John Stendahl

  • New Haven, CT
  • Cardiologist
NPI1831480433PAC ID7517251218
Medicare services, 2024
167
Medicare patients, 2024
183
Part D claims, 2024
624
Publications
32
MIPS score, 2024
87
Practice address
50 Division St, New Haven, CT 06511
Practice phone
Call (203) 785-2140
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Yale Medicine

New Haven, Connecticut

See all 5 affiliations

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John Stendahl is a cardiologist in New Haven, Connecticut

John Stendahl practices at Yale Medicine in New Haven, Connecticut.

John Stendahl's NPI, 1831480433, was assigned on April 29, 2011. John Stendahl graduated from University Of Minnesota Medical School in 2011. John Stendahl holds Connecticut license 66313.

NPI and contact details
Medicare PAC ID
7517251218
NPI enumeration date
April 29, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(203) 785-2140
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
41
Medical school graduation
2011

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

John Stendahl practices at Yale Medicine in New Haven, Connecticut

John Stendahl's primary practice is Yale Medicine, at 50 Division St, New Haven, CT 06511 in South Central Ct County. The practice phone is (203) 785-2140.

  • Yale Medicine
    50 Division St, New Haven, CT 06511 · South Central Ct CountyPhone(203) 785-2140

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

John Stendahl is affiliated with 4 sites of care and 1 medical group

John Stendahl's primary practice is Yale Medicine in New Haven, Connecticut. John Stendahl is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links John Stendahl to 2 more hospitals, each named with a free account.

See all 5 affiliations for John Stendahl

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at John Stendahl's practice

Dmand AI tracks the electronic health record (EHR) system at each site where John Stendahl practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Yale MedicineAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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John Stendahl is one of 423 cardiologists in Connecticut

Cardiovascular disease is John Stendahl's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. John Stendahl is licensed in Connecticut.

Specialties and state licenses

  • Cardiovascular disease, ConnecticutPrimaryLicense 66313 · taxonomy 207RC0000X

Cardiologists near John Stendahl

Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

John Stendahl billed Medicare for 167 services in 2024

CMS data shows 167 Medicare services from John Stendahl across 7 procedure codes in 2024, for 183 Medicare patients. Medicare paid $8,055 for them.

Medicare services, 2024167
Medicare patients183
Paid by Medicare$8,055
Procedure codes7

John Stendahl's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 1282024: 9823%
Tests and treatments
2023: 382024: 4826%
Office and hospital visits
2023: 602024: 2165%

Where John Stendahl's Medicare services took place, 2024

  • In an office5533%
  • In a facility11267%

John Stendahl compared with the Connecticut median for cardiologists, 2024

  • John Stendahl
  • Connecticut median
Medicare services
167vs 1,35888% below
Medicare patients
183vs 68073% below
Part D claims
563vs 1,57364% below

Medians across 415 cardiologists in Connecticut with Dmand AI profiles that report each measure.

John Stendahl's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

John Stendahl treated 183 Medicare patients in 2024, average age 74

CMS counts 183 Medicare patients who saw John Stendahl in 2024. The largest group is 75 to 84, with 85 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.67, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts John Stendahl's median patient age at 72, with 46% women.

Medicare patients, 2024183
Average age74
Average risk score1.67
Also on Medicaid16%

John Stendahl's Medicare patients by age, 2024

John Stendahl's Medicare patients by sex, 2024

  • Women8848%
  • Men9552%

Chronic conditions among John Stendahl's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis53%
  4. Ischemic heart disease53%
  5. Heart failure48%
  6. Atrial fibrillation41%
  7. Diabetes38%
  8. Chronic kidney disease31%

Share of Medicare patients with each condition. A patient can have several.

John Stendahl's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women46%
  • Men52%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

John Stendahl wrote 624 Medicare Part D claims in 2024

In 2024, John Stendahl wrote 624 Medicare Part D claims for 96 patients. 67% of them were for generic drugs. CMS names the drug for 563 of them, across 19 drugs with 11 or more claims each, at $1,062,805 in total drug cost. In 2023, CMS named 389 claims across 14 drugs.

Part D claims, 2024624
Drugs named by CMS19
Total drug cost$1.1M
Part D patients96

John Stendahl's Part D claims by kind of drug, 2024

  • Generic420 claims67%
  • Brand-name204 claims33%

John Stendahl's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3892024: 56345%

Drugs named by CMS: 19 in 2024, 14 in 2023.

See all prescribing by John Stendahl

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

John Stendahl scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for John Stendahl for performance year 2024, reported as part of a group. John Stendahl accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

John Stendahl's MIPS scores, performance year 2024

  • 87of 100Final score
  • 77.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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John Stendahl has 32 publications on record

Dmand AI links 32 papers to John Stendahl, published from 2013 to 2025. 2020 was the busiest year, with 7. The most frequent topics are Dogs, Positron-Emission Tomography and Cardiomyopathy, Hypertrophic. John Stendahl has published most often in Circulation. John Stendahl's most frequent co-authors are Albert J. Sinusas, MD, Sharlene Mary Day, MD and Dominic James Richard Abrams, BSC, MBBS, MD.

Papers32
Years published2013 to 2025

John Stendahl's papers by year, 2015 to 2025

Topics John Stendahl writes about most

  • Dogs
  • Positron-Emission Tomography
  • Cardiomyopathy, Hypertrophic
  • Algorithms
  • Heart
  • Radiopharmaceuticals
  • Tomography, Emission-Computed, Single-Photon
  • Atrial Fibrillation

John Stendahl's most frequent co-authors

Recent publications by John Stendahl

See all 32 publications and co-authors

See who John Stendahl researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who John Stendahl works with, so you can find a warm path to the right cardiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

John Stendahl received $78 in industry payments in 2024

CMS Open Payments shows 1 general payment to John Stendahl from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $78.

Companies that paid John Stendahl the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to John Stendahl

Source: Open Payments (CMS), 2025 data, released July 7, 2026

John Stendahl graduated from University Of Minnesota Medical School

John Stendahl graduated from University Of Minnesota Medical School in 2011.

  1. Medical schoolUniversity Of Minnesota Medical School

Source: Dmand AI Professional Profile Data

Sources for John Stendahl's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about John Stendahl

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is John Stendahl's NPI number?

John Stendahl's NPI number is 1831480433. It was assigned on April 29, 2011, and it is active in the NPI Registry.

What does John Stendahl specialize in?

John Stendahl is a cardiologist in New Haven, Connecticut. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).

Where does John Stendahl practice?

John Stendahl practices at 50 Division St, New Haven, CT 06511. John Stendahl's primary practice is Yale Medicine in New Haven, Connecticut. Dmand AI also links John Stendahl to 2 hospitals.

What is John Stendahl's office phone number?

The practice phone on file for John Stendahl is (203) 785-2140.

What is John Stendahl's medical license number?

John Stendahl holds Connecticut license 66313.

Which hospitals is John Stendahl affiliated with?

John Stendahl is affiliated with Yale New Haven Hospital. Dmand AI links John Stendahl to 2 more hospitals.

What medical group is John Stendahl part of?

John Stendahl is linked to Yale Health.

Does John Stendahl accept Medicare?

Yes. CMS data shows John Stendahl billed Medicare for 167 services in 2024, and John Stendahl accepts Medicare assignment.

What is John Stendahl's MIPS score?

John Stendahl's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

How many Medicare patients does John Stendahl see?

CMS counts 183 Medicare patients who saw John Stendahl in 2024, with an average age of 74.

Show 7 more questionsShow fewer questions

What services does John Stendahl bill to Medicare?

In 2024, John Stendahl's most billed Medicare services were nuclear medicine (78452), heart test or procedure (93018) and nuclear medicine (78431).

Where did John Stendahl go to medical school?

John Stendahl graduated from University Of Minnesota Medical School in 2011.

What drugs does John Stendahl prescribe most?

In 2024 Medicare Part D data, John Stendahl's most prescribed drugs by claims were Metoprolol Succinate, Camzyos and Spironolactone.

Has John Stendahl received payments from drug or device companies?

CMS Open Payments shows $78 in general payments to John Stendahl from 1 company from 2024 to 2024. The largest total came from Pfizer Inc.

How long has John Stendahl been practicing?

John Stendahl graduated from medical school in 2011, 15 years ago.

Does John Stendahl do research?

Dmand AI links 32 publications to John Stendahl, published from 2013 to 2025.

Who does John Stendahl publish with?

John Stendahl's most frequent co-authors are Albert J. Sinusas, MD (21 shared papers), Sharlene Mary Day, MD (6 shared papers) and Dominic James Richard Abrams, BSC, MBBS, MD (5 shared papers).

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