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ROSA CRISTINA VELASQUEZ MAGUINA MD
NPI 1740982966
Internal Medicine in Greenwich, CT

Active since March 21, 2023PECOS Enrolled
500 W PUTNAM AVE STE 110, GREENWICH, CT 06830(203) 422-7250(203) 422-7251 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: May 26, 2026, Mar 21, 2023 (2 updates tracked since 2023).

About Rosa Cristina Velasquez Maguina Md NPPES

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

ROSA CRISTINA VELASQUEZ MAGUINA MD (NPI 1740982966) is an individual internal medicine provider in Greenwich, Connecticut, licensed in Connecticut (84873) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740982966
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameROSA CRISTINA VELASQUEZ MAGUINACredential: MD
Location Address500 W PUTNAM AVE STE 110Greenwich, CT 06830-6079
Mailing Address500 W Putnam Ave Ste 110Greenwich, CT 06830-6079 · (203) 422-7250 · Fax (203) 422-7251
Phone(203) 422-7250
Fax(203) 422-7251
Sole ProprietorNo
Enumeration DateMarch 21, 2023
Last NPPES UpdateMay 26, 20262 updates tracked since enumeration
NPPES CertifiedMay 26, 2026
✔ NPI 1740982966 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 84873
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
500 W PUTNAM AVE STE 110, Greenwich, CT 06830
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rosa Cristina Velasquez Maguina Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06830 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.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ZHILIN JIN
Family Medicine
500 W PUTNAM AVE STE 110
GREENWICH, CT 06830
Western Connecticut Planning Region (203) 422-7250
MATTHEW MICHAEL SCOTT DO
Family Medicine (Adult Medicine)
500 W PUTNAM AVE STE 110
GREENWICH, CT 06830
Western Connecticut Planning Region (203) 422-7250
ANNA TAVDY RESISI DO
Internal Medicine
500 W PUTNAM AVE STE 110
GREENWICH, CT 06830
Western Connecticut Planning Region (203) 422-7250
KELSIE EILEEN TRILLO MSN-APRN-FNP-BC
Nurse Practitioner (Family)
500 W PUTNAM AVE STE 110
GREENWICH, CT 06830
Western Connecticut Planning Region (203) 422-7250

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 Rosa Velasquez Maguina's NPI number?

The NPI number for Rosa Velasquez Maguina is 1740982966. It was assigned to this individual provider in the NPPES registry on March 21, 2023.

Where is Rosa Velasquez Maguina located?

Rosa Velasquez Maguina practices at 500 W Putnam Ave Ste 110, Greenwich, CT 06830. The listed phone number is (203) 422-7250.

What is Rosa Velasquez Maguina's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Rosa Velasquez Maguina enrolled in Medicare?

Yes. Rosa Velasquez Maguina is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Rosa Velasquez Maguina was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.