NPPES file of Aug 9, 2026

John R. Leopold, APRN

Family Nurse Practitioner · Danbury, CT

John R. Leopold, APRN is a family nurse practitioner with a practice address in Danbury, Connecticut, and NPI 1891880803, issued on Oct 4, 2006. Check the license (Connecticut 003045, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1891880803
Name
John R. Leopold
Credential
APRN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
003045 CT
Self-reported in NPPES; status is on the state search
Practice location
24 Hospital Ave, Danbury, CT 06810
Phone
(203) 885-3051
Enumerated
Oct 4, 2006
Record last updated
Dec 6, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070117000011); 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 24 Hospital Ave

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

  1. Jacqueline AddonaStudent in an Organized Health Care Education/Training Program1669232443
  2. Fernando Afonso, M.D.Internal Medicine Physician1992980536
  3. Alka Aggarwal, MDInternal Medicine Physician1427041987
  4. Mohamed Ahmed, M.D.Internal Medicine Physician1235391756
  5. Syed Rakin Ahmed, MD, PHDStudent in an Organized Health Care Education/Training Program1518809870
  6. Gregory Albert, MDAnesthesiology Physician1588797930

Verify John R. Leopold in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 003045
    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
Find 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 MIPS final score for 2023 (Medicare payment program): 94.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score78.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Nuvance Health Medical Practice CT IncDanbury, CT

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

John R. Leopold among 2,669 family nurse practitioner records in Connecticut

John R. Leopold, APRN is one of 2,669 family nurse practitioner records with a practice address in Connecticut. 76% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 91% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2002 · median 2018 among the 1,664 with a school on file
  • Record last updated2017 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

60 family nurse practitioner records list a practice address in Danbury

They are 60 of the 2,412 NPPES records with a practice address in Danbury, and 2,669 family nurse practitioner records in Connecticut.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Tara Ackerly, FNPDanbury, CT 068101831331602
  2. Carolynn BrunoDanbury, CT 068101912159765
  3. Marie Elena Cordisco, APRNDanbury, CT 068101265617310
  4. Daniel Fombo, MSN APNDanbury, CT 068101730348442
  5. Robin Frierson, N.P.Danbury, CT 068101811148232
  6. Rose Haklits, APRN, FNPDanbury, CT 068101285816280
  7. Jennifer Handau, APRNDanbury, CT 068101417175845
  8. Anjani Lewick, NURSE PRACTITIONERDanbury, CT 068101396840971

Common questions

What is John R. Leopold, APRN's NPI number?

John R. Leopold, APRN's National Provider Identifier (NPI) is 1891880803, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John R. Leopold, APRN located?

The NPPES record lists a practice address at 24 Hospital Ave, Danbury, CT, 06810. Phone: (203) 885-3051. Providers update this record themselves, so call before visiting.

How can I verify John R. Leopold, APRN's license?

NPPES lists Connecticut license number 003045, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

What is John R. Leopold, APRN's MIPS final score?

The 2023 MIPS final score is 94.2 of 100. 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.