DR. GREGORY FONTANA M.D.
NPI 1508840570
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Thousand Oaks, CA

Q: What is Gregory Fontana's NPI number?

The NPI number for Gregory Fontana is 1508840570. It was assigned to this individual provider in the NPPES registry on December 2, 2005.

Q: What is Gregory Fontana's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Gregory Fontana was last updated on February 9, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since December 02, 2005PECOS EnrolledAccepts Medicare Assignment

215 W JANSS RD, THOUSAND OAKS, CA 91360(805) 852-9100 Get Directions Write a Review

NPPES record last updated: February 9, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Gregory Fontana M.d. NPPES

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

DR. GREGORY FONTANA M.D. (NPI 1508840570) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Thousand Oaks, California, licensed in New York (263949) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1984).

NPPES Registry Identity

NPI1508840570

Entity TypeIndividualMale

Primary Taxonomy208G00000X

Provider Legal NameDR. GREGORY FONTANACredential: M.D.

Location Address215 W JANSS RDThousand Oaks, CA 91360-1847

Mailing Address227 W Janss Rd, Suite 340Thousand Oaks, CA 91360-1848 · (805) 852-9100 · Fax (805) 852-9101

Phone(805) 852-9100

Sole ProprietorNo

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1984

Enumeration DateDecember 2, 2005

Last NPPES UpdateFebruary 9, 2022

✔ NPI 1508840570 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 NY · 263949

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.

215 W JANSS RD, Thousand Oaks, CA 91360

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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

Dr. Gregory Fontana M.d. 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 ID6507905247

PECOS Enrollment IDI20091209000358

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 Gregory Fontana reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Golden State Providers, A Medical Corporation

4.9 mi

Multi-Specialty

865 PATRIOT DR STE 203
Moorpark, CA 93021

Reassigned Medicare billing, California enrollment
44 clinicians in this Medicare group

NPI 1366859449 (805) 370-4684

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

119 services99 patients

Replacement of aortic valve through the skin and femoral artery 33361

This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.

58 services58 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

55 services46 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

32 services32 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

30 services27 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91360 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

$185.36 typical visit price

range $62.32 – $185.36

Typical copayment $46.34 (range $15.58 – $46.34)

Most-billed visit code 99205

Established Patient

$77.11 typical visit price

range $20.68 – $151.85

Typical copayment $19.27 (range $5.17 – $37.96)

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.

LOS ROBLES RADIOLOGIC ASSOCIATES

Radiology (Diagnostic Radiology)