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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOSEPH BLAISE GUARNACCIA M.D.
NPI 1235164427
Psychiatry & Neurology - Neurology in Derby, CT

Active since July 12, 2006PECOS EnrolledAccepts Medicare Assignment
350 SEYMOUR AVE # 1C, DERBY, CT 06418(203) 732-1290(203) 732-1299 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 15, 2026, Mar 9, 2022 (2 updates tracked since 2022).

About Dr. Joseph Blaise Guarnaccia M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOSEPH BLAISE GUARNACCIA M.D. (NPI 1235164427) is an individual neurology provider in Derby, Connecticut, licensed in Connecticut (031179) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with South County Hospital Inc, and is a graduate of Des Moines University Of Osteopathic Medicine And Health Sciences (1987).

NPPES Registry Identity

NPI1235164427
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. JOSEPH BLAISE GUARNACCIACredential: M.D.
Location Address350 SEYMOUR AVE # 1CDerby, CT 06418-1336
Mailing Address137 Cold Spring StNew Haven, CT 06511-2205 · (203) 676-7436 · Fax (203) 732-1299
Phone(203) 732-1290
Fax(203) 732-1299
Sole ProprietorYes
Medical School CMSDes Moines University Of Osteopathic Medicine And Health SciencesGraduated 1987
Enumeration DateJuly 12, 2006
Last NPPES UpdateJuly 15, 20262 updates tracked since enumeration
NPPES CertifiedJuly 15, 2026
✔ NPI 1235164427 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in CT · 031179✔ Licensed in RI · MD10454
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
350 SEYMOUR AVE # 1C, Derby, CT 06418
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Other Identifiers 1

Medicaid001311795CT

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Joseph Blaise Guarnaccia M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID244391357
PECOS Enrollment IDI20081208000729
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
226 services119 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
75 services44 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
44 services34 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
14 services13 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
12 services11 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

South County Hospital Inc

Acute Care Hospitals · Wakefield, RI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number410008
Location100 Kenyon AveWakefield, RI 02879 · Washington County
Emergency services Birthing friendly

Kent County Memorial Hospital

Acute Care Hospitals · Warwick, RI
3/5 CMS rating
OwnershipProprietary
CMS Certification Number410009
Location455 Toll Gate RdWarwick, RI 02886 · Kent County
Emergency services Birthing friendly

Women & Infants Hospital Of Rhode Island

Acute Care Hospitals · Providence, RI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number410010
Location101 Dudley StreetProvidence, RI 02905 · Providence County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06418 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
1 supplier14 claims397 services$4.13 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
1 supplier11 claims7,746 services$0.25 avg. paid by Medicare
Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630
DME-Other DME · category DE000N
1 supplier12 claims12 services$39.38 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joseph Guarnaccia's NPI number?

The NPI number for Joseph Guarnaccia is 1235164427. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Joseph Guarnaccia located?

Joseph Guarnaccia practices at 350 Seymour Ave # 1C, Derby, CT 06418. The listed phone number is (203) 732-1290.

What is Joseph Guarnaccia's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Joseph Guarnaccia enrolled in Medicare?

Yes. Joseph Guarnaccia is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Joseph Guarnaccia affiliated with any hospitals?

According to CMS data, Joseph Guarnaccia is affiliated with South County Hospital Inc, Kent County Memorial Hospital and Women & Infants Hospital Of Rhode Island.

When was this NPI record last updated?

The NPPES record for Joseph Guarnaccia was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.