LIAM FLANAGAN MD
NPI 1043902505
Hospitalist in La Jolla, CA

Active since May 23, 2023PECOS Enrolled
10666 N TORREY PINES RD, LA JOLLA, CA 92037(858) 554-7909 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2026, May 23, 2023 (2 updates tracked since 2023).

About Liam Flanagan Md NPPES

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

LIAM FLANAGAN MD (NPI 1043902505) is an individual hospitalist provider in La Jolla, California, licensed in California (A210681) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043902505
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameLIAM FLANAGANCredential: MD
Location Address10666 N TORREY PINES RDLa Jolla, CA 92037-1027
Mailing Address10790 Rancho Bernardo RdSan Diego, CA 92127-5705 · (858) 554-7909
Sole ProprietorNo
Enumeration DateMay 23, 2023
Last NPPES UpdateJuly 21, 20262 updates tracked since enumeration
NPPES CertifiedJuly 21, 2026
✔ NPI 1043902505 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in CA · A210681
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License A210681 (CA)
10666 N TORREY PINES RD, La Jolla, CA 92037

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Liam Flanagan Md 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 Liam Flanagan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Same address
Multi-Specialty
10666 N TORREY PINES RD
La Jolla, CA 92037
  • Reassigned Medicare billing, California enrollment
  • 1,598 clinicians in this Medicare group

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 92037 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
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 20

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

Physician Assistant (Medical)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Radiology (Vascular & Interventional Radiology)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine (Cardiovascular Disease)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Internal Medicine (Geriatric Medicine)
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Hospitalist
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Hospitalist
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Podiatrist
10666 N TORREY PINES RD
LA JOLLA, CA 92037
Orthopaedic Surgery
10666 N TORREY PINES RD
LA JOLLA, CA 92037

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 Liam Flanagan's NPI number?

The NPI number for Liam Flanagan is 1043902505. It was assigned to this individual provider in the NPPES registry on May 23, 2023.

Where is Liam Flanagan located?

Liam Flanagan practices at 10666 N Torrey Pines Rd, La Jolla, CA 92037. The listed phone number is (858) 554-7909.

What is Liam Flanagan's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Liam Flanagan enrolled in Medicare?

Yes. Liam Flanagan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Liam Flanagan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Liam Flanagan reassigns Medicare benefits to Scripps Health (La Jolla, 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 Liam Flanagan'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 Liam Flanagan was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.