Karen Fernandez, MD
NPI 1417147174 · Pediatric Hematology & Oncology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Fernandez, MD is a Pediatric Hematology & Oncology Physician provider in Palo Alto, CA (NPI 1417147174).
Provider details
- NPI number
- 1417147174
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 57.012520 (OH)
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 tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$171 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 700 Childrens DrColumbus, OH 43205-2664Phone: (614) 722-3553
Registry dates
- Enumerated
- 2007-07-30
- Last updated
- 2025-09-03
- Certified
- 2025-09-03
Frequently asked questions
- What is Karen Fernandez's NPI number?
- Karen Fernandez's National Provider Identifier (NPI) is 1417147174, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Fernandez's specialty?
- Karen Fernandez is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Fernandez located?
- Karen Fernandez's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Karen Fernandez's phone number?
- The practice phone number listed in the NPPES registry for Karen Fernandez is (650) 497-8000.
- Does Karen Fernandez accept Medicare?
- Karen Fernandez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Fernandez's NPI active?
- Yes — Karen Fernandez's NPI (1417147174) is active in the NPPES registry as of the last update on 2025-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.