Cassidy Ann Guida, DO
Geriatric Medicine (Internal Medicine) Physician · Southampton, NY
Cassidy Ann Guida, DO is a geriatric medicine (internal medicine) physician with a practice address in Southampton, New York, and NPI 1831775261, issued on Mar 24, 2021. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Cassidy Ann Guida
- Credential
- DO
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 2024-01371 NC
Self-reported in NPPES; status is on the state search - Practice location
- 240 Meeting House LN, Southampton, NY 11968
- Phone
- (631) 726-8200
- Enumerated
- Mar 24, 2021
- Record last updated
- Sep 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20251009001245); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2021
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 508 in New York → Look up another NPI →
Also registered at 240 Meeting House LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adriel AbrahamStudent in an Organized Health Care Education/Training Program1609627587
- Sreya AddankiStudent in an Organized Health Care Education/Training Program1053114835
- Erfan Ahmed, DOStudent in an Organized Health Care Education/Training Program1669267308
- Rahat Ahmed, MDStudent in an Organized Health Care Education/Training Program1558823195
- Sandra Alfano, R.D.Registered Dietitian1780747188
- John AlfaroneStudent in an Organized Health Care Education/Training Program1124967914
Verify Cassidy Ann Guida in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
92 Medicare Part D claims for 36 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Wake Forest University Health SciencesWinston Salem, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassidy Ann Guida among 508 geriatric medicine (internal medicine) physician records in New York
Cassidy Ann Guida, DO is one of 508 geriatric medicine (internal medicine) physician records with a practice address in New York. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 95% of them.
- NPI issued2021 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2021 · median 1998 among the 272 with a school on file
- Record last updated2025 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in New York
There are 508 geriatric medicine (internal medicine) physician records in New York.
All 508 in New York → Every provider in Southampton → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Martin Podgainy, MDCalverton, NY 119331588989909
- Juanito So, MDAmsterdam, NY 120101659370146
- Nazir Memon, MS,MD,FACPClifton Park, NY 120651235165192
- Marina Zelener, D.O.Hicksville, NY 118011396943031
- Eirene Milano, MDWoodbury, NY 117971154597425
- Timothy Chong, MDStony Brook, NY 117941609371137
- Samira MohsinStony Brook, NY 117941760778187
- Nazia Sarker, MDStony Brook, NY 117941306422753
Common questions
What is Cassidy Ann Guida, DO's NPI number?
Cassidy Ann Guida, DO's National Provider Identifier (NPI) is 1831775261, issued on Mar 24, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Cassidy Ann Guida, DO located?
The NPPES record lists a practice address at 240 Meeting House LN, Southampton, NY, 11968. Phone: (631) 726-8200. Providers update this record themselves, so call before visiting.
How can I verify Cassidy Ann Guida, DO's license?
Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cassidy Ann Guida, DO prescribe under Medicare Part D?
In 2024, Cassidy Ann Guida, DO had 92 Medicare Part D claims for 36 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.