Cathy Alessi, M.D.
NPI 1134224983 · Geriatric Medicine (Internal Medicine) Physician · North Hills, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cathy Alessi, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in North Hills, CA (NPI 1134224983).
Provider details
- NPI number
- 1134224983
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G68417 (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
Registry dates
- Enumerated
- 2006-09-14
- Last updated
- 2007-07-19
Frequently asked questions
- What is Cathy Alessi's NPI number?
- Cathy Alessi's National Provider Identifier (NPI) is 1134224983, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cathy Alessi's specialty?
- Cathy Alessi is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Cathy Alessi located?
- Cathy Alessi's practice location on file with NPPES is 16111 Plummer St, North Hills, CA 91343-2036.
- What is Cathy Alessi's phone number?
- The practice phone number listed in the NPPES registry for Cathy Alessi is (818) 895-9311.
- Does Cathy Alessi accept Medicare?
- Cathy Alessi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cathy Alessi's NPI active?
- Yes — Cathy Alessi's NPI (1134224983) is active in the NPPES registry as of the last update on 2007-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.