Mary Kramer
NPI 1821017757 · Internal Medicine Physician · Charlotte Hall, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Kramer is a Internal Medicine Physician provider in Charlotte Hall, MD (NPI 1821017757).
Provider details
- NPI number
- 1821017757
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- D0022102 (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
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
- 2006-07-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Kramer's NPI number?
- Mary Kramer's National Provider Identifier (NPI) is 1821017757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Kramer's specialty?
- Mary Kramer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Kramer located?
- Mary Kramer's practice location on file with NPPES is 37767 Market Dr, Charlotte Hall, MD 20622-3188.
- What is Mary Kramer's phone number?
- The practice phone number listed in the NPPES registry for Mary Kramer is (301) 884-7322.
- Does Mary Kramer accept Medicare?
- Mary Kramer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Kramer's NPI active?
- Yes — Mary Kramer's NPI (1821017757) 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.