Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WESTLAKE DERMATOLOGY, PA
NPI 1891029476
Dermatology in Lakeway, TX

Active since September 29, 2009CLIA 45D2129193 · Waiver
401 RR 620 N, SUITE 200, LAKEWAY, TX 78734(512) 610-0549(512) 306-0222 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Westlake Dermatology, Pa NPPES

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

WESTLAKE DERMATOLOGY, PA (NPI 1891029476) is a healthcare organization registered as a dermatology in Lakeway, Texas and active in the NPI registry since September 2009. The organization holds a CLIA Waiver certificate valid through November 25, 2028 and lists Gregory Nikolaidis, Owner/president, as its authorized official.

NPPES Registry Identity

NPI1891029476
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameWESTLAKE DERMATOLOGY, PA
Location Address401 RR 620 N, SUITE 200Lakeway, TX 78734-3910
Mailing Address8825 Bee Caves Rd Ste 111Austin, TX 78746-4720 · (512) 328-3376
Fax(512) 306-0222
Organization SubpartNo
Authorized OfficialGregory NikolaidisOwner/president · (512) 328-3376
Enumeration DateSeptember 29, 2009
Last NPPES UpdateSeptember 23, 2026
NPPES CertifiedSeptember 23, 2026
✔ NPI 1891029476 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
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.
Also ListedPhysician AssistantTaxonomy 363A00000X
401 RR 620 N, Lakeway, TX 78734

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Westlake Dermatology, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

54

Medicare enrollment records show 54 clinicians reassign Medicare billing to Westlake Dermatology, PA, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 19 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 6

Dermatology44
Plastic and Reconstructive Surgery4
Nurse Practitioner2
Pathology2
Micrographic Dermatologic Surgery (MDS)1
Otolaryngology1

Nearest to this location (20)

See all 54
Dermatology
NPI 1760650428
401 RANCH ROAD 620 S STE 200
Lakeway, TX 78734
(512) 610-0549
✔ PECOS✔ Accepts MedicareSame address
Dermatology
NPI 1023690021
401 RANCH ROAD 620 S STE 200
Lakeway, TX 78734
(512) 610-0549
✔ PECOS✔ Accepts MedicareSame address
Dermatology
NPI 1710373105
401 RANCH ROAD 620 S STE 200
Lakeway, TX 78734
(512) 610-0549
✔ PECOS✔ Accepts Medicare0.6 mi
Pathology
NPI 1841797446
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1982716783
8825 BEE CAVE RD SUITE 200
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Plastic and Reconstructive Surgery
NPI 1235336488
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS6.0 mi
Dermatology
NPI 1033484415
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1326200569
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS6.0 mi
Dermatology
NPI 1982863510
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1053630582
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1285993535
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1326011859
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1033478763
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1144757592
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Pathology
NPI 1386987840
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1689022832
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.0 mi
Nurse Practitioner
NPI 1205799962
8825 BEE CAVES RD
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.2 mi
Dermatology
NPI 1891324448
8825 BEE CAVES RD STE 100
Austin, TX 78746
(512) 328-3376
✔ PECOS✔ Accepts Medicare6.2 mi
Dermatology
NPI 1225203433
7415 SOUTHWEST PKWY STE 100
Austin, TX 78735
(512) 617-3376
✔ PECOS✔ Accepts Medicare8.8 mi
Dermatology
NPI 1265797427
200 S LAKELINE BLVD STE A
Cedar Park, TX 78613
(512) 617-3000
✔ PECOS✔ Accepts Medicare12 mi
See all 54 clinicians

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 45D2129193

Westlake Dermatology & Cosmetic Surgery Lakeway · Lakeway, TX
Active · expires Nov 25, 2028
CLIA Number45D2129193
Laboratory TypePhysician Office
Certificate Effective DateNovember 26, 2026
Certificate Expiration DateNovember 25, 2028
Laboratory DirectorGregory A. Nikolaidis
Laboratory Phone(512) 610-0549
Laboratory LocationWestlake Dermatology & Cosmetic Surgery Lakeway401 Ranch Road 620 South Ste 200, Lakeway, TX 78734
CLIA data matches this NPI record on: 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 Westlake Dermatology, PA's NPI number?

The NPI number for Westlake Dermatology, PA is 1891029476. It was assigned to this organization in the NPPES registry on September 29, 2009.

Where is Westlake Dermatology, PA located?

Westlake Dermatology, PA is located at 401 Rr 620 N Suite 200, Lakeway, TX 78734. The listed phone number is (512) 610-0549.

What is Westlake Dermatology, PA's specialty?

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

Is Westlake Dermatology, PA enrolled in Medicare?

Yes. Westlake Dermatology, PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Westlake Dermatology, PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 54 clinicians in 6 Medicare specialties reassign their Medicare billing to Westlake Dermatology, PA. 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. The largest specialties are Dermatology (44), Plastic and Reconstructive Surgery (4) and Nurse Practitioner (2). Of these, 1 practice at this address and 19 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Westlake Dermatology, PA hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D2129193) is associated with this NPI, valid through November 25, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Westlake Dermatology, PA accept?

Health plans from WellPoint list Westlake Dermatology, PA as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Westlake Dermatology, PA was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 days 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.