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SIENNA DERMATOLOGY, PLLC
NPI 1811410319
Dermatology in Missouri City, TX

Active since July 17, 2017CLIA Certified · 2 labs
7435 HIGHWAY 6 STE B, MISSOURI CITY, TX 77459(832) 342-9700 Get Directions Write a Review

NPPES record last updated: December 10, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 10, 2024, Jan 17, 2018, Jul 17, 2017 (3 updates tracked since 2017).

About Sienna Dermatology, Pllc NPPES

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

SIENNA DERMATOLOGY, PLLC (NPI 1811410319) is a healthcare organization registered as a dermatology in Missouri City, Texas and active in the NPI registry since July 2017. The organization holds 2 active CLIA laboratory certificates, maintains a secondary practice location in Sugar Land, and lists Mary Margaret Moore, Owner, as its authorized official.

NPPES Registry Identity

NPI1811410319
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameSIENNA DERMATOLOGY, PLLC
Location Address7435 HIGHWAY 6 STE BMissouri City, TX 77459-4698
Mailing Address7435 Highway 6 Ste BMissouri City, TX 77459-4698 · (832) 342-9700
Phone(832) 342-9700
Organization SubpartNo
Authorized OfficialMary Margaret MooreOwner · (281) 412-6262
Enumeration DateJuly 17, 2017
Last NPPES UpdateDecember 10, 20243 updates tracked since enumeration
NPPES CertifiedDecember 10, 2024
✔ NPI 1811410319 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
7435 HIGHWAY 6 STE B, Missouri City, TX 77459
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Secondary Practice Location 1

Location 117510 W Grand Pkwy S Ste 385Sugar Land, TX 77479-2649 · Phone (832) 342-9700

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Sienna Dermatology, PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Mary Moore, M.D.
Dermatology
NPI 1134314263
7435 HIGHWAY 6 STE B
Missouri City, TX 77459
(832) 342-9700
✔ PECOS✔ Accepts MedicareSame address
Angel Puryear, M.D.
Dermatology
NPI 1265669881
7435 HIGHWAY 6 STE B
Missouri City, TX 77459
(832) 342-9700
✔ PECOS✔ Accepts MedicareSame address

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 2

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 45D2166460

Sienna Dermatology · Missouri City, TX
Active · expires May 16, 2027
CLIA Number45D2166460
Laboratory TypePhysician Office
Certificate Effective DateMay 17, 2025
Certificate Expiration DateMay 16, 2027
Laboratory DirectorMary M. Moore
Laboratory Phone(832) 342-9700
Laboratory LocationSienna Dermatology7435 Highway 6 Suite B, Missouri City, TX 77459
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 45D2316705

Sienna Dermatology, PLLC · Sugar Land, TX
Active · expires Jan 9, 2027
CLIA Number45D2316705
Laboratory TypePhysician Office
Certificate Effective DateJanuary 10, 2025
Certificate Expiration DateJanuary 9, 2027
Laboratory DirectorMary M. Moore
Laboratory Phone(832) 770-6388
Laboratory LocationSienna Dermatology, PLLC17510 West Grandparkway, Suite 385, Sugar Land, TX 77479
CLIA data matches this NPI record on: Name
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 Sienna Dermatology, PLLC's NPI number?

The NPI number for Sienna Dermatology, PLLC is 1811410319. It was assigned to this organization in the NPPES registry on July 17, 2017.

Where is Sienna Dermatology, PLLC located?

Sienna Dermatology, PLLC is located at 7435 Highway 6 Ste B, Missouri City, TX 77459. The listed phone number is (832) 342-9700.

What is Sienna Dermatology, PLLC's specialty?

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

Is Sienna Dermatology, PLLC enrolled in Medicare?

Yes. Sienna Dermatology, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sienna Dermatology, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Dermatology, reassign their Medicare billing to Sienna Dermatology, 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, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Sienna Dermatology, PLLC hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Sienna Dermatology, PLLC was last updated on December 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months 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.