MRS. VIVIAN V TAN NP-C
NPI 1649787011
Nurse Practitioner - Family in Elkridge, MD
About Mrs. Vivian V Tan Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. VIVIAN V TAN NP-C (NPI 1649787011) is an individual family provider in Elkridge, Maryland, licensed in Maryland (R164835) and active in the NPI registry since January 2018. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
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
Mrs. Vivian V Tan Np-c 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
4Medicare enrollment records show Vivian Tan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Glen Burnie, MD 21060
- Reassigned Medicare billing, Maryland and District of Columbia enrollments
- Also billed through NPI 1285500983 (District of Columbia)
- 101 clinicians in this Medicare group
Baltimore, MD 21212
- Reassigned Medicare billing, Maryland enrollment
- 2 clinicians in this Medicare group
Towson, MD 21204
- Reassigned Medicare billing, Maryland enrollment
- 2 clinicians in this Medicare group
Annapolis, MD 21401
- Reassigned Medicare billing, Maryland enrollment
- 6 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 21075 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.
ELKRIDGE, MD 21075
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 Vivian Tan's NPI number?
The NPI number for Vivian Tan is 1649787011. It was assigned to this individual provider in the NPPES registry on January 5, 2018. The provider is also known as Miss Vivian C Valdez Rn.
Where is Vivian Tan located?
Vivian Tan practices at 6480 Old Waterloo Rd, Elkridge, MD 21075. The listed phone number is (410) 799-0291.
What is Vivian Tan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Vivian Tan enrolled in Medicare?
Yes. Vivian Tan 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 Vivian Tan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Vivian Tan reassigns Medicare benefits to 4 organizations: Synergy Medical Group (Glen Burnie, MD), Angel Hands Healthcare Services, LLC (Baltimore, MD), Regenwell Wound Specialty Group - Central MD, LLC (Towson, MD) and Landmark Medical Of Tennessee PC (Annapolis, MD). 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 Vivian Tan'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 Vivian Tan was last updated on April 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mrs. Vivian V Tan, NP-C · NPI 1649787011
Family physician in Elkridge, Maryland. Individual provider, active in the CMS NPPES registry since January 5, 2018.
## Identity
- **NPI:** 1649787011 (Entity type: Individual)
- **Enumerated:** January 5, 2018
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** R164835 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 6480 OLD WATERLOO RD, Elkridge, MD 21075
- **Phone:** (410) 799-0291
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Synergy Medical Group (NPI 1568349694, Glen Burnie, MD); Angel Hands Healthcare Services, LLC (NPI 1902318124, Baltimore, MD); Regenwell Wound Specialty Group - Central MD, LLC (NPI 1194540484, Towson, MD); Landmark Medical Of Tennessee PC (NPI 1922722172, Annapolis, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** April 14, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1649787011) · Data from the CMS NPPES public registry.