Doctor profile · Federal record

Dr. Jonathan Siegfried, MD

Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Interventional Cardiology Physician · Internal Medicine Physician · New Haven, CT

  • NPI 1720251549
  • Accepts Medicare
  • MIPS 81.7 / 100 · 2023
  • 18 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
46 Prince St Ste 500
New Haven, CT 065191600
(203) 867-5300
Mailing address
46 Prince St Ste 310
New Haven, CT 065191600

Credentials & registration

NPPES · NUCC
NPI registered
April 2008 — 18 yrs on file
Profile last updated
September 30, 2020
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State licenses (2)
Connecticut #54031 · New York #254548

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1720251549. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
958
Distinct HCPCS
10
Medicare allowed
$117,474
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 201 137 $135
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 174 173 $212
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 129 128 $16
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 77 27 $83
J2785 Injection, regadenoson, 0.1 mg 72 18 $59
A9500 Technetium tc-99m sestamibi, diagnostic, per study dose 56 28 $60
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 42 42 $13
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 40 36 $136
99213 Established patient office or other outpatient visit, 20-29 minutes 37 29 $96
99204 New patient office or other outpatient visit, 45-59 minutes 32 32 $177

In context: peer comparison

Among 28 peers in New Haven Cardiovascular Disease Physician, average services per provider: 106. This provider delivers 9.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$88
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Novo Nordisk INC 2 $41.55
Novartis Pharmaceuticals Corporation 1 $23.16
Abbott Laboratories 1 $23.04

By nature of payment

Food and Beverage
$88

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
562
Patients
197
Total drug cost
$167,482
Drug Type Claims Patients Total cost
Carvedilol Generic 73 29 $846
Atorvastatin Calcium Generic 69 29 $1,204
Losartan Potassium Generic 66 23 $751
Amlodipine Besylate Generic 49 21 $475
Furosemide Generic 46 20 $434
Eliquis (Apixaban) Brand 45 24 $77,455
Metoprolol Succinate Generic 42 22 $979
Rosuvastatin Calcium Generic 37 14 $627
Metoprolol Tartrate Generic 28 15 $387
Farxiga (Dapagliflozin Propanediol) Brand 23 0 $37,893

Frequently asked questions

Auto-generated from federal data
What is Dr. Jonathan Siegfried's medical specialty?
Dr. Jonathan Siegfried practices Cardiovascular Disease Physician in New Haven, CT.
Where does Dr. Jonathan Siegfried practice?
Dr. Jonathan Siegfried practices at 46 Prince St Ste 500, New Haven, CT 065191600. Office phone: 2038675300.
What is Dr. Jonathan Siegfried's NPI?
Dr. Jonathan Siegfried's National Provider Identifier (NPI) is 1720251549, issued by NPPES.
Does Dr. Jonathan Siegfried accept Medicare assignment?
Yes. Dr. Jonathan Siegfried accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Siegfried commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000). Source: CMS Medicare Physician & Other Practitioners file.