TIANA MEAGAN DALTON GUILLAUME
NPI 1902339203
Obstetrics & Gynecology in Loma Linda, CA
About Tiana Meagan Dalton Guillaume NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIANA MEAGAN DALTON GUILLAUME (NPI 1902339203) is an individual obstetrics & gynecology provider in Loma Linda, California, licensed in California (A157210) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Tiana Meagan Dalton Guillaume is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Tiana Guillaume reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- 5,228 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92354 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.
LOMA LINDA, CA 92354
LOMA LINDA, CA 92354
LOMA LINDA, CA 92354
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 Tiana Guillaume's NPI number?
The NPI number for Tiana Guillaume is 1902339203. It was assigned to this individual provider in the NPPES registry on April 4, 2017. The provider is also known as Tiana Meagan Dalton.
Where is Tiana Guillaume located?
Tiana Guillaume practices at 11234 Anderson St Loma Linda University Health - Obstetrics & Gynecology, Loma Linda, CA 92354. The listed phone number is (909) 651-5510.
What is Tiana Guillaume's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Tiana Guillaume enrolled in Medicare?
Yes. Tiana Guillaume is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Tiana Guillaume's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tiana Guillaume reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, 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 Tiana Guillaume'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 Tiana Guillaume was last updated on March 13, 2024. 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.
# Tiana Meagan Dalton Guillaume · NPI 1902339203
Obstetrics & Gynecology physician in Loma Linda, California. Individual provider, active in the CMS NPPES registry since April 4, 2017.
## Identity
- **NPI:** 1902339203 (Entity type: Individual)
- **Enumerated:** April 4, 2017
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A157210 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 11234 ANDERSON ST, LOMA LINDA UNIVERSITY HEALTH - OBSTETRICS & GYNECOLOGY, Loma Linda, CA 92354-2804
- **Phone:** (909) 651-5510
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1689606196, Fontana, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 13, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1902339203) · Data from the CMS NPPES public registry.