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CRISTINA HAMACHER DO
NPI 1922793108
Internal Medicine in Warwick, RI

Active since April 05, 2023PECOS Enrolled
455 TOLL GATE RD, WARWICK, RI 02886(401) 737-7010 Get Directions Write a Review

NPPES record last updated: April 14, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Apr 14, 2026, Jun 22, 2023, Apr 5, 2023 (3 updates tracked since 2023).

About Cristina Hamacher Do NPPES

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

CRISTINA HAMACHER DO (NPI 1922793108) is an individual internal medicine provider in Warwick, Rhode Island, licensed in Rhode Island (DO01567) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS and is a graduate of Campbell Univ School Of Osteopathic Medicine (2023).

NPPES Registry Identity

NPI1922793108
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameCRISTINA HAMACHERCredential: DO
Location Address455 TOLL GATE RDWarwick, RI 02886-2759
Mailing Address455 Toll Gate RdWarwick, RI 02886-2759
Phone(401) 737-7010
Sole ProprietorNo
Medical School CMSCampbell Univ School Of Osteopathic MedicineGraduated 2023
Enumeration DateApril 5, 2023
Last NPPES UpdateApril 14, 20263 updates tracked since enumeration
NPPES CertifiedApril 14, 2026
✔ NPI 1922793108 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in RI · DO01567
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.
455 TOLL GATE RD, Warwick, RI 02886
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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)

Cristina Hamacher Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9133588007
PECOS Enrollment IDI20260521003961
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 02886 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
$134.17 typical visit price
range $58.57 – $177.03
Typical copayment $33.54 (range $14.64 – $44.25)
Most-billed visit code 99204
Established Patient
$103.10 typical visit price
range $18.92 – $144.38
Typical copayment $25.77 (range $4.73 – $36.09)
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 20

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

DR. STERLING LEAF MALISH M.D.
Internal Medicine
455 TOLL GATE RD
WARWICK, RI 02886
Kent County (401) 737-7000
MRS. JENNIFER JENNINGS NP
Nurse Practitioner (Adult Health)
455 TOLL GATE RD
WARWICK, RI 02886
Kent County (401) 737-7010
SABRINA O'DONNELL FNP-BC
Nurse Practitioner (Family)
455 TOLL GATE RD
WARWICK, RI 02886
Kent County (401) 737-7000
CHRISTOPHER BAZE DO
Emergency Medicine
455 TOLL GATE RD
WARWICK, RI 02886
Kent County (401) 737-7010
KELLY SANCHEZ MD
Family Medicine
455 TOLL GATE RD
WARWICK, RI 02886
Kent County (401) 737-7010
KENNETH ROBERT LARSEN D.O
Emergency Medicine
455 TOLL GATE RD
WARWICK, RI 02886
Kent County (401) 736-4289
JOHN A GELZHISER M.D.
Internal Medicine
455 TOLL GATE RD
WARWICK, RI 02886
Kent County (401) 737-7000
RICHARD J PEDRO D.O.
Anesthesiology
455 TOLL GATE RD
WARWICK, RI 02886
Kent County (401) 737-7010

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 Cristina Hamacher's NPI number?

The NPI number for Cristina Hamacher is 1922793108. It was assigned to this individual provider in the NPPES registry on April 5, 2023.

Where is Cristina Hamacher located?

Cristina Hamacher practices at 455 Toll Gate Rd, Warwick, RI 02886. The listed phone number is (401) 737-7010.

What is Cristina Hamacher's specialty?

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

Is Cristina Hamacher enrolled in Medicare?

Yes. Cristina Hamacher is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Cristina Hamacher was last updated on April 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.