Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.
NPI 1497760987 · Family Medicine Physician · Rancho Cucamonga, CA
Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc. is a Family Medicine Physician organization in Rancho Cucamonga, CA (NPI 1497760987).
Provider details
- NPI number
- 1497760987
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Viet Ta, President(909) 484-4900
- License
- A77358 (CA)
Specialties & taxonomies
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
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
Other names (DBA / former)
- Doing business as
- Foothill Primary Care
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2012-03-09
Frequently asked questions
- What is Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.'s NPI number?
- Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.'s National Provider Identifier (NPI) is 1497760987, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.?
- Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc. is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc. located?
- Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.'s practice location on file with NPPES is 8235 Rochester Ave Ste 110, Rancho Cucamonga, CA 91730-0719.
- What is Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc. is (909) 484-4900.
- Who is the authorized official for Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.?
- The authorized official listed on Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.'s NPPES record is Viet Ta, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.'s NPI active?
- Yes — Viet D. Ta, MD & Tiffany L. Quan, MD Medical Associates Inc.'s NPI (1497760987) is active in the NPPES registry as of the last update on 2012-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.