Mary Mancewicz, MD
NPI 1144349911 · Dermatology Physician · Bethesda, MD
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Mancewicz, MD is a Dermatology Physician provider in Bethesda, MD (NPI 1144349911).
Provider details
- NPI number
- 1144349911
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4301054412 (MI)
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
19 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
- 2007-03-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Mancewicz's NPI number?
- Mary Mancewicz's National Provider Identifier (NPI) is 1144349911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Mancewicz's specialty?
- Mary Mancewicz is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Mancewicz located?
- Mary Mancewicz's practice location on file with NPPES is 5909 Kingswood Rd, Bethesda, MD 20814-1821.
- What is Mary Mancewicz's phone number?
- The practice phone number listed in the NPPES registry for Mary Mancewicz is (301) 897-2992.
- Does Mary Mancewicz accept Medicare?
- Mary Mancewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Mancewicz's NPI active?
- Yes — Mary Mancewicz's NPI (1144349911) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.