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MICHAEL CHRISTOPHER GYNN MD
NPI 1366462491
Surgery in Pleasanton, CA

Active since July 20, 2006PECOS Enrolled
5555 W LAS POSITAS BLVD, PLEASANTON, CA 94588(925) 416-3440 Get Directions Write a Review

NPPES record last updated: March 12, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Michael Christopher Gynn Md NPPES

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

MICHAEL CHRISTOPHER GYNN MD (NPI 1366462491) is an individual surgery provider in Pleasanton, California, licensed in California (A79766) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in French Camp.

NPPES Registry Identity

NPI1366462491
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameMICHAEL CHRISTOPHER GYNNCredential: MD
Location Address5555 W LAS POSITAS BLVDPleasanton, CA 94588-4000
Mailing Address5555 W Las Positas BlvdPleasanton, CA 94588-4000 · (925) 416-3440
Phone(925) 416-3440
Sole ProprietorNo
Enumeration DateJuly 20, 2006
Last NPPES UpdateMarch 12, 2025
NPPES CertifiedMarch 12, 2025
✔ NPI 1366462491 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A79766
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
5555 W LAS POSITAS BLVD, Pleasanton, CA 94588
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Secondary Practice Location 1

Location 1500 W. Hospital Rd.French Camp, CA 95231 · Phone (209) 468-6937 · Fax (209) 468-7042

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Christopher Gynn 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94588 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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.

DESMOND CHEE
Physician Assistant
5555 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Alameda County (925) 416-6585
CYNTHIA SUE PENN-DUECKER MD
Emergency Medicine
5555 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Alameda County (209) 342-2300
SIMON Y LEE M.D.
Pediatrics
5555 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Alameda County (925) 416-3672
RYAN SCOTT CATES PA-C
Physician Assistant
5555 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Alameda County (813) 732-7842
DR. TONY G SHIU MD
Emergency Medicine
5555 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Alameda County (209) 342-2300
CHARISMA KAUSHIK MD
Internal Medicine (Critical Care Medicine)
5555 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Alameda County (925) 416-3418
JODI NAKAWATASE PT
Physical Therapist
5555 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Alameda County (925) 416-3840
EDWARD Y KAN MD
Emergency Medicine
5555 W LAS POSITAS BLVD
PLEASANTON, CA 94588
Alameda County (209) 342-2300

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 Michael Gynn's NPI number?

The NPI number for Michael Gynn is 1366462491. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is Michael Gynn located?

Michael Gynn practices at 5555 W Las Positas Blvd, Pleasanton, CA 94588. The listed phone number is (925) 416-3440.

What is Michael Gynn's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Michael Gynn enrolled in Medicare?

Yes. Michael Gynn is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Michael Gynn was last updated on March 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.