NPPES file of Aug 9, 2026

David R. Gruen, MD

Diagnostic Radiology Physician · Stamford, CT

David R. Gruen, MD is a diagnostic radiology physician with a practice address in Stamford, Connecticut, and NPI 1215901327, issued on Feb 15, 2006. Check the license (Connecticut 036693, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215901327
Name
David R. Gruen
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
036693 CT
Self-reported in NPPES; status is on the state search
Practice location
32 Strawberry Hill CT, Stamford, CT 06902
Phone
(203) 276-4152
Enumerated
Feb 15, 2006
Record last updated
Oct 15, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100115000346); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 32 Strawberry Hill CT

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rodrigo Acosta, M.D.Family Medicine Physician1023102092
  2. Raghav Aggarwal, MDInternal Medicine Physician1093244378
  3. Carol Baird, CRNPFamily Nurse Practitioner1932251634
  4. Genie Ball, PA-CSurgical Physician Assistant1841475126
  5. Henry Beecher, M.D.Gastroenterology Physician1396949582
  6. Melissa Bertuzzi, FNP-BCFamily Nurse Practitioner1780067835

Verify David R. Gruen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 036693
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 81.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score88.7
  2. Costout of 100 · 30%38.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $3,598.53

8 payments; by number, the most common kind was food and beverage; the largest payer was GE Healthcare. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Gruen$3,598.53
  2. Specialty average$2,488.38

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Advanced Radiology Consultants LLCTrumbull, CT
  2. Advanced Radiology Mri Centers LPTrumbull, CT
  3. Bridgeport Radiological Associates LLCBridgeport, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David R. Gruen among 619 diagnostic radiology physician records in Connecticut

David R. Gruen, MD is one of 619 diagnostic radiology physician records with a practice address in Connecticut. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 28% of them.

  • NPI issued2006 · 28% of these records are older, 45% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2012 · median 2003 among the 432 with a school on file
  • Record last updated2019 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Connecticut

There are 619 diagnostic radiology physician records in Connecticut.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. William Caragol, M.D.Stamford, CT 069021679526735
  2. William Harley, M.D.Stamford, CT 069021689620569
  3. Harvey Hecht, M.D.Stamford, CT 069021497701379
  4. Benjamin Hentel, M.D.Stamford, CT 069021619154101
  5. Michael King, M.D.Stamford, CT 069021669428546
  6. Emily Kirschenbaum, MDStamford, CT 069021689859126
  7. Jessica Kondraciuk, M.D.Stamford, CT 069021083057061
  8. Parisa Lotfi, M.D.Stamford, CT 069021740276765

Common questions

What is David R. Gruen, MD's NPI number?

David R. Gruen, MD's National Provider Identifier (NPI) is 1215901327, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David R. Gruen, MD located?

The NPPES record lists a practice address at 32 Strawberry Hill CT, Stamford, CT, 06902. Phone: (203) 276-4152. Providers update this record themselves, so call before visiting.

How can I verify David R. Gruen, MD's license?

NPPES lists Connecticut license number 036693, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is David R. Gruen, MD's MIPS final score?

The 2023 MIPS final score is 81.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.