Brittany Giammalvo, RPA-C
Physician Assistant · Old Saybrook, CT
Brittany Giammalvo, RPA-C is a physician assistant with a practice address in Old Saybrook, Connecticut, and NPI 1033426200, issued on Sep 8, 2010. Check the license (Connecticut 4808, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Brittany Giammalvo
- Credential
- RPA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 4808 CT
Self-reported in NPPES; status is on the state search - Practice location
- 455 Boston Post RD Ste 10, Old Saybrook, CT 06475
- Phone
- (860) 388-9799
- Enumerated
- Sep 8, 2010
- Record last updated
- May 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (860) 388-6646
- Medicare enrollment
- Enrolled (PECOS I20200601002669); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,047 in Connecticut → Look up another NPI →
Also registered at 455 Boston Post RD Ste 10
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alicia Beck, PAMedical Physician Assistant1477838324
- Leigh Charron, P.A.-C.Physician Assistant1316295504
Verify Brittany Giammalvo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 4808Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average physician assistant in 2024
771 Medicare Part D claims for 338 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Ketoconazole124 claims
- Metronidazole106 claims
- Fluorouracil71 claims
- Triamcinolone Acetonide61 claims
- Betamethasone Dipropionate44 claims
- Doxycycline Hyclate42 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.
The MIPS final score for 2023 (Medicare payment program): 90 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $205.39
6 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. 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.
Bills Medicare through one group practice
- Saybrook Dermatology LLCOld Saybrook, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brittany Giammalvo among 2,047 physician assistant records in Connecticut
Brittany Giammalvo, RPA-C 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 2010, is newer than 28% of them.
- NPI issued2010 · 28% of these records are older, 69% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2010 · median 2018 among the 1,338 with a school on file
- Record last updated2020 · 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).
7 physician assistant records list a practice address in Old Saybrook
They are 7 of the 308 NPPES records with a practice address in Old Saybrook, and 2,047 physician assistant records in Connecticut.
All 2,047 in Connecticut → Every provider in Old Saybrook → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Leigh Charron, P.A.-C.Old Saybrook, CT 064751316295504
- Andrew LemireOld Saybrook, CT 064751043182322
- Lia Murphy, P.A.Old Saybrook, CT 064751699970244
- Sarah Overmoyer, PACOld Saybrook, CT 064751205807997
- Tyler RoblesOld Saybrook, CT 064751720840747
- Monique Salvas, PA-COld Saybrook, CT 064751417284761
- Richard Borecki, PA-CNorth Haven, CT 064731043156177
- Suzzunne Decruz, PA-COrange, CT 064771033312244
Common questions
What is Brittany Giammalvo, RPA-C's NPI number?
Brittany Giammalvo, RPA-C's National Provider Identifier (NPI) is 1033426200, issued on Sep 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Brittany Giammalvo, RPA-C located?
The NPPES record lists a practice address at 455 Boston Post RD Ste 10, Old Saybrook, CT, 06475. Phone: (860) 388-9799. Providers update this record themselves, so call before visiting.
How can I verify Brittany Giammalvo, RPA-C's license?
NPPES lists Connecticut license number 4808, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Brittany Giammalvo, RPA-C prescribe under Medicare Part D?
In 2024, Brittany Giammalvo, RPA-C had 771 Medicare Part D claims for 338 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Brittany Giammalvo, RPA-C's MIPS final score?
The 2023 MIPS final score is 90 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.