DR. MICHAEL MA MD
NPI 1891945804
Internal Medicine in San Gabriel, CA

Q: What is Michael Ma's NPI number?

The NPI number for Michael Ma is 1891945804. It was assigned to this individual provider in the NPPES registry on September 26, 2008.

Q: What is Michael Ma's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Michael Ma was last updated on November 30, 2021. 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.

Active since September 26, 2008PECOS EnrolledAccepts Medicare Assignment

933 WALNUT ST, SAN GABRIEL, CA 91776(626) 372-5922 Get Directions Write a Review

NPPES record last updated: November 30, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Michael Ma Md NPPES

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

DR. MICHAEL MA MD (NPI 1891945804) is an individual internal medicine provider in San Gabriel, California, licensed in California (A107326) and active in the NPI registry since September 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1891945804

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. MICHAEL MACredential: MD

Location Address933 WALNUT STSan Gabriel, CA 91776-2836

Mailing Address933 Walnut StSan Gabriel, CA 91776-2836 · (626) 372-5922

Phone(626) 372-5922

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateSeptember 26, 2008

Last NPPES UpdateNovember 30, 2021

✔ NPI 1891945804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A107326

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedInternal Medicine · Hospice and Palliative MedicineTaxonomy 207RH0002X · License A107326 (CA)

933 WALNUT ST, San Gabriel, CA 91776

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Michael Ma Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880729847

PECOS Enrollment IDI20100316000229

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 91776 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

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 Ma's NPI number?

The NPI number for Michael Ma is 1891945804. It was assigned to this individual provider in the NPPES registry on September 26, 2008.

Where is Michael Ma located?

Michael Ma practices at 933 Walnut St, San Gabriel, CA 91776. The listed phone number is (626) 372-5922.

What is Michael Ma's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michael Ma enrolled in Medicare?

Yes. Michael Ma is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Michael Ma was last updated on November 30, 2021. 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.