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DR. LEONARD JOSEPH BRENNAN DMD
NPI 1588844724
Dentist - General Practice in Portland, ME

Active since November 05, 2007PECOS Enrolled
1250 CONGRESS ST, PORTLAND, ME 04102(207) 773-2446(207) 773-4990 Get Directions Write a Review

NPPES record last updated: November 5, 2007. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Leonard Joseph Brennan Dmd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LEONARD JOSEPH BRENNAN DMD (NPI 1588844724) is an individual general practice provider in Portland, Maine, licensed in Maine (2905) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1588844724
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. LEONARD JOSEPH BRENNANCredential: DMD
Location Address1250 CONGRESS STPortland, ME 04102-2135
Mailing Address1250 Congress StPortland, ME 04102-2135 · (207) 773-2446 · Fax (207) 773-4990
Phone(207) 773-2446
Fax(207) 773-4990
Sole ProprietorYes
Enumeration DateNovember 5, 2007
✔ NPI 1588844724 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in ME · 2905
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
1250 CONGRESS ST, Portland, ME 04102
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Leonard Joseph Brennan Dmd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.72 typical visit price
range $56.28 – $169.96
Typical copayment $21.68 (range $14.07 – $42.49)
Most-billed visit code 99203
Established Patient
$70.13 typical visit price
range $18.22 – $138.92
Typical copayment $17.53 (range $4.55 – $34.73)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LEONARD J BRENNAN, DMD, LLC
Dentist (General Practice)
1250 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-2446
CORY ERNST
Dentist
1250 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 775-1401
THE DENTAL LOFT
Dentist
1250 CONGRESS ST, SUITE 2
PORTLAND, ME 04102
Cumberland County (207) 773-2446
FREDERICK R MOLANDER, DMD, PA
Dentist (General Practice)
1250 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 775-1401
DR. FREDERICK R. MOLANDER JR. D.M.D.
Dentist (General Practice)
1250 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 775-1401
ERNST DENTISTRY, P.C.
Clinic/Center (Dental)
1250 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 775-1401

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Leonard Brennan's NPI number?

The NPI number for Leonard Brennan is 1588844724. It was assigned to this individual provider in the NPPES registry on November 5, 2007.

Where is Leonard Brennan located?

Leonard Brennan practices at 1250 Congress St, Portland, ME 04102. The listed phone number is (207) 773-2446.

What is Leonard Brennan's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is Leonard Brennan enrolled in Medicare?

Yes. Leonard Brennan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Leonard Brennan was last updated on November 5, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.