Helen A. Mashek, MD
Dermatology Physician · Newark, DE
Helen A. Mashek, MD is a dermatology physician with a practice address in Newark, Delaware, and NPI 1023012515, issued on Jun 13, 2005. Check the license (Delaware C10004790, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Helen A. Mashek
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- C10004790 DE
Self-reported in NPPES; status is on the state search - Practice location
- 537 Stanton Christiana RD, Newark, DE 19713
- Phone
- (302) 633-7550
- Enumerated
- Jun 13, 2005
- Record last updated
- May 24, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (302) 633-7556
- Medicaid ID
- 0000709401 DE
- Medicare enrollment
- Enrolled (PECOS I20110413000120); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 1990
- Entity
- Type 1 · individual
Also registered at 537 Stanton Christiana RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara Abbo, CRNPFamily Nurse Practitioner1104223007
- Hasan Ali, MDGastroenterology Physician1427064260
- Hannah Anderson, MDDermatology Physician1265992754
- VI Banh, PA-CPhysician Assistant1154897882
- Daniella Benson, PA,C.Physician Assistant1396964128
- Michele Compton, PA-CMedical Physician Assistant1629103536
Verify Helen A. Mashek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C10004790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% more Medicare Part D claims than the average dermatology physician in 2024
1,095 Medicare Part D claims for 422 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Ketoconazole197 claims
- Hydrocortisone155 claims
- Triamcinolone Acetonide84 claims
- Mupirocin61 claims
- Clobetasol Propionate47 claims
- Doxycycline Hyclate46 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 75.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,694.65
81 payments; by number, the most common kind was food and beverage; the largest payer was Dermavant Sciences, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Panzer Dermatology AssociatesNewark, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dermatology Physician providers in Delaware
There are 27 dermatology physician records in Delaware.
Other dermatology physician records in Delaware
- Hannah Anderson, MDNewark, DE1265992754
- Joseph Andrews, M.D.Dover, DE1548321714
- Curtis Asbury, M.D.Selbyville, DE1124259254
- Richard Bonder, M.D.Wilmington, DE1932105194
- Kiera Booth, MDNewark, DE1184006835
- Thomas Burke, D.O.Newark, DE1881698389
- Gina Caputo, DONewark, DE1124464201
- Allison Hager, FNP-BCMillsboro, DE1346738853
- Katrina Hansen, DOHockessin, DE1588168553
- Matthew Hanson, MDNewark, DE1285896829
Common questions
What is Helen A. Mashek, MD's NPI number?
Helen A. Mashek, MD's National Provider Identifier (NPI) is 1023012515, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Helen A. Mashek, MD located?
The NPPES record lists a practice address at 537 Stanton Christiana RD, Newark, DE, 19713. Phone: (302) 633-7550. Providers update this record themselves, so call before visiting.
How can I verify Helen A. Mashek, MD's license?
NPPES lists Delaware license number C10004790, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Helen A. Mashek, MD prescribe under Medicare Part D?
In 2024, Helen A. Mashek, MD had 1,095 Medicare Part D claims for 422 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Helen A. Mashek, MD's MIPS final score?
The 2023 MIPS final score is 75.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.