Ylayaly Bianco, MD
NPI 1558421768 · Maternal & Fetal Medicine Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ylayaly Bianco, MD is a Maternal & Fetal Medicine Physician provider in Palo Alto, CA (NPI 1558421768).
Provider details
- NPI number
- 1558421768
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A88919 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
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)
- 300 Pasteur Dr Rm G3025317Stanford, CA 94305-2200Phone: (650) 725-8623Fax: (650) 723-7737
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2024-04-19
- Certified
- 2024-04-19
Frequently asked questions
- What is Ylayaly Bianco's NPI number?
- Ylayaly Bianco's National Provider Identifier (NPI) is 1558421768, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ylayaly Bianco's specialty?
- Ylayaly Bianco is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ylayaly Bianco located?
- Ylayaly Bianco's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Ylayaly Bianco's phone number?
- The practice phone number listed in the NPPES registry for Ylayaly Bianco is (650) 497-8000.
- Does Ylayaly Bianco accept Medicare?
- Ylayaly Bianco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ylayaly Bianco's NPI active?
- Yes — Ylayaly Bianco's NPI (1558421768) is active in the NPPES registry as of the last update on 2024-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.