Siva Ayyar, MD
NPI 1568661452 · Preventive Medicine/Occupational Environmental Medicine Physician · Houston, TX
Siva Ayyar, MD is a Preventive Medicine/Occupational Environmental Medicine Physician provider in Houston, TX (NPI 1568661452).
Provider details
- NPI number
- 1568661452
- Entity type
- Individual
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A93006 (CA)
Specialties & taxonomies
- Preventive Medicine/Occupational Environmental Medicine PhysicianPrimary2083P0500XLicense M2512 (TX)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2007-07-12
- Last updated
- 2015-03-19
Frequently asked questions
- What is Siva Ayyar's NPI number?
- Siva Ayyar's National Provider Identifier (NPI) is 1568661452, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siva Ayyar's specialty?
- Siva Ayyar is listed in the NPPES registry with a primary specialty of Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Siva Ayyar located?
- Siva Ayyar's practice location on file with NPPES is 6641 Grand Blvd, Houston, TX 77021.
- What is Siva Ayyar's phone number?
- The practice phone number listed in the NPPES registry for Siva Ayyar is (832) 308-1010.
- Is Siva Ayyar's NPI active?
- Yes — Siva Ayyar's NPI (1568661452) is active in the NPPES registry as of the last update on 2015-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.