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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SANDRA LYNN NIBBELINK AHEARN NP
NPI 1326513441
Nurse Practitioner - Family in Oceanside, CA

Active since October 04, 2018PECOS EnrolledAccepts Medicare Assignment
3300 VISTA WAY STE B, OCEANSIDE, CA 92056(760) 967-9900(760) 967-6769 Get Directions Write a Review

NPPES record last updated: October 5, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 5, 2026, Jan 16, 2026, Sep 24, 2024 and 1 more (4 updates tracked since 2018).

About Sandra Lynn Nibbelink Ahearn Np NPPES

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

SANDRA LYNN NIBBELINK AHEARN NP (NPI 1326513441) is an individual family provider in Oceanside, California, licensed in California (NP95007904) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1326513441
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameSANDRA LYNN NIBBELINK AHEARNCredential: NP
Location Address3300 VISTA WAY STE BOceanside, CA 92056-3633
Mailing Address9373 Hazard Way Ste 200, Ste 200San Diego, CA 92123-1226 · (858) 810-8000 · Fax (858) 268-1911
Phone(760) 967-9900
Fax(760) 967-6769
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateOctober 4, 2018
Last NPPES UpdateOctober 5, 20264 updates tracked since enumeration
NPPES CertifiedOctober 5, 2026
✔ NPI 1326513441 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · NP95007904
Also ListedNurse PractitionerTaxonomy 363L00000X · License NP95007904 (CA)
3300 VISTA WAY STE B, Oceanside, CA 92056
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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

Sandra Lynn Nibbelink Ahearn Np 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 ID1850625765
PECOS Enrollment IDI20190626003689
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 Reassignments

2

Medicare enrollment records show Sandra Nibbelink Ahearn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Richard A Weiner MD Inc
25 mi
Pain Medicine
27412 ENTERPRISE CIR W STE 102
Temecula, CA 92590
  • Reassigned Medicare billing, California enrollment
  • 9 clinicians in this Medicare group
NPI 1386797769 (951) 694-6367
Balboa Nephrology Medical Group, Inc.
26 mi
Nephrology
9373 HAZARD WAY STE 200
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
  • 85 clinicians in this Medicare group
NPI 1316997505 (858) 810-8000

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 92056 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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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 4

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

SEASIDE NEPHROLOGY, INC
Internal Medicine (Nephrology)
3300 VISTA WAY STE B
OCEANSIDE, CA 92056
San Diego County (760) 967-9900
NAING TUN KYAW MD
Internal Medicine (Nephrology)
3300 VISTA WAY STE B
OCEANSIDE, CA 92056
San Diego County (760) 967-9900
ANDREW CHI-YEU LIU MD
Internal Medicine (Nephrology)
3300 VISTA WAY STE B
OCEANSIDE, CA 92056
San Diego County (760) 967-9900
TALAR KHARADJIAN MD
Internal Medicine (Nephrology)
3300 VISTA WAY STE B
OCEANSIDE, CA 92056
San Diego County (760) 967-9900

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 Sandra Nibbelink Ahearn's NPI number?

The NPI number for Sandra Nibbelink Ahearn is 1326513441. It was assigned to this individual provider in the NPPES registry on October 4, 2018.

Where is Sandra Nibbelink Ahearn located?

Sandra Nibbelink Ahearn practices at 3300 Vista Way Ste B, Oceanside, CA 92056. The listed phone number is (760) 967-9900.

What is Sandra Nibbelink Ahearn's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Sandra Nibbelink Ahearn enrolled in Medicare?

Yes. Sandra Nibbelink Ahearn 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 organizations bill Medicare for Sandra Nibbelink Ahearn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sandra Nibbelink Ahearn reassigns Medicare benefits to 2 organizations: Richard A Weiner MD Inc (Temecula, CA) and Balboa Nephrology Medical Group, Inc. (San Diego, CA). Each 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 Sandra Nibbelink Ahearn'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 Sandra Nibbelink Ahearn was last updated on October 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days 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.