Kyle Patrick O'Brien, APRN
Gerontology Nurse Practitioner · Guilford, CT
Kyle Patrick O'Brien, APRN is a gerontology nurse practitioner with a practice address in Guilford, Connecticut, and NPI 1639950744, issued on Oct 13, 2023. Check the license (Connecticut 12501, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kyle Patrick O'Brien
- Credential
- APRN
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- 12501 CT
Self-reported in NPPES; status is on the state search - Practice location
- 800 Boston Post RD, Guilford, CT 06437
- Phone
- (877) 925-3637
- Enumerated
- Oct 13, 2023
- Record last updated
- Oct 13, 2023
- Medicare enrollment
- Enrolled (PECOS I20240110003830); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 166 in Connecticut → Look up another NPI →
Also registered at 800 Boston Post RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie FoleyFamily Nurse Practitioner1902567316
- Lisa Silvestrini, CRNACertified Registered Nurse Anesthetist1639530207
- Sarah Tullo, APRNFamily Nurse Practitioner1851727903
- Sasa Zivkovic, MDNeuromuscular Medicine (Psychiatry & Neurology) Physician1780650960
Verify Kyle Patrick O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 12501Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024
561 Medicare Part D claims for 373 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf159 claims
- Famotidine91 claims
- Omeprazole64 claims
- Gavilyte-G61 claims
- Pantoprazole Sodium51 claims
- Sutab22 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.
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kyle Patrick O'Brien among 166 gerontology nurse practitioner records in Connecticut
Kyle Patrick O'Brien, APRN is one of 166 gerontology nurse practitioner records with a practice address in Connecticut. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 74% of them.
- NPI issued2023 · 74% of these records are older, 17% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2023 · median 2019 among the 105 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Connecticut
There are 166 gerontology nurse practitioner records in Connecticut.
All 166 in Connecticut → Every provider in Guilford → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Martha Darnall, APRNMeriden, CT 064501609625482
- Manuel MandacMeriden, CT 064511881193043
- Karen Williams, A.P.R.N.Salem, CT 064201184648925
- Carol Lauer, AGNPDerby, CT 064181154182541
- Laura Connors, NPMiddletown, CT 064571467230003
- Jamie Einzig, APRNMiddletown, CT 064571750912622
- Ananias Gloria, NPMiddletown, CT 064571043091408
- Holly JohnsonMiddletown, CT 064571477304269
Common questions
What is Kyle Patrick O'Brien, APRN's NPI number?
Kyle Patrick O'Brien, APRN's National Provider Identifier (NPI) is 1639950744, issued on Oct 13, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Kyle Patrick O'Brien, APRN located?
The NPPES record lists a practice address at 800 Boston Post RD, Guilford, CT, 06437. Phone: (877) 925-3637. Providers update this record themselves, so call before visiting.
How can I verify Kyle Patrick O'Brien, APRN's license?
NPPES lists Connecticut license number 12501, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Kyle Patrick O'Brien, APRN prescribe under Medicare Part D?
In 2024, Kyle Patrick O'Brien, APRN had 561 Medicare Part D claims for 373 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions only.
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.