Joann Deasy, P.A-C
NPI 1821105776 · Physician Assistant · San Mateo, CA
Joann Deasy, P.A-C is a Physician Assistant provider in San Mateo, CA (NPI 1821105776).
Provider details
- NPI number
- 1821105776
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA11096 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
Registry dates
- Enumerated
- 2006-08-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joann Deasy's NPI number?
- Joann Deasy's National Provider Identifier (NPI) is 1821105776, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joann Deasy's specialty?
- Joann Deasy is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joann Deasy located?
- Joann Deasy's practice location on file with NPPES is 222 W 39th Ave, San Mateo, CA 94403-4364.
- What is Joann Deasy's phone number?
- The practice phone number listed in the NPPES registry for Joann Deasy is (650) 573-2671.
- Is Joann Deasy's NPI active?
- Yes — Joann Deasy's NPI (1821105776) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.