HELEN A. MASHEK MD
NPI 1023012515
Dermatology in Newark, DE

Active since June 13, 2005PECOS EnrolledAccepts Medicare Assignment
75.55/100
CMS Quality Rating
537 STANTON CHRISTIANA RD, SUITE # 207, NEWARK, DE 19713(302) 633-7550(302) 633-7556 Get Directions Write a Review

NPPES record last updated: May 24, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Helen A. Mashek Md NPPES

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

HELEN A. MASHEK MD (NPI 1023012515) is an individual dermatology provider in Newark, Delaware, licensed in Delaware (C10004790) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (1990).

NPPES Registry Identity

NPI1023012515
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameHELEN A. MASHEKCredential: MD
Location Address537 STANTON CHRISTIANA RD, SUITE # 207Newark, DE 19713-2146
Mailing Address537 Stanton Christiana Rd, Ste 207Newark, DE 19713-2148 · (302) 633-7550 · Fax (302) 225-3774
Fax(302) 633-7556
Sole ProprietorNo
Medical School CMSRutgers New Jersey Medical SchoolGraduated 1990
Enumeration DateJune 13, 2005
Last NPPES UpdateMay 24, 2016
NPI 1023012515 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License Licensed in DE · C10004790
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.

537 STANTON CHRISTIANA RD, Newark, DE 19713

Other Identifiers 3

Medicare ID-Type Unspecified868910DE
Medicare UPING28989DE
Medicaid0000709401DE

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Helen A. Mashek Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466636642
PECOS Enrollment IDI20110413000120
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 26

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Aminolevulinic acid hcl for topical administration, 10% gel, 10 mg J7345
Aminolevulinic acid hcl is a topical gel used to treat certain skin conditions. It works by making affected skin cells more sensitive to light, which is then used to destroy these cells. The gel is applied by a healthcare professional.
6,000 services20 patients
Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
3,133 services570 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
1,714 services1,259 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
1,084 services805 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
664 services552 patients
Destruction of skin growth, 1-14 growths 17110
"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.
640 services515 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19713 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.37 typical visit price
range $57.12 – $173.08
Typical copayment $22.09 (range $14.28 – $43.27)
Most-billed visit code 99203
Established Patient
$71.19 typical visit price
range $18.36 – $141.05
Typical copayment $17.79 (range $4.59 – $35.26)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75.55/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality98.38
Promoting Interoperability99
Improvement Activities40
Cost20.97

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dermatology (MOHS-Micrographic Surgery)
537 STANTON CHRISTIANA RD, SUITE # 107
NEWARK, DE 19713
Specialist
537 STANTON CHRISTIANA RD, SUITE 203
NEWARK, DE 19713
Internal Medicine (Rheumatology)
537 STANTON CHRISTIANA RD, SUITE 212
NEWARK, DE 19713
Specialist
537 STANTON CHRISTIANA RD, SUITE 107
NEWARK, DE 19713
Internal Medicine (Gastroenterology)
537 STANTON CHRISTIANA RD, SUITE 203
NEWARK, DE 19713
Internal Medicine (Gastroenterology)
537 STANTON CHRISTIANA RD, SUITE 203 MID ATLANTIC GI CONSULTANTS
NEWARK, DE 19713
Internal Medicine (Gastroenterology)
537 STANTON CHRISTIANA RD, SUITE 203 MID ATLANTIC GI CONSULTANTS
NEWARK, DE 19713
Internal Medicine (Gastroenterology)
537 STANTON CHRISTIANA RD, SUITE 203 MID-ATLANTIC GI CONSULTANTS
NEWARK, DE 19713

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 Helen Mashek's NPI number?

The NPI number for Helen Mashek is 1023012515. It was assigned to this individual provider in the NPPES registry on June 13, 2005.

Where is Helen Mashek located?

Helen Mashek practices at 537 Stanton Christiana Rd Suite # 207, Newark, DE 19713. The listed phone number is (302) 633-7550.

What is Helen Mashek's specialty?

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

Is Helen Mashek enrolled in Medicare?

Yes. Helen Mashek is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Helen Mashek accept?

Health plans from AmeriHealth Caritas Next list Helen Mashek 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 Helen Mashek was last updated on May 24, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.