr. Boris' most billed Medicare procedure codes, 2020

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Boris

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gregory Boris' patients have a median age of 43

Across all payers, Dmand AI patient panel data puts Dr. Boris' median patient age at 43, with 28% women.

Dr. Boris' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 43

Patient panel by sex, all payers

  • Women28%
  • Men70%

Source: Dmand AI Patient Panel Data

Dr. Gregory Boris wrote 55 Medicare Part D claims in 2024

In 2024, Dr. Boris wrote 55 Medicare Part D claims for 16 patients. 95% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $20,377 in total drug cost. In 2019, CMS named 37 claims across 3 drugs.

Part D claims, 202455
Drugs named by CMS1
Total drug cost$20,377
Part D patients16

Dr. Boris' Part D claims by kind of drug, 2024

  • Generic52 claims95%
  • Brand-name and other3 claims5%

Dr. Boris' most prescribed drugs by claims, 2021

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2019 to 2021

  • 2019
  • 2021
Claims for drugs CMS names
2019: 372021: 1462%

Drugs named by CMS: 1 in 2021, 3 in 2019.

See all prescribing by Dr. Boris

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. Gregory Boris has 1 publication on record

Dmand AI links 1 paper to Dr. Boris in 2021.

Papers1

Recent publications by Dr. Boris

See all 1 publications and co-authors

See who Dr. Boris researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Boris works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Gregory Boris received $1,082 in industry payments from 2016 to 2020

CMS Open Payments shows 95 general payments to Dr. Boris from 11 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $781.

General payments to Dr. Boris by program year, 2016 to 2020

Companies that paid Dr. Boris the most, 2016 to 2020

Share is of all general payments to this clinician.

See all payments to Dr. Boris

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Gregory Boris graduated from NYIT College Of Osteopathic Medicine

Dr. Boris graduated from NYIT College Of Osteopathic Medicine in 1989.

  1. Medical schoolNYIT College Of Osteopathic Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Gregory Boris's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gregory Boris

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. Gregory Boris' NPI number?

Dr. Gregory Boris' NPI number is 1558386292. It was assigned on July 13, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Gregory Boris?

Dr. Gregory Boris is an emergency medicine physician in Derby, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Gregory Boris practice?

Dr. Boris practices at 130 Division St, Derby, CT 06418. Dr. Boris also practices at 144 Division St, Derby, CT 06418. Dr. Boris' primary practice is Griffin Hospital in Derby, Connecticut, part of Griffin Hospital.

What is Dr. Gregory Boris' office phone number?

The practice phone on file for Dr. Boris is (203) 732-7500.

What is Dr. Gregory Boris' medical license number?

Dr. Boris holds Connecticut license 040900.

Which hospitals is Dr. Gregory Boris affiliated with?

Dr. Boris practices at Griffin Hospital in Derby, Connecticut.

What medical group is Dr. Gregory Boris part of?

Dr. Boris is linked to Emergency Physicians of Connecticut.

Does Dr. Gregory Boris accept Medicare?

Yes. CMS data shows Dr. Boris billed Medicare for 35 services in 2020.

What services does Dr. Gregory Boris bill to Medicare?

In 2020, Dr. Boris' most billed Medicare services were emergency department visit (99285).

Where did Dr. Gregory Boris go to medical school?

Dr. Boris graduated from NYIT College Of Osteopathic Medicine in 1989.

Show 4 more questionsShow fewer questions

What drugs does Dr. Gregory Boris prescribe most?

In 2021 Medicare Part D data, Dr. Boris' most prescribed drugs by claims were Vivitrol.

Has Dr. Gregory Boris received payments from drug or device companies?

CMS Open Payments shows $1,082 in general payments to Dr. Boris from 11 companies from 2016 to 2020. The largest total came from Pfizer Inc.

How long has Dr. Gregory Boris been practicing?

Dr. Boris graduated from medical school in 1989, 37 years ago.

Does Dr. Gregory Boris do research?

Dmand AI links 1 publication to Dr. Boris.

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