Leonard Joseph Brennan, DMD
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 1250 Congress St, Portland, ME 04102-2161
- Practice phone
- Call (207) 773-2446
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Dental Loft
Dental practice · Portland, Maine
Find Leonard Brennan'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.
Leonard Joseph Brennan is a general practice dentistry in Portland, Maine
Leonard Brennan practices at The Dental Loft in Portland, Maine.
Leonard Brennan's NPI, 1588844724, was assigned on November 5, 2007. Leonard Brennan holds Maine license 2905.
- NPI
- 1588844724NPI Registry (opens in a new tab)
- NPI enumeration date
- November 5, 2007
- NPI status
- Active
- Practice phone
- (207) 773-2446
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Leonard Joseph Brennan practices at The Dental Loft in Portland, Maine
Leonard Brennan's primary practice is The Dental Loft, at 1250 Congress St, Portland, ME 04102-2161. The practice phone is (207) 773-2446.
- The Dental Loft1250 Congress St, Portland, ME 04102-2161Phone(207) 773-2446
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Leonard Joseph Brennan is affiliated with 2 sites of care and 1 medical group
Leonard Brennan's primary practice is The Dental Loft in Portland, Maine. Dmand AI also links Leonard Brennan to 1 physician office 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 Leonard Joseph Brennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Leonard Brennan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Dental Loft | 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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Leonard Joseph Brennan is one of 308 general practice dentistrys in Maine
General practice is Leonard Brennan's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Leonard Brennan is licensed in Maine.
Specialties and state licenses
- General practice dentistry, MainePrimary
General practice dentistrys near Leonard Brennan
Counts of general practice dentistrys 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
Sources for Leonard Joseph Brennan'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (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 Leonard Joseph Brennan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Leonard Joseph Brennan's NPI number?
Leonard Joseph Brennan's NPI number is 1588844724. It was assigned on November 5, 2007, and it is active in the NPI Registry.
What does Leonard Joseph Brennan specialize in?
Leonard Joseph Brennan is a general practice dentistry in Portland, Maine. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does Leonard Joseph Brennan practice?
Leonard Brennan practices at 1250 Congress St, Portland, ME 04102-2161. Leonard Brennan's primary practice is The Dental Loft in Portland, Maine. Dmand AI also links Leonard Brennan to 1 physician office and 1 medical group.
What is Leonard Joseph Brennan's office phone number?
The practice phone on file for Leonard Brennan is (207) 773-2446.
What is Leonard Joseph Brennan's medical license number?
Leonard Brennan holds Maine license 2905.
How long has Leonard Joseph Brennan been practicing?
Leonard Brennan's NPI was assigned in 2007.
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