Mary Mattheos, M.D.
Internal Medicine Physician · Lindenhurst, NY
Mary Mattheos, M.D. is an internal medicine physician with a practice address in Lindenhurst, New York, and NPI 1609977719, issued on Sep 25, 2006. Check the license (New York 161119-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mary Mattheos
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 161119-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 350 W Montauk Hwy, Lindenhurst, NY 11757
- Phone
- (631) 226-0388
- Enumerated
- Sep 25, 2006
- Record last updated
- Oct 31, 2024
- Fax
- (631) 226-2992
- Medicare enrollment
- Enrolled (PECOS I20041112001120); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 350 W Montauk Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Summer BaranelloMedical Physician Assistant1437931466
- Sriram Kothandan, RPTPhysical Therapist1003858200
- Diana Scagluso, PA-CPhysician Assistant1306705249
- Christos Vasakiris, D.C.Neurology Chiropractor1477693240
Verify Mary Mattheos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 161119-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average internal medicine physician in 2024
6,169 Medicare Part D claims for 687 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 31 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium331 claims
- Atorvastatin Calcium326 claims
- Losartan Potassium310 claims
- Amlodipine Besylate267 claims
- Levothyroxine Sodium242 claims
- Hydrochlorothiazide204 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: $1,578.13
61 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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.
8 internal medicine physician records list a practice address in Lindenhurst
They are 8 of the 633 NPPES records with a practice address in Lindenhurst, and 12,067 internal medicine physician records in New York.
All 8 in Lindenhurst → All 12,067 in New York → Every provider in Lindenhurst →
Other internal medicine physician records in New York
- Deborah Aanonsen, D.O.Staten Island, NY1952395717
- Nivedita Aanur, M.D.New York, NY1982833471
- Jay Aaron, MDGreat Neck, NY1245332956
- Ahmad AbadiPoughkeepsie, NY1780258517
- Jamsheed Abadi, MDBrooklyn, NY1477537496
- Antonieta Abarientos, MDNew Rochelle, NY1649285123
- Zurab Abayev, M.D.Brooklyn, NY1841283058
- Ehab Abaza, MDNew York, NY1114507555
- Vaidarshi Abbagoni, MDNew York, NY1871237495
- Muhammad AbbasRichmond Hill, NY1053996587
Common questions
What is Mary Mattheos, M.D.'s NPI number?
Mary Mattheos, M.D.'s National Provider Identifier (NPI) is 1609977719, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Mattheos, M.D. located?
The NPPES record lists a practice address at 350 W Montauk Hwy, Lindenhurst, NY, 11757. Phone: (631) 226-0388. Providers update this record themselves, so call before visiting.
How can I verify Mary Mattheos, M.D.'s license?
NPPES lists New York license number 161119-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary Mattheos, M.D. prescribe under Medicare Part D?
In 2024, Mary Mattheos, M.D. had 6,169 Medicare Part D claims for 687 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.