William J. Kornrich MD PC
NPI 1801138268 · Internal Medicine Physician · Riverhead, NY
William J. Kornrich MD PC is a Internal Medicine Physician organization in Riverhead, NY (NPI 1801138268).
Provider details
- NPI number
- 1801138268
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Kornrich, President(631) 727-6122
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
13 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
- 2013-03-25
- Last updated
- 2013-03-25
Frequently asked questions
- What is William J. Kornrich MD PC's NPI number?
- William J. Kornrich MD PC's National Provider Identifier (NPI) is 1801138268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William J. Kornrich MD PC?
- William J. Kornrich MD PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William J. Kornrich MD PC located?
- William J. Kornrich MD PC's practice location on file with NPPES is 887 Old Country Rd, Riverhead, NY 11901-2115.
- What is William J. Kornrich MD PC's phone number?
- The practice phone number listed in the NPPES registry for William J. Kornrich MD PC is (631) 727-6122.
- Who is the authorized official for William J. Kornrich MD PC?
- The authorized official listed on William J. Kornrich MD PC's NPPES record is William Kornrich, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William J. Kornrich MD PC's NPI active?
- Yes — William J. Kornrich MD PC's NPI (1801138268) is active in the NPPES registry as of the last update on 2013-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.