William Frappaolo
NPI 1306546577 · Certified Registered Nurse Anesthetist · Downey, CA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Frappaolo is a Certified Registered Nurse Anesthetist provider in Downey, CA (NPI 1306546577).
Provider details
- NPI number
- 1306546577
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 95164803 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2023-03-07
- Last updated
- 2023-06-28
- Certified
- 2023-03-07
Frequently asked questions
- What is William Frappaolo's NPI number?
- William Frappaolo's National Provider Identifier (NPI) is 1306546577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Frappaolo's specialty?
- William Frappaolo is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Frappaolo located?
- William Frappaolo's practice location on file with NPPES is 9333 Imperial Hwy, Downey, CA 90242-2812.
- What is William Frappaolo's phone number?
- The practice phone number listed in the NPPES registry for William Frappaolo is (833) 573-2273.
- Does William Frappaolo accept Medicare?
- William Frappaolo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Frappaolo's NPI active?
- Yes — William Frappaolo's NPI (1306546577) is active in the NPPES registry as of the last update on 2023-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.