Colleen Hanlon
NPI 1255800538 · Anesthesiology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Hanlon is a Anesthesiology Physician provider in Baltimore, MD (NPI 1255800538).
Provider details
- NPI number
- 1255800538
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- D0102030 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- Mercy Medical Center, 345 St. Paul PlaceBunting Building, 7th FloorBaltimore, MD 21202Phone: (410) 332-9694
Registry dates
- Enumerated
- 2018-11-16
- Last updated
- 2025-04-30
- Certified
- 2025-04-30
Frequently asked questions
- What is Colleen Hanlon's NPI number?
- Colleen Hanlon's National Provider Identifier (NPI) is 1255800538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Hanlon's specialty?
- Colleen Hanlon is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Colleen Hanlon located?
- Colleen Hanlon's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Colleen Hanlon's phone number?
- The practice phone number listed in the NPPES registry for Colleen Hanlon is (410) 955-3080.
- Does Colleen Hanlon accept Medicare?
- Colleen Hanlon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Hanlon's NPI active?
- Yes — Colleen Hanlon's NPI (1255800538) is active in the NPPES registry as of the last update on 2025-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.