Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CRISTINA MARIE CASAS LOYOLA
NPI 1427519164
Internal Medicine - Endocrinology, Diabetes & Metabolism in San Juan, PR

Active since March 26, 2019PECOS Enrolled
200 CALLE CUPEY GDNS STE 11W, SAN JUAN, PR 00926(787) 526-9798 Get Directions Write a Review

NPPES record last updated: September 17, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 17, 2026, May 20, 2026, Apr 30, 2026 and 4 more (7 updates tracked since 2020).

About Cristina Marie Casas Loyola NPPES

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

CRISTINA MARIE CASAS LOYOLA (NPI 1427519164) is an individual endocrinology, diabetes & metabolism provider in San Juan, Puerto Rico, licensed in Puerto Rico (022904) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and is a graduate of San Juan Bautista School Of Medicine (2020).

NPPES Registry Identity

NPI1427519164
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameCRISTINA MARIE CASAS LOYOLA
Location Address200 CALLE CUPEY GDNS STE 11WSan Juan, PR 00926-7366
Mailing Address200 Calle Cupey Gdns Ste 11wSan Juan, PR 00926-7366 · (787) 526-9798
Sole ProprietorNo
Medical School CMSSan Juan Bautista School Of MedicineGraduated 2020
Enumeration DateMarch 26, 2019
Last NPPES UpdateSeptember 17, 20267 updates tracked since enumeration
NPPES CertifiedSeptember 17, 2026
✔ NPI 1427519164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in PR · 022904
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License 22904 (PR)
Also ListedGeneral PracticeTaxonomy 208D00000X · License 15571I (PR)

Other Identifiers 1

Other6048757PR · Drivers License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Cristina Marie Casas Loyola is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133664873
PECOS Enrollment IDI20260427001892
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 00926 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
$130.65 typical visit price
range $56.86 – $172.44
Typical copayment $32.66 (range $14.21 – $43.11)
Most-billed visit code 99204
Established Patient
$100.24 typical visit price
range $18.24 – $140.44
Typical copayment $25.06 (range $4.56 – $35.11)
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 6

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

Clinical Neuropsychologist
200 CALLE CUPEY GDNS STE 11W
CUPEY, PR 00926
General Practice
200 CALLE CUPEY GDNS STE 11W
SAN JUAN, PR 00926
Social Worker (Clinical)
200 CALLE CUPEY GDNS STE 11W
SAN JUAN, PR 00926
Internal Medicine (Endocrinology, Diabetes & Metabolism)
200 CALLE CUPEY GDNS STE 11W
SAN JUAN, PR 00926
Naturopath
200 CALLE CUPEY GDNS STE 11W
SAN JUAN, PR 00926
Dietitian, Registered
200 CALLE CUPEY GDNS STE 11W
CUPEY, PR 00926

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 Casas Loyola's NPI number?

The NPI number for Cristina Casas Loyola is 1427519164. It was assigned to this individual provider in the NPPES registry on March 26, 2019.

Where is Cristina Casas Loyola located?

Cristina Casas Loyola practices at 200 Calle Cupey Gdns Ste 11W, San Juan, PR 00926. The listed phone number is (787) 526-9798.

What is Cristina Casas Loyola's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Cristina Casas Loyola enrolled in Medicare?

Yes. Cristina Casas Loyola is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Cristina Casas Loyola was last updated on September 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.