DAVID ROBERT DEMARTINI M.D.
NPI 1437134855
Ophthalmology in Walnut Creek, CA

Q: What is David Demartini's NPI number?

The NPI number for David Demartini is 1437134855. It was assigned to this individual provider in the NPPES registry on December 8, 2005.

Q: What is David Demartini's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for David Demartini was last updated on September 5, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 08, 2005PECOS Enrolled

122 LA CASA VIA, STE 222, WALNUT CREEK, CA 94598(925) 947-0888(925) 947-4385 Get Directions Write a Review

NPPES record last updated: September 5, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About David Robert Demartini M.d. NPPES

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

DAVID ROBERT DEMARTINI M.D. (NPI 1437134855) is an individual ophthalmology provider in Walnut Creek, California, licensed in California (G390000) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1437134855

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDAVID ROBERT DEMARTINICredential: M.D.

Location Address122 LA CASA VIA, STE 222Walnut Creek, CA 94598-3052

Mailing Address122 La Casa Via, Ste 222Walnut Creek, CA 94598-3052 · (925) 947-0888 · Fax (925) 947-4385

Phone(925) 947-0888

Fax(925) 947-4385

Sole ProprietorNo

Enumeration DateDecember 8, 2005

Last NPPES UpdateSeptember 5, 2013

✔ NPI 1437134855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · G390000

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

122 LA CASA VIA, Walnut Creek, CA 94598

Open in Google Maps ↗

Other Identifiers 5

Medicare ID-Type Unspecified00G390000CA

Medicaid00G390000CA

Medicare ID-Type Unspecified00G390001CA

Medicare UPINA47665

Medicaid00G390001CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

David Robert Demartini 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.

Medicare Billing Reassignments

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

Northern California Cornea Associates Inc

0.1 mi

Ophthalmology

122 LA CASA VIA, STE 222
Walnut Creek, CA 94598

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

NPI 1992889240 (925) 947-0888

Central Valley Eye Medical Group Inc.

41 mi

Ophthalmology

36 WEST YOKUTS AVE, SUITE 1
Stockton, CA 95207

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

NPI 1609975366 (209) 952-3700

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 94598 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

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 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. ALLEN ZACHARY VERNE M.D.

Ophthalmology

122 LA CASA VIA, SUITE #223
WALNUT CREEK, CA 94598

Contra Costa County (925) 943-6800

PACIFIC RETINA

Ophthalmology

122 LA CASA VIA, #223
WALNUT CREEK, CA 94598

Contra Costa County (925) 943-6800

LINA CHAN OD

Optometrist

122 LA CASA VIA, #222
WALNUT CREEK, CA 94598

Contra Costa County (925) 947-0888

NORTHERN CALIFORNIA CORNEA ASSOCIATES INC

Ophthalmology

122 LA CASA VIA, STE 222
WALNUT CREEK, CA 94598

Contra Costa County (925) 947-0888

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 David Demartini's NPI number?

The NPI number for David Demartini is 1437134855. It was assigned to this individual provider in the NPPES registry on December 8, 2005.

Where is David Demartini located?

David Demartini practices at 122 La Casa Via Ste 222, Walnut Creek, CA 94598. The listed phone number is (925) 947-0888.

What is David Demartini's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is David Demartini enrolled in Medicare?

Yes. David Demartini is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for David Demartini's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Demartini reassigns Medicare benefits to 2 organizations: Northern California Cornea Associates Inc (Walnut Creek, CA) and Central Valley Eye Medical Group Inc. (Stockton, CA). 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 David Demartini'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 David Demartini was last updated on September 5, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.