VIVIAN W BUCAY MD PLLC
NPI 1285884759
Dermatology in San Antonio, TX

Active since September 22, 2008CLIA 45D2174815 · Waiver
326 W CRAIG PL, SAN ANTONIO, TX 78212(210) 692-3000(210) 692-3056 Get Directions Write a Review

NPPES record last updated: August 23, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Vivian W Bucay Md Pllc NPPES

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

VIVIAN W BUCAY MD PLLC (NPI 1285884759) is a healthcare organization registered as a dermatology in San Antonio, Texas and active in the NPI registry since September 2008. The organization holds a CLIA Waiver certificate valid through November 7, 2027 and lists Kimberly Dawn Freehauf, Cfo, as its authorized official.

NPPES Registry Identity

NPI1285884759
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameVIVIAN W BUCAY MD PLLC
Location Address326 W CRAIG PLSan Antonio, TX 78212-3307
Mailing Address326 W Craig PlSan Antonio, TX 78212-3307 · (210) 692-3000 · Fax (210) 692-3056
Fax(210) 692-3056
Organization SubpartNo
Authorized OfficialKimberly Dawn FreehaufCfo · (830) 931-5582
Enumeration DateSeptember 22, 2008
Last NPPES UpdateAugust 23, 2023
NPPES CertifiedAugust 23, 2023
✔ NPI 1285884759 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in TX · H3955
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
326 W CRAIG PL, San Antonio, TX 78212

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Vivian W Bucay Md Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by January 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateTexasEnrollment IDO20090319000215Non-DME Part B · Clinic/Group PracticeDue dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Vivian W Bucay MD PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (4)

Dermatology
NPI 1821079930
326 W CRAIG PL
San Antonio, TX 78212
(210) 692-3000
✔ PECOS✔ Accepts MedicareSame address
Dermatology
NPI 1750843900
14855 BLANCO RD STE 214
San Antonio, TX 78216
(210) 493-1568
✔ PECOS✔ Accepts Medicare8.9 mi
Dermatology
NPI 1316235328
18707 HARDY OAK BLVD STE 101
San Antonio, TX 78258
(187) 440-7846
✔ PECOS✔ Accepts Medicare11 mi
Dermatology
NPI 1003824335
120 OLD SAN ANTONIO RD
Boerne, TX 78006
(830) 331-4150
✔ PECOS✔ Accepts Medicare26 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 45D2174815

Vivian W Bucay MD PLLC · San Antonio, TX
Active · expires Nov 7, 2027
CLIA Number45D2174815
Laboratory TypePhysician Office
Certificate Effective DateNovember 8, 2025
Certificate Expiration DateNovember 7, 2027
Laboratory DirectorVivian Bucay
Laboratory Phone(210) 692-3000
Laboratory LocationVivian W Bucay MD PLLC326 W Craig Place, San Antonio, TX 78212
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 W Bucay MD PLLC's NPI number?

The NPI number for Vivian W Bucay MD PLLC is 1285884759. It was assigned to this organization in the NPPES registry on September 22, 2008.

Where is Vivian W Bucay MD PLLC located?

Vivian W Bucay MD PLLC is located at 326 W Craig Pl, San Antonio, TX 78212. The listed phone number is (210) 692-3000.

What is Vivian W Bucay MD PLLC's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Vivian W Bucay MD PLLC enrolled in Medicare?

Yes. Vivian W Bucay MD PLLC is registered in the Medicare PECOS enrollment system.

When is Vivian W Bucay MD PLLC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Vivian W Bucay MD PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Dermatology, reassign their Medicare billing to Vivian W Bucay MD PLLC. A 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 the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Vivian W Bucay MD PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D2174815) is associated with this NPI, valid through November 7, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Vivian W Bucay MD PLLC was last updated on August 23, 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.