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KAREN CHRISTY DELA SERNA NATANO NP
NPI 1851118731
Nurse Practitioner in Stanford, CA

Active since September 23, 2024PECOS Enrolled
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: March 27, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 27, 2025, Mar 19, 2025, Sep 23, 2024 (3 updates tracked since 2024).

About Karen Christy Dela Serna Natano Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KAREN CHRISTY DELA SERNA NATANO NP (NPI 1851118731) is an individual nurse practitioner in Stanford, California, licensed in California (95032248) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS, maintains a secondary practice location in Palo Alto, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1851118731
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameKAREN CHRISTY DELA SERNA NATANOCredential: NP
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Phone(650) 723-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateSeptember 23, 2024
Last NPPES UpdateMarch 27, 20253 updates tracked since enumeration
NPPES CertifiedMarch 27, 2025
✔ NPI 1851118731 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95032248
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
300 PASTEUR DR, Stanford, CA 94305
Open in Google Maps ↗

Secondary Practice Location 1

Location 1500 Pasteur Dr # M563Palo Alto, CA 94304-1048 · Phone (650) 723-4000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karen Christy Dela Serna Natano Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8729514559
PECOS Enrollment IDI20241204000458
Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Karen Natano reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Stanford Health Care
Same address
General Acute Care Hospital
300 PASTEUR DRIVE
Stanford, CA 94305
  • Reassigned Medicare billing, California enrollment
  • 4,258 clinicians in this Medicare group
NPI 1437292927 (650) 723-4000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94305 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PRISTA CHARUWORN MD
Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Santa Clara County (650) 723-6661
ANDREW CHARLES PICEL M.D
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
MATTHEW A WRIGHT M.D. PH.D.
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
DR. QUAZI ZUBAIR AL-TARIQ M.D.
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
ANGIE DEE MURKINS NP
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
DR. JAMSHID GHAJAR MD PHD
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
SARA BAKHTARY M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Santa Clara County (650) 723-5252
YU KUANG LAI MD
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Natano's NPI number?

The NPI number for Karen Natano is 1851118731. It was assigned to this individual provider in the NPPES registry on September 23, 2024.

Where is Karen Natano located?

Karen Natano practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Karen Natano's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Karen Natano enrolled in Medicare?

Yes. Karen Natano is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Karen Natano's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Natano reassigns Medicare benefits to Stanford Health Care (Stanford, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Natano's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Karen Natano was last updated on March 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.