Doctor profile · Federal record

Dr. Jill Denowitz, M.D.

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

  • NPI 1215013941
  • Accepts Medicare
  • 28 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
333 Post Road West, Lower Level
Westport, CT 06880
(203) 571-3000
fax (203) 349-8179

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
June 1, 2022
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #033447

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215013941. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,183
Distinct HCPCS
10
Medicare allowed
$85,920
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 214 114 $130
36415 Insertion of needle into vein for collection of blood sample 168 96 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 90 63 $92
G0444 Annual depression screening, 5 to 15 minutes 88 88 $19
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 84 84 $135
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 77 74 $15
G0008 Administration of influenza virus vaccine 64 64 $33
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 45 25 $25
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 43 38 $50
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 43 43 $262

In context: peer comparison

Among 3 peers in this city , average services per provider: 88. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$651
Transactions
29
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 8 $160.55
AstraZeneca Pharmaceuticals LP 7 $151.61
Novo Nordisk Inc 4 $88.86
GlaxoSmithKline, LLC. 2 $47.70
Salix Pharmaceuticals, a division of Bausch Health US, LLC 2 $43.54
Exact Sciences Corporation 1 $33.85
Amgen Inc. 1 $31.14
Merck Sharp & Dohme LLC 1 $24.93
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $23.30
Astellas Pharma US Inc 1 $23.17
Tempus AI, Inc 1 $22.38

By nature of payment

Food and Beverage
$651

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
796
Patients
182
Total drug cost
$21,480
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 154 43 $2,620
Rosuvastatin Calcium Generic 94 23 $3,247
Amlodipine Besylate Generic 67 19 $817
Synthroid (Levothyroxine Sodium) Brand 59 14 $6,023
Lisinopril Generic 56 11 $590
Levothyroxine Sodium Generic 54 15 $812
Escitalopram Oxalate Generic 41 0 $948
Sertraline Hcl Generic 39 0 $510
Losartan Potassium Generic 37 0 $474
Montelukast Sodium Generic 36 0 $652

Frequently asked questions

Auto-generated from federal data
What is Dr. Jill Denowitz's medical specialty?
Dr. Jill Denowitz practices Internal Medicine Physician in Westport, CT.
Where does Dr. Jill Denowitz practice?
Dr. Jill Denowitz practices at 333 Post Road West, Westport, CT 06880. Office phone: 2035713000.
What is Dr. Jill Denowitz's NPI?
Dr. Jill Denowitz's National Provider Identifier (NPI) is 1215013941, issued by NPPES.
Does Dr. Jill Denowitz accept Medicare assignment?
Yes. Dr. Jill Denowitz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jill Denowitz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.