Frank Nastanski MD a Professional Corporation
NPI 1265689335 · Specialist · Santa Ana, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frank Nastanski MD a Professional Corporation is a Specialist organization in Santa Ana, CA (NPI 1265689335).
Provider details
- NPI number
- 1265689335
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Mary Zazuetta, Insurance Billing Representative(714) 547-1915
- License
- A68851 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-08-20
- Last updated
- 2015-02-09
Frequently asked questions
- What is Frank Nastanski MD a Professional Corporation's NPI number?
- Frank Nastanski MD a Professional Corporation's National Provider Identifier (NPI) is 1265689335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Frank Nastanski MD a Professional Corporation?
- Frank Nastanski MD a Professional Corporation is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Frank Nastanski MD a Professional Corporation located?
- Frank Nastanski MD a Professional Corporation's practice location on file with NPPES is 999 N Tustin Ave, Santa Ana, CA 92705-3528.
- What is Frank Nastanski MD a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Frank Nastanski MD a Professional Corporation is (714) 547-1915.
- Does Frank Nastanski MD a Professional Corporation accept Medicare?
- Frank Nastanski MD a Professional Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Frank Nastanski MD a Professional Corporation?
- The authorized official listed on Frank Nastanski MD a Professional Corporation's NPPES record is Mary Zazuetta, Insurance Billing Representative. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Frank Nastanski MD a Professional Corporation's NPI active?
- Yes — Frank Nastanski MD a Professional Corporation's NPI (1265689335) is active in the NPPES registry as of the last update on 2015-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.