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ESSENTIAL DERMATOLOGY NWH, PLLC
NPI 1154982833
Dermatology in Natick, MA

Active since June 24, 2019CLIA 22D2264364 · Certificate of Compliance
220 N MAIN ST STE 201, NATICK, MA 01760(508) 545-9713 Get Directions Write a Review

NPPES record last updated: January 12, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 12, 2026, Jan 1, 2026, Dec 22, 2025 and 2 more (5 updates tracked since 2019).

About Essential Dermatology Nwh, Pllc NPPES

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

ESSENTIAL DERMATOLOGY NWH, PLLC (NPI 1154982833), doing business as Essential Dermatology, is a healthcare organization registered as a dermatology in Natick, Massachusetts and active in the NPI registry since June 2019. The organization holds a CLIA Certificate of Compliance certificate valid through April 22, 2028, maintains a secondary practice location in Needham, and lists Michael Scott Krathen, Managing Member, as its authorized official.

NPPES Registry Identity

NPI1154982833
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameESSENTIAL DERMATOLOGY NWH, PLLC
Location Address220 N MAIN ST STE 201Natick, MA 01760-1100
Mailing Address220 N Main St Ste 201Natick, MA 01760-1100
Phone(508) 545-9713
Organization SubpartYesParent: Essential Dermatology, Pllc
Authorized OfficialMichael Scott KrathenManaging Member · (508) 827-2615
Enumeration DateJune 24, 2019
Last NPPES UpdateJanuary 12, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 12, 2026
✔ NPI 1154982833 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.
220 N MAIN ST STE 201, Natick, MA 01760
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Other Names 1

Doing Business AsEssential Dermatology

Secondary Practice Location 1

Location 1145 Rosemary St Ste CNeedham, MA 02494-3259 · Phone (508) 484-8292 · Fax (508) 827-2616

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)

Essential Dermatology Nwh, 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 Essential Dermatology Nwh, PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Michael Krathen, MD
Dermatology
NPI 1932376050
220 N MAIN ST STE 201
Natick, MA 01760
(508) 545-9713
✔ PECOS✔ Accepts MedicareSame address
Sameer Gupta, M.D.
Dermatology
NPI 1851741268
243 CHARLES ST
Boston, MA 02114
(617) 573-3789
✔ PECOS✔ Accepts Medicare16 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 Compliance 22D2264364

Essential Dermatology · Natick, MA
Active · expires Apr 22, 2028
CLIA Number22D2264364
Laboratory TypePhysician Office
Certificate Effective DateApril 23, 2026
Certificate Expiration DateApril 22, 2028
Laboratory DirectorDr. Sameer Gupta
Laboratory Phone(508) 827-2615
Laboratory LocationEssential Dermatology220 North Main Street, Suite 201, Natick, MA 01760
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Essential Dermatology Nwh, PLLC's NPI number?

The NPI number for Essential Dermatology Nwh, PLLC is 1154982833. It was assigned to this organization in the NPPES registry on June 24, 2019. The provider is doing business as Essential Dermatology.

Where is Essential Dermatology Nwh, PLLC located?

Essential Dermatology Nwh, PLLC is located at 220 N Main St Ste 201, Natick, MA 01760. The listed phone number is (508) 545-9713.

What is Essential Dermatology Nwh, PLLC's specialty?

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

Is Essential Dermatology Nwh, PLLC enrolled in Medicare?

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

How many clinicians bill Medicare through Essential Dermatology Nwh, PLLC?

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

Does Essential Dermatology Nwh, PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 22D2264364) is associated with this NPI, valid through April 22, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Essential Dermatology Nwh, PLLC was last updated on January 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.