1. Home
  2. Directory
  3. California
  4. Ventura
  5. Radiology
  6. NPI Profile

DR. JOHN MCMAHAN M.D.
NPI 1104980317
Radiology - Diagnostic Radiology in Ventura, CA

Active since December 21, 2006PECOS Enrolled
87.65/100
CMS Quality Rating
3291 LOMA VISTA RD, VENTURA, CA 93003(805) 652-6556 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. John Mcmahan M.d. NPPES

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

DR. JOHN MCMAHAN M.D. (NPI 1104980317) is an individual diagnostic radiology provider in Ventura, California, licensed in California (G48965) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104980317
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. JOHN MCMAHANCredential: M.D.
Location Address3291 LOMA VISTA RDVentura, CA 93003-3099
Mailing Address3291 Loma Vista RdVentura, CA 93003-3099 · (805) 652-6556
Phone(805) 652-6556
Sole ProprietorNo
Enumeration DateDecember 21, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1104980317 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in CA · G48965
Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

3291 LOMA VISTA RD, Ventura, CA 93003
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINE82974CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John Mcmahan M.d. 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.

Areas of Expertise CMS Part B claims

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.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
38 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93003 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
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.65/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75
Improvement Activities40

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.

FRANCISCO ABREU BRACHO M.D.
Pediatrics (Pediatric Hematology-Oncology)
3291 LOMA VISTA RD, SUITE 301 BLDG 340
VENTURA, CA 93003
Ventura County (805) 652-6120
DR. TED M MANDRYK MEDICAL DOCTOR
Emergency Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6165
VLADIMIR LEVINE M.D.
Pediatrics (Neonatal-Perinatal Medicine)
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6084
DR. SIAMAK SAFAR M.D.
Pediatrics (Neonatal-Perinatal Medicine)
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6084
DR. REED M. HORWITZ M.D.
Radiology (Diagnostic Radiology)
3291 LOMA VISTA RD, DEPARTMENT OF RADIOLOGY VCMC
VENTURA, CA 93003
Ventura County (805) 652-6080
THOMAS J DUNLOP M.D.
Family Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6100
BRYAN CHUNG-YUN WONG M.D.
Family Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6075
DR. MATTHEW CARR M.D.
Radiology (Diagnostic Radiology)
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6556

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 John Mcmahan's NPI number?

The NPI number for John Mcmahan is 1104980317. It was assigned to this individual provider in the NPPES registry on December 21, 2006.

Where is John Mcmahan located?

John Mcmahan practices at 3291 Loma Vista Rd, Ventura, CA 93003. The listed phone number is (805) 652-6556.

What is John Mcmahan's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is John Mcmahan enrolled in Medicare?

Yes. John Mcmahan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Mcmahan was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.