Doctor profile · Federal record

Dr. Mark Mauriello, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Wallingford, CT

  • NPI 1255627618
  • Accepts Medicare
  • 18 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
50 Gaylord Farm RD
Wallingford, CT 06492
(203) 284-2800
fax (203) 294-8705
Additional location
22725 Highway 76 E
Clinton, SC 293257527
(864) 833-9100
fax (864) 833-9458
Additional location
701 Grove RD Fl 5
Greenville, SC 296054210
(864) 455-4411
fax (864) 455-4480
Mailing address
20 York Street, Cb-2041
New Haven, CT 065103220

Credentials & registration

NPPES · NUCC
NPI registered
June 2011 — 15 yrs on file
Profile last updated
July 18, 2024
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Connecticut #52527 · South Carolina #37293
Medicaid
SC #372938

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255627618. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
685
Distinct HCPCS
5
Medicare allowed
$93,986
HCPCS Description Services Patients Avg allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 277 275 $131
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 267 258 $173
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 108 39 $78
99239 Hospital discharge day management, more than 30 minutes 21 20 $111
99238 Hospital discharge day management, 30 minutes or less 12 12 $80

In context: peer comparison

Among 6 peers in this city , average services per provider: 75. This provider delivers 9.1× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Mauriello's medical specialty?
Dr. Mark Mauriello practices Internal Medicine Physician in Wallingford, CT.
Where does Dr. Mark Mauriello practice?
Dr. Mark Mauriello practices at 50 Gaylord Farm RD, Wallingford, CT 06492. Office phone: 2032842800.
What is Dr. Mark Mauriello's NPI?
Dr. Mark Mauriello's National Provider Identifier (NPI) is 1255627618, issued by NPPES.
Does Dr. Mark Mauriello accept Medicare assignment?
Yes. Dr. Mark Mauriello accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Mauriello commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.