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DR. TIMOTHY PAUL MARTENS MD
NPI 1053554550
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Loma Linda, CA

Active since April 14, 2009PECOS Enrolled
11234 ANDERSON ST, LOMA LINDA, CA 92354(909) 558-4354 Get Directions Write a Review

NPPES record last updated: December 19, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Timothy Paul Martens Md NPPES

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

DR. TIMOTHY PAUL MARTENS MD (NPI 1053554550) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Loma Linda, California, licensed in California (C130503) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1053554550
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameDR. TIMOTHY PAUL MARTENSCredential: MD
Location Address11234 ANDERSON STLoma Linda, CA 92354-2804
Mailing Address11175 Campus St Ste 21121Loma Linda, CA 92350-1700 · (909) 558-4354 · Fax (909) 558-0348
Phone(909) 558-4354
Sole ProprietorNo
Enumeration DateApril 14, 2009
Last NPPES UpdateDecember 19, 2017
✔ NPI 1053554550 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
License✔ Licensed in CA · C130503
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
11234 ANDERSON ST, Loma Linda, CA 92354
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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 (PECOS)

Dr. Timothy Paul Martens 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 Reassignments

2

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

Faculty Physicians And Surgeons Of Llusm
Same address
Anatomic Pathology & Clinical Pathology
11234 ANDERSON ST
Loma Linda, CA 92354
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
NPI 1245605781 (909) 558-6122
North Shore - Lij Medical PC
2,415 mi
Internal Medicine
270-05 76TH AVE
New Hyde Park, NY 11040
  • Reassigned Medicare billing, New York enrollment
  • 9,353 clinicians in this Medicare group
NPI 1790043479 (516) 465-8089

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 92354 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
$179.42 typical visit price
range $59.60 – $179.42
Typical copayment $44.85 (range $14.90 – $44.85)
Most-billed visit code 99205
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
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.

ELYSE LAUREN GURAN
Anesthesiology
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4015
SAMUEL COOK CHAMBI
Anesthesiology
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4015
LUIS MIGUEL OLMEDO TEMICH MD
General Practice
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2822
HYUKJE SUNG MD, MA
Preventive Medicine (Occupational Medicine)
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-6491
JEFFERSON BRANCH RICHARDS
Student in an Organized Health Care Education/Training Program
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4074
JOSEPH UNIS M.D.
Radiology (Diagnostic Radiology)
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-8311
MARINA LIU M.D.
Anesthesiology
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4475
JOSEPH M WILKINSON CRNA
Nurse Anesthetist, Certified Registered
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4475

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 Timothy Martens's NPI number?

The NPI number for Timothy Martens is 1053554550. It was assigned to this individual provider in the NPPES registry on April 14, 2009.

Where is Timothy Martens located?

Timothy Martens practices at 11234 Anderson St, Loma Linda, CA 92354. The listed phone number is (909) 558-4354.

What is Timothy Martens's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Timothy Martens enrolled in Medicare?

Yes. Timothy Martens is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Timothy Martens's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Martens reassigns Medicare benefits to 2 organizations: Faculty Physicians And Surgeons Of Llusm (Loma Linda, CA) and North Shore - Lij Medical PC (New Hyde Park, NY). 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 Timothy Martens'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 Timothy Martens was last updated on December 19, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.