Ruth G. Diaz MD PC
NPI 1265559884 · Internal Medicine Physician · Smithtown, NY
Ruth G. Diaz MD PC is a Internal Medicine Physician organization in Smithtown, NY (NPI 1265559884).
Provider details
- NPI number
- 1265559884
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ruth Diaz, Owner(631) 265-4200
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
- 2007-03-26
- Last updated
- 2018-08-06
Frequently asked questions
- What is Ruth G. Diaz MD PC's NPI number?
- Ruth G. Diaz MD PC's National Provider Identifier (NPI) is 1265559884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ruth G. Diaz MD PC?
- Ruth G. Diaz MD PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth G. Diaz MD PC located?
- Ruth G. Diaz MD PC's practice location on file with NPPES is 994 W Jericho Tpke Ste 201, Smithtown, NY 11787-3234.
- What is Ruth G. Diaz MD PC's phone number?
- The practice phone number listed in the NPPES registry for Ruth G. Diaz MD PC is (631) 265-4200.
- Who is the authorized official for Ruth G. Diaz MD PC?
- The authorized official listed on Ruth G. Diaz MD PC's NPPES record is Ruth Diaz, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ruth G. Diaz MD PC's NPI active?
- Yes — Ruth G. Diaz MD PC's NPI (1265559884) is active in the NPPES registry as of the last update on 2018-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.