Ryan Alanzalon, MD
NPI 1174882385 · Pediatric Cardiology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Alanzalon, MD is a Pediatric Cardiology Physician provider in Palo Alto, CA (NPI 1174882385).
Provider details
- NPI number
- 1174882385
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A127373 (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
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 4405 Vandever AveSan Diego, CA 92120-3315Phone: (619) 528-5000
Registry dates
- Enumerated
- 2012-05-08
- Last updated
- 2024-04-11
- Certified
- 2024-04-11
Frequently asked questions
- What is Ryan Alanzalon's NPI number?
- Ryan Alanzalon's National Provider Identifier (NPI) is 1174882385, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Alanzalon's specialty?
- Ryan Alanzalon is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Alanzalon located?
- Ryan Alanzalon's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Ryan Alanzalon's phone number?
- The practice phone number listed in the NPPES registry for Ryan Alanzalon is (650) 497-8000.
- Does Ryan Alanzalon accept Medicare?
- Ryan Alanzalon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Alanzalon's NPI active?
- Yes — Ryan Alanzalon's NPI (1174882385) is active in the NPPES registry as of the last update on 2024-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.