Mary Jacob, M.D.
NPI 1225321755 · Emergency Medicine Physician · Bethesda, MD
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Jacob, M.D. is a Emergency Medicine Physician provider in Bethesda, MD (NPI 1225321755).
Provider details
- NPI number
- 1225321755
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- D0077419 (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
15 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2011-05-17
- Last updated
- 2026-03-10
- Certified
- 2026-03-10
Frequently asked questions
- What is Mary Jacob's NPI number?
- Mary Jacob's National Provider Identifier (NPI) is 1225321755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Jacob's specialty?
- Mary Jacob is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Jacob located?
- Mary Jacob's practice location on file with NPPES is 8901 Wisconsin Ave, Bethesda, MD 20889-1541.
- What is Mary Jacob's phone number?
- The practice phone number listed in the NPPES registry for Mary Jacob is (301) 295-8901.
- Does Mary Jacob accept Medicare?
- Mary Jacob is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Jacob's NPI active?
- Yes — Mary Jacob's NPI (1225321755) is active in the NPPES registry as of the last update on 2026-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.