ON SITE DERMATOLOGY OF PENNSYLVANIA PLLC
NPI 1114369873
Dermatology in Lower Gwynedd, PA

Active since July 23, 2013
728 NORRISTOWN RD, LOWER GWYNEDD, PA 19002(877) 345-5300(561) 989-3665 Get Directions Write a Review

NPPES record last updated: April 23, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 18, 2019, Jan 10, 2019 (2 updates tracked since 2019).

About On Site Dermatology Of Pennsylvania Pllc NPPES

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

ON SITE DERMATOLOGY OF PENNSYLVANIA PLLC (NPI 1114369873) is a healthcare organization registered as a dermatology in Lower Gwynedd, Pennsylvania and active in the NPI registry since July 2013. The organization lists Adam S Plotkin, President, as its authorized official.

NPPES Registry Identity

NPI1114369873
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameON SITE DERMATOLOGY OF PENNSYLVANIA PLLC
Location Address728 NORRISTOWN RDLower Gwynedd, PA 19002-2125
Mailing Address4700 Exchange Ct Ste 110Boca Raton, FL 33431-4450 · (561) 314-2000
Fax(561) 989-3665
Organization SubpartNo
Authorized OfficialAdam S PlotkinPresident · (561) 314-2000
Enumeration DateJuly 23, 2013
Last NPPES UpdateApril 23, 20252 updates tracked since enumeration
NPPES CertifiedApril 23, 2025
✔ NPI 1114369873 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.
728 NORRISTOWN RD, Lower Gwynedd, PA 19002

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)

On Site Dermatology Of Pennsylvania 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
StatePennsylvaniaEnrollment IDO20131113001279Non-DME Part B · Clinic/Group PracticeDue dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to On Site Dermatology Of Pennsylvania 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 by Medicare Specialty 2

Nurse Practitioner6
Dermatology4

Clinicians, nearest first (10)

Nurse Practitioner
NPI 1568321743
728 NORRISTOWN RD
Ambler, PA 19002
(877) 345-5300
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1225545106
6701 RIDGE AVE STE 1
Philadelphia, PA 19128
(215) 483-4179
✔ PECOS✔ Accepts Medicare9.7 mi
Dermatology
NPI 1326046830
610 FARM LANE
Doylestown, PA 18901
(215) 728-2754
✔ PECOS✔ Accepts Medicare11 mi
Nurse Practitioner
NPI 1932963824
913 N MARKET ST STE 200
Wilmington, DE 19801
(877) 345-5300
✔ PECOS✔ Accepts Medicare35 mi
Nurse Practitioner
NPI 1396830899
1601 KIRKWOOD HWY
Wilmington, DE 19805
(610) 299-5209
✔ PECOS✔ Accepts Medicare37 mi
Dermatology
NPI 1285733014
10 UNION SQ E SUITE 3C
New York, NY 10003
(212) 844-8800
✔ PECOS75 mi
Nurse Practitioner
NPI 1659970739
4748 E HARRISBURG PIKE
Elizabethtown, PA 17022
(717) 367-9797
✔ PECOS✔ Accepts Medicare76 mi
Dermatology
NPI 1265449003
4601 N FEDERAL HWY
Boca Raton, FL 33431
(561) 362-8000
✔ PECOS✔ Accepts Medicare991 mi
Dermatology
NPI 1508834458
4340 SHERIDAN ST
Hollywood, FL 33021
(954) 983-5533
✔ PECOS✔ Accepts Medicare1,016 mi
Nurse Practitioner
NPI 1316539703
925 YORK DR
Desoto, TX 75115
(972) 572-1600
✔ PECOS✔ Accepts Medicare1,310 mi

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 On Site Dermatology Of Pennsylvania PLLC's NPI number?

The NPI number for On Site Dermatology Of Pennsylvania PLLC is 1114369873. It was assigned to this organization in the NPPES registry on July 23, 2013.

Where is On Site Dermatology Of Pennsylvania PLLC located?

On Site Dermatology Of Pennsylvania PLLC is located at 728 Norristown Rd, Lower Gwynedd, PA 19002. The listed phone number is (877) 345-5300.

What is On Site Dermatology Of Pennsylvania PLLC's specialty?

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

Is On Site Dermatology Of Pennsylvania PLLC enrolled in Medicare?

Yes. On Site Dermatology Of Pennsylvania PLLC is registered in the Medicare PECOS enrollment system.

When is On Site Dermatology Of Pennsylvania 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 (Pennsylvania, 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 On Site Dermatology Of Pennsylvania PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 2 Medicare specialties reassign their Medicare billing to On Site Dermatology Of Pennsylvania 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. The largest specialties are Nurse Practitioner (6) and Dermatology (4). 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.

When was this NPI record last updated?

The NPPES record for On Site Dermatology Of Pennsylvania PLLC was last updated on April 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.