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LOREN YGLECIAS FNP-C
NPI 1619849759
Nurse Practitioner in Oakland, CA

Active since September 18, 2025PECOS EnrolledAccepts Medicare Assignment
3451 E 12TH ST, OAKLAND, CA 94601(510) 535-3926(510) 535-4189 Get Directions Write a Review

NPPES record last updated: September 26, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Loren Yglecias Fnp-c NPPES

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

LOREN YGLECIAS FNP-C (NPI 1619849759) is an individual nurse practitioner in Oakland, California, licensed in California (95037007) and active in the NPI registry since September 2025. He is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1619849759
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameLOREN YGLECIASCredential: FNP-C
Location Address3451 E 12TH STOakland, CA 94601-3463
Mailing Address3451 E 12th StOakland, CA 94601-3463 · (510) 535-3926 · Fax (510) 535-4189
Phone(510) 535-3926
Fax(510) 535-4189
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 18, 2025
Last NPPES UpdateSeptember 26, 2025
NPPES CertifiedSeptember 26, 2025
✔ NPI 1619849759 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 · 95037007
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.
3451 E 12TH ST, Oakland, CA 94601
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Loren Yglecias Fnp-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID143718890
PECOS Enrollment IDI20251023003130
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 Loren Yglecias reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

La Clinica De La Raza Inc
Same address
Federally Qualified Health Center (FQHC)
3451 E 12TH ST
Oakland, CA 94601
  • Reassigned Medicare billing, California enrollment
  • 187 clinicians in this Medicare group
NPI 1144336181 (510) 535-4000

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 94601 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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. KEN MAKIO MARRINER M.D.
Family Medicine
3451 E 12TH ST
OAKLAND, CA 94601
Alameda County (510) 535-3500
MS. MARSHA L GUBSER LCSW
Social Worker (Clinical)
3451 E 12TH ST
OAKLAND, CA 94601
Alameda County (925) 363-2005
REBECCA RUSH RN
Registered Nurse (Community Health)
3451 E 12TH ST
OAKLAND, CA 94601
Alameda County (510) 535-3735
MONICA SAN BASILIO FNP
Nurse Practitioner
3451 E 12TH ST
OAKLAND, CA 94601
Alameda County (510) 535-3500
SIVAN SADEH FNP-C
Nurse Practitioner (Family)
3451 E 12TH ST
OAKLAND, CA 94601
Alameda County (510) 535-3500
ANNA GABRIELA YCAZA RN,FNP-C
Nurse Practitioner (Family)
3451 E 12TH ST
OAKLAND, CA 94601
Alameda County (510) 535-2940
LAYLA WELBORN FNP
Nurse Practitioner (Family)
3451 E 12TH ST
OAKLAND, CA 94601
Alameda County (510) 535-3500
DR. JESSIE LIU MD
Hospitalist
3451 E 12TH ST
OAKLAND, CA 94601
Alameda County (510) 535-3500

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 Loren Yglecias's NPI number?

The NPI number for Loren Yglecias is 1619849759. It was assigned to this individual provider in the NPPES registry on September 18, 2025.

Where is Loren Yglecias located?

Loren Yglecias practices at 3451 E 12th St, Oakland, CA 94601. The listed phone number is (510) 535-3926.

What is Loren Yglecias's specialty?

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

Is Loren Yglecias enrolled in Medicare?

Yes. Loren Yglecias is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Loren Yglecias's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Loren Yglecias reassigns Medicare benefits to La Clinica De La Raza Inc (Oakland, 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 Loren Yglecias'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 Loren Yglecias was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.