1. Home
  2. Directory
  3. California
  4. Walnut Creek
  5. Optometrist
  6. NPI Profile

TAMMY C. HONG O.D.
NPI 1790753960
Optometrist in Walnut Creek, CA

Active since March 14, 2006PECOS Enrolled
320 LENNON LN, WALNUT CREEK, CA 94598(925) 906-2010 Get Directions Write a Review

NPPES record last updated: January 20, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Tammy C. Hong O.d. NPPES

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

TAMMY C. HONG O.D. (NPI 1790753960) is an individual optometrist in Walnut Creek, California, licensed in California (12221T) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790753960
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameTAMMY C. HONGCredential: O.D.
Location Address320 LENNON LNWalnut Creek, CA 94598-2419
Mailing Address320 Lennon LnWalnut Creek, CA 94598-2419
Phone(925) 906-2010
Sole ProprietorYes
Enumeration DateMarch 14, 2006
Last NPPES UpdateJanuary 20, 2022
NPPES CertifiedJanuary 20, 2022
✔ NPI 1790753960 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 · 12221T
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.
320 LENNON LN, Walnut Creek, CA 94598
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tammy C. Hong 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 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 20

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

LINDA MARIE HECKENLIVELY M.S., CCC-SLP
Speech-Language Pathologist
320 LENNON LN
WALNUT CREEK, CA 94598
Contra Costa County (925) 906-2268
DR. NEGAR DOLATSHAHI PIROOZ OD
Optometrist
320 LENNON LN
WALNUT CREEK, CA 94598
Contra Costa County (925) 906-2156
KARIN HESS BRIGHT PT
Physical Therapist (Hand)
320 LENNON LN
WALNUT CREEK, CA 94598
Contra Costa County (925) 906-2055
STEPHANIE M. PO MD
Ophthalmology
320 LENNON LN
WALNUT CREEK, CA 94598
Contra Costa County (925) 906-2000
MR. DAVID NATHANSON
Internal Medicine
320 LENNON LN
WALNUT CREEK, CA 94598
Contra Costa County (925) 906-2000
DR. KENNETH MUN LEE O.D.
Optometrist
320 LENNON LN
WALNUT CREEK, CA 94598
Contra Costa County (925) 906-2171
JUDY KWAK
Pharmacist
320 LENNON LN
WALNUT CREEK, CA 94598
Contra Costa County (925) 906-2503
DR. TIMMOTHY O MERRIGAN M.D.
Family Medicine
320 LENNON LN
WALNUT CREEK, CA 94598
Contra Costa County (924) 906-2326

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 Tammy Hong's NPI number?

The NPI number for Tammy Hong is 1790753960. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is Tammy Hong located?

Tammy Hong practices at 320 Lennon Ln, Walnut Creek, CA 94598. The listed phone number is (925) 906-2010.

What is Tammy Hong's specialty?

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

Is Tammy Hong enrolled in Medicare?

Yes. Tammy Hong is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Tammy Hong was last updated on January 20, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.