Mark Lowenheim, MD PLLC
NPI 1801106125 · Pediatric Gastroenterology Physician · Port Jefferson Station, NY
Mark Lowenheim, MD PLLC is a Pediatric Gastroenterology Physician organization in Port Jefferson Station, NY (NPI 1801106125).
Provider details
- NPI number
- 1801106125
- Entity type
- Organization
- Primary specialty
- Pediatric Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Lowenheim, Owner(631) 403-4507
- License
- 170700 (NY)
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
Other names (DBA / former)
- Doing business as
- Long Island Pediatric Gastroenterology
Registry dates
- Enumerated
- 2010-10-20
- Last updated
- 2010-10-20
Frequently asked questions
- What is Mark Lowenheim, MD PLLC's NPI number?
- Mark Lowenheim, MD PLLC's National Provider Identifier (NPI) is 1801106125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark Lowenheim, MD PLLC?
- Mark Lowenheim, MD PLLC is classified in the NPPES registry as Pediatric Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lowenheim, MD PLLC located?
- Mark Lowenheim, MD PLLC's practice location on file with NPPES is 1174 Route 112, Port Jefferson Station, NY 11776-8033.
- What is Mark Lowenheim, MD PLLC's phone number?
- The practice phone number listed in the NPPES registry for Mark Lowenheim, MD PLLC is (631) 403-4507.
- Who is the authorized official for Mark Lowenheim, MD PLLC?
- The authorized official listed on Mark Lowenheim, MD PLLC's NPPES record is Mark Lowenheim, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark Lowenheim, MD PLLC's NPI active?
- Yes — Mark Lowenheim, MD PLLC's NPI (1801106125) is active in the NPPES registry as of the last update on 2010-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.