Matthew Massaro, DO
Hospitalist Physician · Dover, DE
Matthew Massaro, DO is a hospitalist physician with a practice address in Dover, Delaware, and NPI 1710069943, issued on Oct 19, 2006. Check the license (Delaware C2-0013015, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Matthew Massaro
- Credential
- DO
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- C2-0013015 DE
OS013166 PA
Self-reported in NPPES; status is on the state search - Practice location
- 640 S State St, Dover, DE 19901
- Phone
- (302) 744-7581
- Enumerated
- Oct 19, 2006
- Record last updated
- Jul 5, 2022
- Fax
- (302) 744-7332
- Medicare enrollment
- Enrolled (PECOS I20190321000006); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2003
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 43 in Delaware → Look up another NPI →
Also registered at 640 S State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Abbrescia, DOEmergency Medicine Physician1992740625
- Sarah Abdallah, MDStudent in an Organized Health Care Education/Training Program1265374789
- Joseph Raphael Ablaza, M.D.Internal Medicine Physician1366892291
- Anastazia Acevedo, PA-CPhysician Assistant1831495282
- Aashish AcharyaInternal Medicine Physician1912523424
- Denita Adams, CRNACertified Registered Nurse Anesthetist1427233964
Verify Matthew Massaro 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 C2-0013015Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average hospitalist physician in 2024
279 Medicare Part D claims for 113 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 14 claims were for opioids.
Most prescribed
- Cefuroxime16 claims
- Pantoprazole Sodium11 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.
Industry payments in 2024: $100.00
1 payment: food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 7,324 providers of this specialty with any payment received $494.84 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
- Apogee Medical Group Delaware IncDover, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Massaro among 43 hospitalist physician records in Delaware
Matthew Massaro, DO is one of 43 hospitalist physician records with a practice address in Delaware. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.
- NPI issued2006 · 0% of these records are older, 81% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2003 · median 2012 among the 29 with a school on file
- Record last updated2022 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Delaware
There are 43 hospitalist physician records in Delaware.
All 43 in Delaware → Every provider in Dover → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Kirill Alekseyev, MD, MBADover, DE 199041386054484
- George Kluchnik, MDLewes, DE 199581023133618
- Mohammad Arsalan, M.DMilford, DE 199631063965630
- Nana Yaw Darkwa, M.DMilford, DE 199631770607376
- Muhammad Syed, M.DMilford, DE 199631336378330
- Patricia Donovan, MDSeaford, DE 199731356570394
- Robert Ferber, MDSeaford, DE 199731447363742
- Hilda Kabali, MDSeaford, DE 199731295093193
Common questions
What is Matthew Massaro, DO's NPI number?
Matthew Massaro, DO's National Provider Identifier (NPI) is 1710069943, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Massaro, DO located?
The NPPES record lists a practice address at 640 S State St, Dover, DE, 19901. Phone: (302) 744-7581. Providers update this record themselves, so call before visiting.
How can I verify Matthew Massaro, DO's license?
NPPES lists Delaware license number C2-0013015, 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 Matthew Massaro, DO prescribe under Medicare Part D?
In 2024, Matthew Massaro, DO had 279 Medicare Part D claims for 113 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
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.