Mark H. Lowitt MD, LLC
NPI 1558437921 · Specialist · Baltimore, MD
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark H. Lowitt MD, LLC is a Specialist organization in Baltimore, MD (NPI 1558437921).
Provider details
- NPI number
- 1558437921
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Mark Lowitt, Doctor(410) 321-1195
Specialties & taxonomies
Other Service Providers
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
- 2006-11-28
- Last updated
- 2020-08-22
Frequently asked questions
- What is Mark H. Lowitt MD, LLC's NPI number?
- Mark H. Lowitt MD, LLC's National Provider Identifier (NPI) is 1558437921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark H. Lowitt MD, LLC?
- Mark H. Lowitt MD, LLC is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Mark H. Lowitt MD, LLC located?
- Mark H. Lowitt MD, LLC's practice location on file with NPPES is 6565 N Charles St, Baltimore, MD 21204-6800.
- What is Mark H. Lowitt MD, LLC's phone number?
- The practice phone number listed in the NPPES registry for Mark H. Lowitt MD, LLC is (410) 321-1195.
- Does Mark H. Lowitt MD, LLC accept Medicare?
- Mark H. Lowitt MD, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mark H. Lowitt MD, LLC?
- The authorized official listed on Mark H. Lowitt MD, LLC's NPPES record is Mark Lowitt, Doctor. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark H. Lowitt MD, LLC's NPI active?
- Yes — Mark H. Lowitt MD, LLC's NPI (1558437921) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.