ELAINE JOYCE TANG
NPI 1194354316
Hospitalist in Concord, CA
About Elaine Joyce Tang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELAINE JOYCE TANG (NPI 1194354316) is an individual hospitalist provider in Concord, California, licensed in California (A189311) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Francisco, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Elaine Joyce Tang 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.
Medicare Billing Reassignments
2Medicare enrollment records show Elaine Tang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94520 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
CONCORD, CA 94520
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 Elaine Tang's NPI number?
The NPI number for Elaine Tang is 1194354316. It was assigned to this individual provider in the NPPES registry on April 8, 2020.
Where is Elaine Tang located?
Elaine Tang practices at 2700 Grant St Ste 200, Concord, CA 94520. The listed phone number is (925) 947-3312.
What is Elaine Tang's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Elaine Tang enrolled in Medicare?
Yes. Elaine Tang 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.
Which organizations bill Medicare for Elaine Tang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elaine Tang reassigns Medicare benefits to 2 organizations: John Muir Physician Network (Walnut Creek, CA) and John Muir Trauma Physicians Billing Service (Walnut Creek, CA). Each 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 Elaine Tang'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 Elaine Tang was last updated on October 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Elaine Joyce Tang · NPI 1194354316
Hospitalist physician in Concord, California. Individual provider, active in the CMS NPPES registry since April 8, 2020.
## Identity
- **NPI:** 1194354316 (Entity type: Individual)
- **Enumerated:** April 8, 2020
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A189311 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2700 GRANT ST STE 200, Concord, CA 94520-2270
- **Phone:** (925) 947-3312
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): John Muir Physician Network (NPI 1841407665, Walnut Creek, CA); John Muir Trauma Physicians Billing Service (NPI 1962551861, Walnut Creek, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** October 23, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1194354316) · Data from the CMS NPPES public registry.