Dr. William T. Essilfie, MD
- Medicare services, 2021
- 52
- Part D claims, 2024
- 32
- Industry payments
- $1,106
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 282 Washington St, Hartford, CT 06106
- Practice phone
- Call (302) 644-9190
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Beebe Outpatient Surgery Center
Hartford, Connecticut
Find Dr. Essilfie'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. William T. Essilfie is a gastroenterologist in Hartford, Connecticut
Dr. Essilfie practices at Beebe Outpatient Surgery Center in Hartford, Connecticut.
Dr. Essilfie's NPI, 1588744627, was assigned on October 16, 2006. Dr. Essilfie graduated from Feinberg School of Medicine in 1996. Dr. Essilfie holds California license A46137.
- NPI
- 1588744627NPI Registry (opens in a new tab)
- NPI enumeration date
- October 16, 2006
- NPI status
- Active
- Practice phone
- (302) 644-9190
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. William T. Essilfie practices at Beebe Outpatient Surgery Center in Hartford, Connecticut
Dr. Essilfie's primary practice is Beebe Outpatient Surgery Center, at 282 Washington St, Hartford, CT 06106 in Capitol County. The practice phone is (302) 644-9190.
- Beebe Outpatient Surgery Center282 Washington St, Hartford, CT 06106 · Capitol CountyPhone(302) 644-9190
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William T. Essilfie is affiliated with 2 sites of care and 1 medical group
Dr. Essilfie's primary practice is Beebe Outpatient Surgery Center in Hartford, Connecticut. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Dr. Essilfie to 1 more physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William T. Essilfie's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Essilfie practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Beebe Outpatient Surgery Center | Available with a free account |
| +1 more affiliated site | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William T. Essilfie is one of 298 gastroenterologists in Connecticut
Gastroenterology is Dr. Essilfie's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Essilfie's licenses on file in 3 states: California, Georgia and Illinois.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
- Georgia license
- Illinois license
Gastroenterologists near Dr. Essilfie
Counts of gastroenterologists 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. William T. Essilfie billed Medicare for 52 services in 2021
CMS data shows 52 Medicare services from Dr. Essilfie across 4 procedure codes in 2021. Medicare paid $6,118 for them.
Dr. Essilfie's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Surgery
- 2020: 02021: 23
- Office and hospital visits
- 2020: 282021: 1836%
- Other services
- 2020: 132021: 1115%
Where Dr. Essilfie's Medicare services took place, 2021
- In an office1835%
- In a facility3465%
Dr. Essilfie compared with the Connecticut median for gastroenterologists, 2021
- Dr. Essilfie
- Connecticut median
- Medicare services
- 52vs 36186% below
- Part D claims
- 13vs 53898% below
Medians across 284 gastroenterologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Essilfie's most billed Medicare procedure codes, 2021
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. Essilfie?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Essilfie and other gastroenterologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William T. Essilfie's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Essilfie's median patient age at 62, with 69% women.
Dr. Essilfie'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
- Women69%
- Men31%
Source: Dmand AI Patient Panel Data
Dr. William T. Essilfie wrote 32 Medicare Part D claims in 2024
In 2024, Dr. Essilfie wrote 32 Medicare Part D claims. 59% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $10,518 in total drug cost. In 2023, CMS named 80 claims across 6 drugs.
Dr. Essilfie's Part D claims by kind of drug, 2024
- Generic19 claims59%
- Brand-name13 claims41%
Dr. Essilfie'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 802024: 1384%
Drugs named by CMS: 1 in 2024, 6 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. William T. Essilfie received $1,106 in industry payments from 2016 to 2021
CMS Open Payments shows 41 general payments to Dr. Essilfie from 14 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 83% of the total. Sebela Pharmaceuticals Inc. paid the most, $185.
General payments to Dr. Essilfie by program year, 2016 to 2021
General payments to Dr. Essilfie by kind, 2016 to 2021
- Food and beverage$92283%
- Gifts$17816%
- Education$61%
Companies that paid Dr. Essilfie the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William T. Essilfie graduated from Feinberg School of Medicine
Dr. Essilfie graduated from Feinberg School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. William T. Essilfie accepts plans from 7 insurance carriers
Dr. Essilfie is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Elevance and LA Care. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
- LA Care
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
Plan types Dr. Essilfie accepts, by number of carriers
- Medicare7
- PPO5
- HMO4
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. William T. Essilfie'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. William T. Essilfie
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. William T. Essilfie's NPI number?
Dr. William T. Essilfie's NPI number is 1588744627. It was assigned on October 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William T. Essilfie?
Dr. William T. Essilfie is a gastroenterologist in Hartford, Connecticut. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. William T. Essilfie practice?
Dr. Essilfie practices at 282 Washington St, Hartford, CT 06106. Dr. Essilfie's primary practice is Beebe Outpatient Surgery Center in Hartford, Connecticut. Dmand AI also links Dr. Essilfie to 1 physician office.
What is Dr. William T. Essilfie's office phone number?
The practice phone on file for Dr. Essilfie is (302) 644-9190.
What is Dr. William T. Essilfie's medical license number?
Dr. Essilfie holds California license A46137, one of the licenses on file in 3 states.
Which states has Dr. William T. Essilfie been licensed in?
Dmand AI has state licenses on file for Dr. Essilfie in California (1989 to 2027), Georgia (1989 to 1997) and Illinois (1988 to 1990).
What medical group is Dr. William T. Essilfie part of?
Dr. Essilfie is linked to Optum - Downtown Los Angeles.
Does Dr. William T. Essilfie accept Medicare?
Yes. CMS data shows Dr. Essilfie billed Medicare for 52 services in 2021.
What services does Dr. William T. Essilfie bill to Medicare?
In 2021, Dr. Essilfie's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45378) and surgery: digestive system (43239).
Where did Dr. William T. Essilfie go to medical school?
Dr. Essilfie graduated from Feinberg School of Medicine in 1996.
Show 4 more questionsShow fewer questions
What drugs does Dr. William T. Essilfie prescribe most?
In 2024 Medicare Part D data, Dr. Essilfie's most prescribed drugs by claims were Soliqua 100-33.
Has Dr. William T. Essilfie received payments from drug or device companies?
CMS Open Payments shows $1,106 in general payments to Dr. Essilfie from 14 companies from 2016 to 2021. The largest total came from Sebela Pharmaceuticals Inc.
How long has Dr. William T. Essilfie been practicing?
Dr. Essilfie graduated from medical school in 1996, 30 years ago.
What insurance does Dr. William T. Essilfie accept?
Dr. Essilfie is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Elevance and LA Care. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
Selling to gastroenterology practices?
See gastroenterologists in Connecticut by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card