Joseph Blaise Guarnaccia, M.D.
Neurology Physician · Derby, CT
Joseph Blaise Guarnaccia, M.D. is a neurology physician with a practice address in Derby, Connecticut, and NPI 1235164427, issued on Jul 12, 2006. Check the license (Connecticut 031179, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Joseph Blaise Guarnaccia
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 031179 CT
MD10454 RI
Self-reported in NPPES; status is on the state search - Practice location
- 350 Seymour Ave # 1C, Derby, CT 06418
- Phone
- (203) 732-1290
- Enumerated
- Jul 12, 2006
- Record last updated
- Jul 15, 2026
- Fax
- (203) 732-1299
- Medicaid ID
- 001311795 CT
- Medicare enrollment
- Enrolled (PECOS I20081208000729); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 1987
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Joseph Blaise Guarnaccia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 031179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.6 times the Medicare Part D claims of the average neurology physician in 2024
7,739 Medicare Part D claims for 391 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Dextroamphetamine-Amphetamine584 claims
- Gabapentin490 claims
- Baclofen425 claims
- Tizanidine Hcl375 claims
- Prednisone361 claims
- Pyridostigmine Bromide361 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: $12,481.58
25 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 10,858 providers of this specialty with any payment received $8,318.07 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.
Bills Medicare through one group practice
- Affinity Physicians LLC.Warwick, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neurology Physician providers in Connecticut
There are 345 neurology physician records in Connecticut.
Other neurology physician records in Connecticut
- Wasan Abd Wahab, M.D.New Haven, CT1881380053
- Ashish Adlakha, MDFarmington, CT1639344120
- Mohamed Afify, MDNew Haven, CT1033738588
- Anees Ahmed, MDManchester, CT1184692089
- Anthony Alessi, MDNorwich, CT1174573612
- Catherine Alessi, MDFarmington, CT1477896900
- Stephanie Alessi-Larosa, M.D., M.P.H.Hartford, CT1255742326
- Syed Musadiq Ali, MDHartford, CT1376276477
- Hamada Altalib, D.O.,M.P.H.West Haven, CT1073700548
- Susan Arnold, MDNew Haven, CT1720040587
Common questions
What is Joseph Blaise Guarnaccia, M.D.'s NPI number?
Joseph Blaise Guarnaccia, M.D.'s National Provider Identifier (NPI) is 1235164427, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Blaise Guarnaccia, M.D. located?
The NPPES record lists a practice address at 350 Seymour Ave # 1C, Derby, CT, 06418. Phone: (203) 732-1290. Providers update this record themselves, so call before visiting.
How can I verify Joseph Blaise Guarnaccia, M.D.'s license?
NPPES lists Connecticut license number 031179, 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.
How much does Joseph Blaise Guarnaccia, M.D. prescribe under Medicare Part D?
In 2024, Joseph Blaise Guarnaccia, M.D. had 7,739 Medicare Part D claims for 391 beneficiaries; the average among neurology physician prescribers was 1,370. 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.