Dr. William Allen Gillespie, MD
- Part D claims, 2024
- 25
- Industry payments
- $2,937
- Affiliated sites
- 1
- Medical group
- 1
- State licenses
- 2
- Practice address
- 21 Grand Street, Hartford, CT 06106
- Practice phone
- Call (860) 550-7500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Charter Oak Health Center - Hartford (Grand St)
FQHC - Main Site · Hartford, Connecticut
Find Dr. Gillespie'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 Allen Gillespie is a pediatrician in Hartford, Connecticut
Dr. Gillespie practices at Charter Oak Health Center - Hartford (Grand St) in Hartford, Connecticut.
Dr. Gillespie's NPI, 1013343334, was assigned on September 18, 2013. Dr. Gillespie holds Connecticut license 037591.
- NPI
- 1013343334NPI Registry (opens in a new tab)
- NPI enumeration date
- September 18, 2013
- NPI status
- Active
- Practice phone
- (860) 550-7500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William Allen Gillespie practices at Charter Oak Health Center - Hartford (Grand St) in Hartford, Connecticut
Dr. Gillespie's primary practice is Charter Oak Health Center - Hartford (Grand St), at 21 Grand Street, Hartford, CT 06106 in Capitol County. The practice phone is (860) 550-7500.
- Charter Oak Health Center - Hartford (Grand St)21 Grand Street, Hartford, CT 06106 · Capitol CountyPhone(860) 550-7500
Source: Dmand AI Affiliation Data
Dr. William Allen Gillespie is affiliated with 1 site of care and 1 medical group
Dr. Gillespie's primary practice is Charter Oak Health Center - Hartford (Grand St) in Hartford, Connecticut. The medical group on file is Charter Oak Health Center. Dr. Gillespie's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Allen Gillespie's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gillespie practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Charter Oak Health Center - Hartford (Grand St) | 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 Allen Gillespie is one of 788 pediatricians in Connecticut
Pediatrics is Dr. Gillespie's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dmand AI has Dr. Gillespie's licenses on file in 2 states: Connecticut and New York.
Specialties and state licenses
- Pediatrics, ConnecticutPrimary
- New York license
Pediatricians near Dr. Gillespie
Counts of pediatricians 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 Allen Gillespie's patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Dr. Gillespie's median patient age at 11, with 42% women.
Dr. Gillespie's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 11
Patient panel by sex, all payers
- Women42%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. William Allen Gillespie wrote 25 Medicare Part D claims in 2024
In 2024, Dr. Gillespie wrote 25 Medicare Part D claims. 56% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $7,619 in total drug cost. In 2022, CMS named 12 claims across 1 drug.
Dr. Gillespie's Part D claims by kind of drug, 2024
- Generic14 claims56%
- Brand-name11 claims44%
Dr. Gillespie's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 122023: 12No change
Drugs named by CMS: 1 in 2023, 1 in 2022.
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 Allen Gillespie received $2,937 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Gillespie from 1 drug or device company in 2017. Speaker and faculty fees make up the largest share, 100% of the total. Genentech, Inc. paid the most, $2,937.
Companies that paid Dr. Gillespie the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Allen Gillespie'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 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) |
| 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 Allen Gillespie
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 Allen Gillespie's NPI number?
Dr. William Allen Gillespie's NPI number is 1013343334. It was assigned on September 18, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. William Allen Gillespie?
Dr. William Allen Gillespie is a pediatrician in Hartford, Connecticut. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. William Allen Gillespie practice?
Dr. Gillespie practices at 21 Grand Street, Hartford, CT 06106. Dr. Gillespie's primary practice is Charter Oak Health Center - Hartford (Grand St) in Hartford, Connecticut.
What is Dr. William Allen Gillespie's office phone number?
The practice phone on file for Dr. Gillespie is (860) 550-7500.
What is Dr. William Allen Gillespie's medical license number?
Dr. Gillespie holds Connecticut license 037591, one of the licenses on file in 2 states.
Which states has Dr. William Allen Gillespie been licensed in?
Dmand AI has state licenses on file for Dr. Gillespie in Connecticut and New York.
What medical group is Dr. William Allen Gillespie part of?
Dr. Gillespie is linked to Charter Oak Health Center.
What drugs does Dr. William Allen Gillespie prescribe most?
In 2023 Medicare Part D data, Dr. Gillespie's most prescribed drugs by claims were Eliquis.
Has Dr. William Allen Gillespie received payments from drug or device companies?
CMS Open Payments shows $2,937 in general payments to Dr. Gillespie from 1 company from 2017 to 2017. The largest total came from Genentech, Inc.
How long has Dr. William Allen Gillespie been practicing?
Dr. Gillespie's NPI was assigned in 2013.
Selling to pediatrics practices?
See pediatricians 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