NPPES file of Aug 9, 2026

Casey A. Doyle, APRN

Family Nurse Practitioner · Greenwich, CT

Casey A. Doyle, APRN is a family nurse practitioner with a practice address in Greenwich, Connecticut, and NPI 1184091217, issued on Aug 24, 2015. Check the license (Connecticut 006109, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184091217
Name
Casey A. Doyle
Credential
APRN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
006109 CT
Self-reported in NPPES; status is on the state search
Practice location
15 Valley Dr Ste 200, Greenwich, CT 06831
Phone
(203) 863-4210
Enumerated
Aug 24, 2015
Record last updated
Sep 1, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(203) 622-1872
Medicare enrollment
Enrolled (PECOS I20151102000832); 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 15 Valley Dr Ste 200

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

  1. Matthew Delmastro, APRNNurse Practitioner1669937959
  2. Tara Robertson, APRNFamily Nurse Practitioner1679069561

Verify Casey A. Doyle 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 006109
    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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5% more Medicare Part D claims than the average family nurse practitioner in 2024

1,368 Medicare Part D claims for 465 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Casey Doyle1,368
  2. Specialty average1,305

Most prescribed

  1. Amlodipine Besylate128 claims
  2. Metoprolol Succinate128 claims
  3. Rosuvastatin Calcium113 claims
  4. Eliquis99 claims
  5. Warfarin Sodium94 claims
  6. Losartan Potassium90 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 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 score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  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).

Bills Medicare through one group practice

  1. Yale UniversityNew Haven, CT

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

Casey A. Doyle among 2,669 family nurse practitioner records in Connecticut

Casey A. Doyle, 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 2015, is newer than 33% of them.

  • NPI issued2015 · 33% of these records are older, 63% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2014 · median 2018 among the 1,664 with a school on file
  • Record last updated2015 · 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).

39 family nurse practitioner records list a practice address in Greenwich

They are 39 of the 1,184 NPPES records with a practice address in Greenwich, and 2,669 family nurse practitioner records in Connecticut.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Avigail ItzkowitzGreenwich, CT 068311760094437
  2. Elisa O'Brien, APRNGreenwich, CT 068311912262973
  3. Tara Robertson, APRNGreenwich, CT 068311679069561
  4. Latasha Shaw, APRNGreenwich, CT 068311841069325
  5. Amy AkerleyGreenwich, CT 068301477438315
  6. Alyson Barton, NPGreenwich, CT 068301619690542
  7. Kimberly BruennGreenwich, CT 068301104750561
  8. Angela Chwick, FNPGreenwich, CT 068301154026086

Common questions

What is Casey A. Doyle, APRN's NPI number?

Casey A. Doyle, APRN's National Provider Identifier (NPI) is 1184091217, issued on Aug 24, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Casey A. Doyle, APRN located?

The NPPES record lists a practice address at 15 Valley Dr Ste 200, Greenwich, CT, 06831. Phone: (203) 863-4210. Providers update this record themselves, so call before visiting.

How can I verify Casey A. Doyle, APRN's license?

NPPES lists Connecticut license number 006109, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Casey A. Doyle, APRN prescribe under Medicare Part D?

In 2024, Casey A. Doyle, APRN had 1,368 Medicare Part D claims for 465 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Casey A. Doyle, APRN's MIPS final score?

The 2023 MIPS final score is 73.6 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.