1. Home
  2. Directory
  3. California
  4. Palo Alto
  5. Nurse Practitioner
  6. NPI Profile

CARMEN AGUILAR MANDAC NP
NPI 1033559307
Nurse Practitioner in Palo Alto, CA

Active since July 01, 2013PECOS Enrolled
770 WELCH RD, SUITE 100, PALO ALTO, CA 94304(650) 725-8771 Get Directions Write a Review

NPPES record last updated: April 26, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Carmen Aguilar Mandac Np NPPES

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

CARMEN AGUILAR MANDAC NP (NPI 1033559307) is an individual nurse practitioner in Palo Alto, California, licensed in California (95000794) and active in the NPI registry since July 2013. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1033559307
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameCARMEN AGUILAR MANDACCredential: NP
Location Address770 WELCH RD, SUITE 100Palo Alto, CA 94304-1511
Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000
Phone(650) 725-8771
Sole ProprietorNo
Enumeration DateJuly 1, 2013
Last NPPES UpdateApril 26, 2023
NPPES CertifiedApril 26, 2023
✔ NPI 1033559307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95000794
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.
Also ListedRegistered NurseTaxonomy 163W00000X · License 845690 (CA), 657489 (NY)
Also ListedNurse Practitioner · PediatricsTaxonomy 363LP0200X · License 382437 (NY)
770 WELCH RD, Palo Alto, CA 94304
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Carmen Aguilar Mandac Np 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 Carmen Mandac reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lpch Medical Group Div Of Lucile
0.1 mi
Children
725 WELCH RD
Palo Alto, CA 94304
  • Reassigned Medicare billing, California enrollment
  • 3,617 clinicians in this Medicare group
NPI 1417907940 (650) 498-6762

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 94304 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.

DR. YUSRA NAZAR HUSSAIN M.D.
Internal Medicine (Geriatric Medicine)
770 WELCH RD, SUITE # 250
PALO ALTO, CA 94304
Santa Clara County (650) 328-1676
SHELLEY AGGARWAL MD
Pediatrics (Adolescent Medicine)
770 WELCH RD, DIVISION OF ADOLESCENT MEDICINE
PALO ALTO, CA 94304
Santa Clara County (650) 736-9557
DR. JENNIFER LEE HWANG DUDA MD
Pediatrics (Pediatric Hematology-Oncology)
770 WELCH RD, SUITE 261
PALO ALTO, CA 94304
Santa Clara County (650) 497-8953
JACK H KOUMJIAN DDS
Dentist (Prosthodontics)
770 WELCH RD, STE 280
PALO ALTO, CA 94304
Santa Clara County (650) 347-3426
DR. SHAWN MOSHREFI M.D.
Student in an Organized Health Care Education/Training Program
770 WELCH RD, DIV OF PLASTIC SURGERY STE 400
PALO ALTO, CA 94304
Santa Clara County (650) 723-5824
ALEXANDER LI
Surgery (Plastic and Reconstructive Surgery)
770 WELCH RD, ATTN: ALEXANDER LI, PLASTIC SURGERY
PALO ALTO, CA 94304
Santa Clara County (650) 723-5824
LUCILE PACKARD CHILDREN'S HOSPITAL
Clinic/Center
770 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 721-2589
ALI SALIM M.D.
Plastic Surgery
770 WELCH RD, SUITE 400 - STANFORD PLASTIC SURGERY
PALO ALTO, CA 94304
Santa Clara County (650) 723-5824

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 Carmen Mandac's NPI number?

The NPI number for Carmen Mandac is 1033559307. It was assigned to this individual provider in the NPPES registry on July 1, 2013.

Where is Carmen Mandac located?

Carmen Mandac practices at 770 Welch Rd Suite 100, Palo Alto, CA 94304. The listed phone number is (650) 725-8771.

What is Carmen Mandac's specialty?

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

Is Carmen Mandac enrolled in Medicare?

Yes. Carmen Mandac is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Carmen Mandac's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carmen Mandac reassigns Medicare benefits to Lpch Medical Group Div Of Lucile (Palo Alto, 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 Carmen Mandac'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 Carmen Mandac was last updated on April 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.