Jill Denowitz, M.D.
NPI 1215013941 · Internal Medicine Physician · Westport, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jill Denowitz, M.D. is a Internal Medicine Physician provider in Westport, CT (NPI 1215013941).
Provider details
- NPI number
- 1215013941
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 033447 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
802 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 198 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 196 | $134 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 123 | $95 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 92 | $136 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 90 | $20 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 158 | 40 |
| Rosuvastatin Calcium | 107 | 29 |
| Amlodipine Besylate | 92 | 17 |
| Levothyroxine Sodiumbrand: Synthroid | 68 | 15 |
| Semaglutidebrand: Ozempic | 52 | — |
| Escitalopram Oxalate | 47 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$651 across 29 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2022-06-01
- Certified
- 2022-06-01
Frequently asked questions
- What is Jill Denowitz's NPI number?
- Jill Denowitz's National Provider Identifier (NPI) is 1215013941, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jill Denowitz's specialty?
- Jill Denowitz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jill Denowitz located?
- Jill Denowitz's practice location on file with NPPES is 333 Post Road West, Westport, CT 06880.
- What is Jill Denowitz's phone number?
- The practice phone number listed in the NPPES registry for Jill Denowitz is (203) 571-3000.
- Does Jill Denowitz accept Medicare?
- Jill Denowitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jill Denowitz's NPI active?
- Yes — Jill Denowitz's NPI (1215013941) is active in the NPPES registry as of the last update on 2022-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.