Doctor profile · Federal record

Dr. Mary Mattheos, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Lindenhurst, NY

  • NPI 1609977719
  • Accepts Medicare
  • 47 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
350 W Montauk Hwy
Lindenhurst, NY 117575630
(631) 226-0388
fax (631) 226-2992

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
October 31, 2024
Year of graduation
1979 — 47 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New York #161119-1

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609977719. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
13,988
Distinct HCPCS
10
Medicare allowed
$564,351
HCPCS Description Services Patients Avg allowed
95004 Test for allergy using allergenic extract 7,352 94 $5
99213 Established patient office or other outpatient visit, 20-29 minutes 2,481 572 $95
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 560 78 $56
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 556 73 $60
99214 Established patient office or other outpatient visit, 30-39 minutes 539 365 $144
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 484 88 $72
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 310 310 $149
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 261 250 $17
94010 Test to measure expiratory airflow and volume 176 173 $32
92552 Test for hearing various pitches using earphone 143 143 $39

In context: peer comparison

Among 3 peers in Lindenhurst Internal Medicine Physician, average services per provider: 281. This provider delivers 50× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,578
Transactions
60
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 7 $278.45
Intra-Sana Laboratories 5 $192.40
Abbvie INC. 8 $163.20
Sumitomo Pharma America, INC. 2 $153.29
Pfizer INC. 11 $149.59
Exact Sciences Corporation 4 $94.98
Corcept Therapeutics 4 $87.91
Novartis Pharmaceuticals Corporation 4 $81.11
DePuy Synthes Sales INC. 2 $69.36
Renalytix Ai, INC. 3 $67.70
Amgen INC. 3 $63.90
Abbott Laboratories 3 $58.56
Boehringer Ingelheim Pharmaceuticals, INC. 2 $52.54
Esperion Therapeutics, INC. 1 $25.00
Lundbeck LLC 1 $24.12

By nature of payment

Food and Beverage
$1,578

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,856
Patients
775
Total drug cost
$162,072
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 251 93 $2,866
Losartan Potassium Generic 224 80 $2,464
Rosuvastatin Calcium Generic 186 78 $3,182
Levothyroxine Sodium Generic 168 61 $3,457
Amlodipine Besylate Generic 150 68 $1,145
Metoprolol Succinate Generic 134 63 $2,587
Hydrochlorothiazide Generic 118 52 $696
Simvastatin Generic 98 35 $925
Montelukast Sodium Generic 85 39 $1,173
Valsartan Generic 82 30 $4,244

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Mattheos's medical specialty?
Dr. Mary Mattheos practices Internal Medicine Physician in Lindenhurst, NY.
Where does Dr. Mary Mattheos practice?
Dr. Mary Mattheos practices at 350 W Montauk Hwy, Lindenhurst, NY 117575630. Office phone: 6312260388.
What is Dr. Mary Mattheos's NPI?
Dr. Mary Mattheos's National Provider Identifier (NPI) is 1609977719, issued by NPPES.
Does Dr. Mary Mattheos accept Medicare assignment?
Yes. Dr. Mary Mattheos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Mattheos commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Established patient office or other outpatient visit (HCPCS 99213); Management using the results of remote vital sign monitoring per calendar month (HCPCS 99457). Source: CMS Medicare Physician & Other Practitioners file.