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DR. EUGELYN OPALEC SANTOS DNP, FNP-BC, CPNP
NPI 1871031286
Nurse Practitioner in Palo Alto, CA

Active since February 06, 2017PECOS Enrolled
195 PAGE MILL RD STE 103, PALO ALTO, CA 94306(888) 731-8994 Get Directions Write a Review

NPPES record last updated: February 12, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 12, 2025, Feb 7, 2025, Apr 10, 2018 and 1 more (4 updates tracked since 2017).

About Dr. Eugelyn Opalec Santos Dnp, Fnp-bc, Cpnp NPPES

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

DR. EUGELYN OPALEC SANTOS DNP, FNP-BC, CPNP (NPI 1871031286) is an individual nurse practitioner in Palo Alto, California, licensed in California (95004815) and active in the NPI registry since February 2017. She is enrolled in Medicare PECOS and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1871031286
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameDR. EUGELYN OPALEC SANTOSCredential: DNP, FNP-BC, CPNP
Location Address195 PAGE MILL RD STE 103Palo Alto, CA 94306-2073
Mailing Address7830 Clairemont Mesa Blvd., Suite 100San Diego, CA 92111-1619 · (858) 268-1111 · Fax (858) 268-0761
Phone(888) 731-8994
Sole ProprietorNo
Enumeration DateFebruary 6, 2017
Last NPPES UpdateFebruary 12, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 12, 2025
✔ NPI 1871031286 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 · 95004815
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.
195 PAGE MILL RD STE 103, Palo Alto, CA 94306
Open in Google Maps ↗

Secondary Practice Locations 3

Location 17830 Clairemont Mesa Blvd Ste 100San Diego, CA 92111-1632 · Phone (858) 268-1111 · Fax (858) 268-0761
Location 215611 Pomerado Rd Ste 400Poway, CA 92064-2437 · Phone (858) 675-3100
Location 3111 N Orange Ave Ste 800Orlando, FL 32801-2381 · Phone (888) 731-8994

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Eugelyn Opalec Santos Dnp, Fnp-bc, Cpnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Eugelyn Santos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Emergency And Acute Care Medical Corporation
426 mi
Emergency Medicine
7901 FROST ST
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
  • 1,437 clinicians in this Medicare group
NPI 1437103942 (858) 939-3400

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 94306 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.

MRS. MEGAN LARSEN CRNP
Nurse Practitioner
195 PAGE MILL RD STE 103
PALO ALTO, CA 94306
Santa Clara County (999) 999-9999
DR. MICHAEL FARGUSSON M.D
Emergency Medicine
195 PAGE MILL RD STE 103
PALO ALTO, CA 94306
Santa Clara County (888) 731-8994
MISS BREAHNA WILLIAMS NP
Nurse Practitioner
195 PAGE MILL RD STE 103
PALO ALTO, CA 94306
Santa Clara County (888) 731-8994
THOMAS MORAN M.D.
Obstetrics & Gynecology
195 PAGE MILL RD STE 103
PALO ALTO, CA 94306
Santa Clara County (619) 510-7267
DINA KHAIT NP
Nurse Practitioner (Women's Health)
195 PAGE MILL RD STE 103
PALO ALTO, CA 94306
Santa Clara County (888) 731-8994
CAREN MARIE PFIEFFER NP-C
Nurse Practitioner (Family)
195 PAGE MILL RD STE 103
PALO ALTO, CA 94306
Santa Clara County (888) 731-8994
SYDNEY PIA HERNANDEZ FNP-C
Nurse Practitioner (Family)
195 PAGE MILL RD STE 103
PALO ALTO, CA 94306
Santa Clara County (888) 731-8994
MRS. STEPHANIE CHRISTINE SAHADEO WHNP-BC
Nurse Practitioner (Women's Health)
195 PAGE MILL RD STE 103
PALO ALTO, CA 94306
Santa Clara County (888) 731-8994

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 Eugelyn Santos's NPI number?

The NPI number for Eugelyn Santos is 1871031286. It was assigned to this individual provider in the NPPES registry on February 6, 2017.

Where is Eugelyn Santos located?

Eugelyn Santos practices at 195 Page Mill Rd Ste 103, Palo Alto, CA 94306. The listed phone number is (888) 731-8994.

What is Eugelyn Santos's specialty?

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

Is Eugelyn Santos enrolled in Medicare?

Yes. Eugelyn Santos is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Eugelyn Santos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eugelyn Santos reassigns Medicare benefits to Emergency And Acute Care Medical Corporation (San Diego, 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 Eugelyn Santos'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 Eugelyn Santos was last updated on February 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.