Rosa Cristina Velasquez Maguina, MD
Internal Medicine Physician · Greenwich, CT
Rosa Cristina Velasquez Maguina, MD is an internal medicine physician with a practice address in Greenwich, Connecticut, and NPI 1740982966, issued on Mar 21, 2023. Check the license (Connecticut 84873, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Rosa Cristina Velasquez Maguina
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 84873 CT
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Putnam Ave Ste 110, Greenwich, CT 06830
- Phone
- (203) 422-7250
- Enumerated
- Mar 21, 2023
- Record last updated
- May 26, 2026
- Fax
- (203) 422-7251
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 500 W Putnam Ave Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kelsie Trillo, MSN-APRN-FNP-BCFamily Nurse Practitioner1780348151
Verify Rosa Cristina Velasquez Maguina in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 84873Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
239 Medicare Part D claims for 95 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Atorvastatin Calcium16 claims
- Amlodipine Besylate14 claims
- Rosuvastatin Calcium14 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.
Rosa Cristina Velasquez Maguina among 2,623 internal medicine physician records in Connecticut
Rosa Cristina Velasquez Maguina, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 98% of them.
- NPI issued2023 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 internal medicine physician records list a practice address in Greenwich
They are 54 of the 1,184 NPPES records with a practice address in Greenwich, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Greenwich → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anthony Alleva, MDGreenwich, CT 068301518938778
- Joseph Andrews, M.D.Greenwich, CT 068301740280411
- Allen Chodock, MDGreenwich, CT 068301811928138
- John Delvecchio, MDGreenwich, CT 068301619990868
- Stephen Jones, M.D.Greenwich, CT 068301174547038
- Ellika Mardh, M.D.Greenwich, CT 068301235150145
- Mohammad Reza Moienafshari, M.D.Greenwich, CT 068301154396893
- Marcelyn Molloy, MDGreenwich, CT 068301053301358
Common questions
What is Rosa Cristina Velasquez Maguina, MD's NPI number?
Rosa Cristina Velasquez Maguina, MD's National Provider Identifier (NPI) is 1740982966, issued on Mar 21, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Rosa Cristina Velasquez Maguina, MD located?
The NPPES record lists a practice address at 500 W Putnam Ave Ste 110, Greenwich, CT, 06830. Phone: (203) 422-7250. Providers update this record themselves, so call before visiting.
How can I verify Rosa Cristina Velasquez Maguina, MD's license?
NPPES lists Connecticut license number 84873, 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 Rosa Cristina Velasquez Maguina, MD prescribe under Medicare Part D?
In 2024, Rosa Cristina Velasquez Maguina, MD had 239 Medicare Part D claims for 95 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.