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

MS. HEATHER JIYUAN MA MD
NPI 1770169781
Psychiatry & Neurology - Neurology in Santa Clara, CA

Active since March 20, 2021PECOS Enrolled
2734 EL CAMINO REAL, SANTA CLARA, CA 95051(650) 934-7300 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Sep 28, 2026, Mar 20, 2021 (2 updates tracked since 2021).

About Ms. Heather Jiyuan Ma Md NPPES

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

MS. HEATHER JIYUAN MA MD (NPI 1770169781) is an individual neurology provider in Santa Clara, California, licensed in California (181841) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Palo Alto.

NPPES Registry Identity

NPI1770169781
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameMS. HEATHER JIYUAN MACredential: MD
Location Address2734 EL CAMINO REALSanta Clara, CA 95051-3007
Mailing AddressPo Box 276950Sacramento, CA 95827-6950
Sole ProprietorNo
Enumeration DateMarch 20, 2021
Last NPPES UpdateSeptember 28, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2026
✔ NPI 1770169781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in CA · 181841
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
Also ListedPsychiatry & Neurology · EpilepsyTaxonomy 2084E0001X · License 181841 (CA)
2734 EL CAMINO REAL, Santa Clara, CA 95051

Secondary Practice Location 1

Location 1453 Quarry RdPalo Alto, CA 94304-1419 · Phone (650) 723-6469

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Heather Jiyuan Ma 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 95051 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
Most-billed visit code 99214
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.

Internal Medicine
2734 EL CAMINO REAL
SANTA CLARA, CA 95051
Internal Medicine
2734 EL CAMINO REAL
SANTA CLARA, CA 95051
Nurse Practitioner (Family)
2734 EL CAMINO REAL
SANTA CLARA, CA 95051
Family Medicine
2734 EL CAMINO REAL
SANTA CLARA, CA 95051
Family Medicine
2734 EL CAMINO REAL
SANTA CLARA, CA 95051
Family Medicine
2734 EL CAMINO REAL
SANTA CLARA, CA 95051
Internal Medicine
2734 EL CAMINO REAL
SANTA CLARA, CA 95051
Internal Medicine
2734 EL CAMINO REAL
SANTA CLARA, CA 95051

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 Heather Ma's NPI number?

The NPI number for Heather Ma is 1770169781. It was assigned to this individual provider in the NPPES registry on March 20, 2021.

Where is Heather Ma located?

Heather Ma practices at 2734 El Camino Real, Santa Clara, CA 95051. The listed phone number is (650) 934-7300.

What is Heather Ma's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Heather Ma enrolled in Medicare?

Yes. Heather Ma is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Heather Ma was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.