Mary Hannan, M.D.
NPI 1851787824 · Internal Medicine Physician · Washington, DC
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Hannan, M.D. is a Internal Medicine Physician provider in Washington, DC (NPI 1851787824).
Provider details
- NPI number
- 1851787824
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 276673 (MA)
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
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 15 Parkman StreetWang Building, 5th FloorBoston, MA 02114Phone: (617) 724-6610
- 3400 Spruce StPhiladelphia, PA 19104-4238Phone: (215) 662-2200
Registry dates
- Enumerated
- 2015-04-07
- Last updated
- 2023-09-21
- Certified
- 2023-09-21
Frequently asked questions
- What is Mary Hannan's NPI number?
- Mary Hannan's National Provider Identifier (NPI) is 1851787824, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Hannan's specialty?
- Mary Hannan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Hannan located?
- Mary Hannan's practice location on file with NPPES is Red Team Primary Care, Washington, DC 20422.
- What is Mary Hannan's phone number?
- The practice phone number listed in the NPPES registry for Mary Hannan is (202) 745-8000.
- Does Mary Hannan accept Medicare?
- Mary Hannan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Hannan's NPI active?
- Yes — Mary Hannan's NPI (1851787824) is active in the NPPES registry as of the last update on 2023-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.