CRYSTAL TIFFANY WILLIAMS
NPI 1699158436
Counselor - Mental Health in Columbia, SC
About Crystal Tiffany Williams NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CRYSTAL TIFFANY WILLIAMS (NPI 1699158436) is an individual mental health provider in Columbia, South Carolina and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Crystal Tiffany Williams is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Crystal Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Miami, FL 33130
- Reassigned Medicare billing, District of Columbia and South Carolina enrollments
- 1,424 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.
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 Crystal Williams's NPI number?
The NPI number for Crystal Williams is 1699158436. It was assigned to this individual provider in the NPPES registry on June 29, 2015.
Where is Crystal Williams located?
Crystal Williams practices at 261 Business Park Blvd Apt 916, Columbia, SC 29203. The listed phone number is (803) 200-4404.
What is Crystal Williams's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Crystal Williams enrolled in Medicare?
Yes. Crystal Williams is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Crystal Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Crystal Williams reassigns Medicare benefits to Grow Healthcare Group PA (Miami, FL). 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 Crystal Williams'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 Crystal Williams was last updated on June 29, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Crystal Tiffany Williams · NPI 1699158436
Mental Health provider in Columbia, South Carolina. Individual provider, active in the CMS NPPES registry since June 29, 2015.
## Identity
- **NPI:** 1699158436 (Entity type: Individual)
- **Enumerated:** June 29, 2015
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **Sole proprietor:** No
## Practice location
- **Address:** 261 BUSINESS PARK BLVD, APT 916, Columbia, SC 29203-8904
- **Phone:** (803) 200-4404
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Grow Healthcare Group PA (NPI 1245845932, Miami, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 29, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1699158436) · Data from the CMS NPPES public registry.