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DR. MICHAEL GERARD LYON M.D.
NPI 1255357968
Internal Medicine - Rheumatology in Livermore, CA

Active since July 14, 2006
4951 ARROYO RD, VAMC 111(LD), LIVERMORE, CA 94550(650) 493-5000(925) 449-6522 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Michael Gerard Lyon M.d. NPPES

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

DR. MICHAEL GERARD LYON M.D. (NPI 1255357968) is an individual rheumatology provider in Livermore, California, licensed in California (G47269) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1255357968
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. MICHAEL GERARD LYONCredential: M.D.
Location Address4951 ARROYO RD, VAMC 111(LD)Livermore, CA 94550-9650
Mailing Address4951 Arroyo Rd, Vamc 111(ld)Livermore, CA 94550-9650 · (650) 493-5000 · Fax (925) 449-6522
Phone(650) 493-5000
Fax(925) 449-6522
Sole ProprietorYes
Enumeration DateJuly 14, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1255357968 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in CA · G47269
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
4951 ARROYO RD, Livermore, CA 94550
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Other Identifiers 2

Medicare UPINVAD000CA
Medicare UPINA01749CA

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.

MRS. INSUK S. DURHAM R.D
Dietitian, Registered
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
CHERYL JOY BOWERS RN, CNS
Clinical Nurse Specialist
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
DR. DEEPALI DHRUVE PHD
Psychologist (Clinical)
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
PALO ALTO VAMC
General Acute Care Hospital
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (702) 341-3020
MR. PAULEY MARCELIN RN
Registered Nurse (Case Management)
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
KENNETH DAVID RANDALL MPT. GCS. ATC
Physical Therapist
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
HOLLAND CHASMA JORDAN LMSW, MSW
Social Worker (Clinical)
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
MRS. LINDA T SHIRAISHI RN, FNP, CWON
Registered Nurse (Wound Care)
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700

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 Lyon's NPI number?

The NPI number for Michael Lyon is 1255357968. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Where is Michael Lyon located?

Michael Lyon practices at 4951 Arroyo Rd Vamc 111(ld), Livermore, CA 94550. The listed phone number is (650) 493-5000.

What is Michael Lyon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

When was this NPI record last updated?

The NPPES record for Michael Lyon was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.