OrganizationActive
Dr. Mark S Castor DDS
NPI 1164649950 · General Practice Dentistry · Austin, TX
Dr. Mark S Castor DDS is a General Practice Dentistry organization in Austin, TX (NPI 1164649950).
Provider details
- NPI number
- 1164649950
- Entity type
- Organization
- Primary specialty
- General Practice DentistryDental Providers
- Organization subpart
- No
- Authorized official
- Mark Castor, Doctor(512) 441-7777
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(89/100 index)
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
1221 W Ben White Blvd
Suite 207 a
Austin, TX 78704-6888
Phone: (512) 441-7777
Fax: (512) 441-7632
Street-level locationGet directions
Mailing address
1221 W Ben White Blvd
Austin, TX 78704-6888
Registry dates
- Enumerated
- 2007-04-20
- Last updated
- 2007-12-26
Frequently asked questions
- What is Dr. Mark S Castor DDS's NPI number?
- Dr. Mark S Castor DDS's National Provider Identifier (NPI) is 1164649950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr. Mark S Castor DDS?
- Dr. Mark S Castor DDS is classified in the NPPES registry as General Practice Dentistry (Dental Providers).
- Where is Dr. Mark S Castor DDS located?
- Dr. Mark S Castor DDS's practice location on file with NPPES is 1221 W Ben White Blvd, Austin, TX 78704-6888.
- What is Dr. Mark S Castor DDS's phone number?
- The practice phone number listed in the NPPES registry for Dr. Mark S Castor DDS is (512) 441-7777.
- Who is the authorized official for Dr. Mark S Castor DDS?
- The authorized official listed on Dr. Mark S Castor DDS's NPPES record is Mark Castor, Doctor. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr. Mark S Castor DDS's NPI active?
- Yes — Dr. Mark S Castor DDS's NPI (1164649950) is active in the NPPES registry as of the last update on 2007-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.