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DR. JOYCE H. MA MD-PHD
NPI 1811302789
General Practice in Redding, CA

Active since June 30, 2014PECOS Enrolled
630 TWIN VIEW BLVD, REDDING, CA 96003(650) 810-6208(530) 605-3703 Get Directions Write a Review

NPPES record last updated: January 11, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Joyce H. Ma Md-phd NPPES

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

DR. JOYCE H. MA MD-PHD (NPI 1811302789) is an individual general practice provider in Redding, California, licensed in California (A167379) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811302789
Entity TypeIndividualFemale
Primary Taxonomy208D00000X
Provider Legal NameDR. JOYCE H. MACredential: MD-PHD
Location Address630 TWIN VIEW BLVDRedding, CA 96003-2010
Mailing Address630 Twin View BlvdRedding, CA 96003-2010 · (650) 810-6208 · Fax (530) 605-3703
Phone(650) 810-6208
Fax(530) 605-3703
Sole ProprietorNo
Enumeration DateJune 30, 2014
Last NPPES UpdateJanuary 11, 2022
NPPES CertifiedJanuary 11, 2022
✔ NPI 1811302789 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in CA · A167379
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
630 TWIN VIEW BLVD, Redding, CA 96003
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Joyce H. Ma Md-phd 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 Reassignment

Medicare enrollment records show Joyce Ma reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Shasta Community Health Center
2.4 mi
Federally Qualified Health Center (FQHC)
980 PLACER ST
Redding, CA 96001
  • Reassigned Medicare billing, California enrollment
  • 144 clinicians in this Medicare group
NPI 1356815542 (530) 246-5930

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Joyce Ma's NPI number?

The NPI number for Joyce Ma is 1811302789. It was assigned to this individual provider in the NPPES registry on June 30, 2014.

Where is Joyce Ma located?

Joyce Ma practices at 630 Twin View Blvd, Redding, CA 96003. The listed phone number is (650) 810-6208.

What is Joyce Ma's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Joyce Ma enrolled in Medicare?

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

Which organization bills Medicare for Joyce Ma's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joyce Ma reassigns Medicare benefits to Shasta Community Health Center (Redding, CA). The 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 Joyce Ma'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 Joyce Ma was last updated on January 11, 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.