Mark W. Preslan, M.D., LLC
NPI 1952532855 · Ophthalmology Physician · Glen Burnie, MD
Mark W. Preslan, M.D., LLC is a Ophthalmology Physician organization in Glen Burnie, MD (NPI 1952532855).
Provider details
- NPI number
- 1952532855
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Preslan, Owner(443) 572-0655
- License
- D0033771 (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
16 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
- 2009-07-27
- Last updated
- 2013-12-27
Frequently asked questions
- What is Mark W. Preslan, M.D., LLC's NPI number?
- Mark W. Preslan, M.D., LLC's National Provider Identifier (NPI) is 1952532855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark W. Preslan, M.D., LLC?
- Mark W. Preslan, M.D., LLC is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark W. Preslan, M.D., LLC located?
- Mark W. Preslan, M.D., LLC's practice location on file with NPPES is 7671 Quarterfield Rd, Glen Burnie, MD 21061-4998.
- What is Mark W. Preslan, M.D., LLC's phone number?
- The practice phone number listed in the NPPES registry for Mark W. Preslan, M.D., LLC is (443) 572-0655.
- Who is the authorized official for Mark W. Preslan, M.D., LLC?
- The authorized official listed on Mark W. Preslan, M.D., LLC's NPPES record is Mark Preslan, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark W. Preslan, M.D., LLC's NPI active?
- Yes — Mark W. Preslan, M.D., LLC's NPI (1952532855) is active in the NPPES registry as of the last update on 2013-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.