Blake Duffy, MD
NPI 1942887252 · Anesthesiology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Blake Duffy, MD is a Anesthesiology Physician provider in Baltimore, MD (NPI 1942887252).
Provider details
- NPI number
- 1942887252
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2021-03-24
- Last updated
- 2025-06-16
- Certified
- 2025-06-16
Frequently asked questions
- What is Blake Duffy's NPI number?
- Blake Duffy's National Provider Identifier (NPI) is 1942887252, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Blake Duffy's specialty?
- Blake Duffy is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Blake Duffy located?
- Blake Duffy's practice location on file with NPPES is 22 S Greene St, Baltimore, MD 21201-1544.
- What is Blake Duffy's phone number?
- The practice phone number listed in the NPPES registry for Blake Duffy is (410) 328-9878.
- Does Blake Duffy accept Medicare?
- Blake Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Blake Duffy's NPI active?
- Yes — Blake Duffy's NPI (1942887252) is active in the NPPES registry as of the last update on 2025-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.