John Stendahl
NPI 1831480433 · Cardiovascular Disease Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Stendahl is a Cardiovascular Disease Physician provider in New Haven, CT (NPI 1831480433).
Provider details
- NPI number
- 1831480433
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 66313 (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
15 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
167 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) |
|---|---|---|
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 31 | $14 |
| Nuclear Medicine Studies of Blood Flow in Heart Muscle at Rest and With Stress With Concurrent Ct Scan78431 | 22 | $87 |
| Nuclear Medicine Study of Heart Muscle Blood Flow By Pet78434 | 22 | $29 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 21 | $76 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 21 | $148 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 103 | 30 |
| Mavacamtenbrand: Camzyos | 57 | 14 |
| Spironolactone | 54 | 24 |
| Empagliflozinbrand: Jardiance | 36 | — |
| Rosuvastatin Calcium | 34 | 12 |
| Sacubitril/Valsartanbrand: Entresto | 33 | — |
| Furosemide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$78 across 1 record (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
- 2011-04-29
- Last updated
- 2020-07-01
- Certified
- 2020-07-01
Frequently asked questions
- What is John Stendahl's NPI number?
- John Stendahl's National Provider Identifier (NPI) is 1831480433, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Stendahl's specialty?
- John Stendahl is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Stendahl located?
- John Stendahl's practice location on file with NPPES is 20 York St, New Haven, CT 06510-3220.
- What is John Stendahl's phone number?
- The practice phone number listed in the NPPES registry for John Stendahl is (203) 688-4242.
- Does John Stendahl accept Medicare?
- John Stendahl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Stendahl's NPI active?
- Yes — John Stendahl's NPI (1831480433) is active in the NPPES registry as of the last update on 2020-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.