Gregory Guion, APRN
Psychiatric/Mental Health Nurse Practitioner · Danbury, CT
Gregory Guion, APRN is a psychiatric/mental health nurse practitioner with a practice address in Danbury, Connecticut, and NPI 1154937910, issued on Sep 17, 2020. Check the license (Connecticut 9182, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Guion
- Credential
- APRN
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 9182 CT
Self-reported in NPPES; status is on the state search - Practice location
- 72 North St, Danbury, CT 06810
- Phone
- (860) 996-1569
- Enumerated
- Sep 17, 2020
- Record last updated
- Nov 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (860) 257-7999
- Medicare enrollment
- Enrolled (PECOS I20211202002066); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,108 in Connecticut → Look up another NPI →
Also registered at 72 North St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Guion in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 9182Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
229 Medicare Part D claims for 19 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.
Most prescribed
- Alprazolam20 claims
- Gabapentin18 claims
- Escitalopram Oxalate17 claims
- Dextroamphetamine-Amphetamine15 claims
- Quetiapine Fumarate13 claims
- Eszopiclone11 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.
Industry payments in 2024: $1,005.30
43 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregory Guion among 1,108 psychiatric/mental health nurse practitioner records in Connecticut
Gregory Guion, APRN is one of 1,108 psychiatric/mental health nurse practitioner records with a practice address in Connecticut. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 54% of them.
- NPI issued2020 · 54% of these records are older, 40% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2019 · median 2020 among the 566 with a school on file
- Record last updated2021 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 psychiatric/mental health nurse practitioner records list a practice address in Danbury
They are 30 of the 2,412 NPPES records with a practice address in Danbury, and 1,108 psychiatric/mental health nurse practitioner records in Connecticut.
All 1,108 in Connecticut → Every provider in Danbury → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- John Debisceglie, NPDanbury, CT 068101912285396
- Donna DraperDanbury, CT 068101912212358
- Tamika Edmond, NPDanbury, CT 068101316255821
- Robyn Hoffman, APRNDanbury, CT 068101275711913
- Cecelia James, APRNDanbury, CT 068101972753945
- Ingeborg Johannssen-Schultz, APRNDanbury, CT 068101568517142
- Karen Mullaney, NPDanbury, CT 068101437107075
- Teegan Ogiela, APRNDanbury, CT 068101609217058
Common questions
What is Gregory Guion, APRN's NPI number?
Gregory Guion, APRN's National Provider Identifier (NPI) is 1154937910, issued on Sep 17, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Guion, APRN located?
The NPPES record lists a practice address at 72 North St, Danbury, CT, 06810. Phone: (860) 996-1569. Providers update this record themselves, so call before visiting.
How can I verify Gregory Guion, APRN's license?
NPPES lists Connecticut license number 9182, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Guion, APRN prescribe under Medicare Part D?
In 2024, Gregory Guion, APRN had 229 Medicare Part D claims for 19 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.