Maggie Giambalvo, PA
Physician Assistant · Stamford, CT
Maggie Giambalvo, PA is a physician assistant with a practice address in Stamford, Connecticut, and NPI 1023647989, issued on Apr 3, 2020. Check the license (Connecticut 5067, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maggie Giambalvo
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5067 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1177 Summer St FL 5, Stamford, CT 06905
- Phone
- (203) 353-1133
- Enumerated
- Apr 3, 2020
- Record last updated
- Feb 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (203) 653-3398
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,047 in Connecticut → Look up another NPI →
Also registered at 1177 Summer St FL 5
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Maggie Giambalvo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 5067Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average physician assistant in 2024
137 Medicare Part D claims for 72 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Cephalexin30 claims
- Eliquis20 claims
- Pantoprazole Sodium17 claims
- Metoprolol Succinate14 claims
- Amiodarone Hcl13 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: $29.69
2 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 64,719 providers of this specialty with any payment received $841.65 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.
Maggie Giambalvo among 2,047 physician assistant records in Connecticut
Maggie Giambalvo, PA is one of 2,047 physician assistant records with a practice address in Connecticut. 78% 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 60% of them.
- NPI issued2020 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2021 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
82 physician assistant records list a practice address in Stamford
They are 82 of the 2,774 NPPES records with a practice address in Stamford, and 2,047 physician assistant records in Connecticut.
All 2,047 in Connecticut → Every provider in Stamford → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Chelsea Clemens, PAStamford, CT 069051104300987
- Lisa Covello, PA-CStamford, CT 069051750036646
- Emily Dowe, PA-CStamford, CT 069051831368281
- Susanne Godsey, PA-CStamford, CT 069051356630321
- Lubna LatifStamford, CT 069051598222119
- Kathleen OuelletteStamford, CT 069051194351056
- Ashley Pekera, PA-CStamford, CT 069051407496961
- Bernadette PowellStamford, CT 069051134850639
Common questions
What is Maggie Giambalvo, PA's NPI number?
Maggie Giambalvo, PA's National Provider Identifier (NPI) is 1023647989, issued on Apr 3, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Maggie Giambalvo, PA located?
The NPPES record lists a practice address at 1177 Summer St FL 5, Stamford, CT, 06905. Phone: (203) 353-1133. Providers update this record themselves, so call before visiting.
How can I verify Maggie Giambalvo, PA's license?
NPPES lists Connecticut license number 5067, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Maggie Giambalvo, PA prescribe under Medicare Part D?
In 2024, Maggie Giambalvo, PA had 137 Medicare Part D claims for 72 beneficiaries; the average among physician assistant prescribers was 830. 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.