Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DIEM Q TRAN O.D.
NPI 1740253590
Optometrist in Scotts Valley, CA

Q: What is Diem Tran's NPI number?

The NPI number for Diem Tran is 1740253590. It was assigned to this individual provider in the NPPES registry on February 10, 2006.

Q: What is Diem Tran's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Diem Tran was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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 February 10, 2006PECOS Enrolled

255 MOUNT HERMON RD, SUITE D, SCOTTS VALLEY, CA 95066(831) 438-5526 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Diem Q Tran O.d. NPPES

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

DIEM Q TRAN O.D. (NPI 1740253590) is an individual optometrist in Scotts Valley, California, licensed in California (OPT12924T) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740253590

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameDIEM Q TRANCredential: O.D.

Location Address255 MOUNT HERMON RD, SUITE DScotts Valley, CA 95066-4080

Mailing Address1502 Foxworthy AveSan Jose, CA 95118-1030 · (650) 814-2989 · Fax (206) 338-0411

Phone(831) 438-5526

Sole ProprietorNo

Enumeration DateFebruary 10, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1740253590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in CA · OPT12924T

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

255 MOUNT HERMON RD, Scotts Valley, CA 95066

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diem Q Tran O.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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95066 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

$141.77 typical visit price

range $62.97 – $186.69

Typical copayment $35.44 (range $15.74 – $46.67)

Most-billed visit code 99204

Established Patient

$77.84 typical visit price

range $21.02 – $153.16

Typical copayment $19.46 (range $5.25 – $38.29)

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.

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 Diem Tran's NPI number?

The NPI number for Diem Tran is 1740253590. It was assigned to this individual provider in the NPPES registry on February 10, 2006.

Where is Diem Tran located?

Diem Tran practices at 255 Mount Hermon Rd Suite D, Scotts Valley, CA 95066. The listed phone number is (831) 438-5526.

What is Diem Tran's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Diem Tran enrolled in Medicare?

Yes. Diem Tran is registered in the Medicare PECOS enrollment system.

What insurance does Diem Tran accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Diem Tran as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Diem Tran was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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.