Doctor profile · Federal record

Dr. Mark Piekarsky, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · New Britain, CT

  • NPI 1558355792
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Kensington Ave, Grove Hill Medical Center
New Britain, CT 060513916
(860) 832-8150
fax (860) 224-6953

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
July 9, 2007
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #037646
Medicaid (2)
CT #001376468 · CT #004215324

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558355792. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
895
Distinct HCPCS
7
Medicare allowed
$89,593
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 354 195 $97
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 189 189 $139
99214 Established patient office or other outpatient visit, 30-39 minutes 162 121 $137
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 81 79 $16
G0008 Administration of influenza virus vaccine 51 49 $33
90662 Influenza vaccine split virus, preservative free 47 45 $72
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 11 11 $56

In context: peer comparison

Among 25 peers in New Britain Internal Medicine Physician, average services per provider: 100. This provider delivers 9.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,482
Transactions
101
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 12 $352.50
GlaxoSmithKline, LLC. 16 $310.99
Lilly USA, LLC 8 $278.64
Pfizer INC. 10 $194.28
Novo Nordisk INC 9 $181.15
Merck Sharp & Dohme LLC 6 $133.00
Boehringer Ingelheim Pharmaceuticals, INC. 8 $125.79
Exact Sciences Corporation 6 $120.93
Abbott Laboratories 5 $90.98
Astellas Pharma US INC 3 $85.30
Phathom Pharmaceuticals, INC. 5 $84.56
E.R. Squibb & Sons, L.L.C. 4 $74.12
Bayer Healthcare Pharmaceuticals INC. 3 $73.92
Amgen INC. 3 $58.95
Abbvie INC. 3 $57.13

By nature of payment

Food and Beverage
$2,482

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,200
Patients
1,126
Total drug cost
$53,031
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 986 269 $13,460
Lisinopril Generic 451 124 $4,015
Amlodipine Besylate Generic 400 120 $4,262
Levothyroxine Sodium Generic 364 94 $6,963
Metformin Hcl Generic 283 76 $2,390
Losartan Potassium Generic 264 70 $4,271
Rosuvastatin Calcium Generic 236 74 $5,387
Escitalopram Oxalate Generic 212 58 $3,255
Carvedilol Generic 191 51 $2,463
Hydrochlorothiazide Generic 164 46 $879

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Piekarsky's medical specialty?
Dr. Mark Piekarsky practices Internal Medicine Physician in New Britain, CT.
Where does Dr. Mark Piekarsky practice?
Dr. Mark Piekarsky practices at 300 Kensington Ave, New Britain, CT 060513916. Office phone: 8608328150.
What is Dr. Mark Piekarsky's NPI?
Dr. Mark Piekarsky's National Provider Identifier (NPI) is 1558355792, issued by NPPES.
Does Dr. Mark Piekarsky accept Medicare assignment?
Yes. Dr. Mark Piekarsky accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Piekarsky commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.