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ADRIANA I MARZAN LOYOLA MD
NPI 1235591579
Internal Medicine - Gastroenterology in Manati, PR

Active since March 25, 2016PECOS EnrolledAccepts Medicare Assignment
200 CALLE HERNANDEZ CARRION, MANATI, PR 00674(787) 237-3480 Get Directions Write a Review

NPPES record last updated: February 27, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 27, 2023, Oct 5, 2020, Mar 30, 2016 and 1 more (4 updates tracked since 2016).

About Adriana I Marzan Loyola Md NPPES

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

ADRIANA I MARZAN LOYOLA MD (NPI 1235591579) is an individual gastroenterology provider in Manati, Puerto Rico, licensed in Puerto Rico (21301) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Juan, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1235591579
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameADRIANA I MARZAN LOYOLACredential: MD
Location Address200 CALLE HERNANDEZ CARRIONManati, PR 00674-4652
Mailing AddressPo Box 4062Guaynabo, PR 00970-4062 · (787) 237-3480
Phone(787) 237-3480
Sole ProprietorYes
Medical School CMSOtherGraduated 2022
Enumeration DateMarch 25, 2016
Last NPPES UpdateFebruary 27, 20234 updates tracked since enumeration
NPPES CertifiedAugust 10, 2022
✔ NPI 1235591579 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in PR · 21301
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License 21301 (PR)

Secondary Practice Location 1

Location 110 Calle CasiaSan Juan, PR 00921-3200 · Phone (787) 641-7582 ext. 12691 · Fax (787) 641-4561

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Adriana I Marzan Loyola Md 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 ID2860869096
PECOS Enrollment IDI20221102000476
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Adriana Marzan Loyola reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Adriana Marzan Loyola LLC
Gastroenterology
200 CALLE HERNANDEZ CARRION
Manati, PR 00674
  • Reassigned Medicare billing, Puerto Rico enrollment
NPI 1396466934 (787) 237-3480
Centro De Servicios Primarios De Salud Inc
Federally Qualified Health Center (FQHC)
3 ANTONIO ALCAZAR ST
Florida, PR 00650
  • Reassigned Medicare billing, Puerto Rico enrollment
  • 19 clinicians in this Medicare group
NPI 1104896190 (787) 822-2170

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00674 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 2

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

ADRIANA MARZAN LOYOLA LLC
Internal Medicine (Gastroenterology)
200 CALLE HERNANDEZ CARRION
MANATI, PR 00674
Manatí Municipio (787) 237-3480
DR. AYLEEN IVETTE ROMAN-CRUZ M.D.
Pediatrics
200 CALLE HERNANDEZ CARRION
MANATI, PR 00674
Manatí Municipio (787) 621-3700

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 Adriana Marzan Loyola's NPI number?

The NPI number for Adriana Marzan Loyola is 1235591579. It was assigned to this individual provider in the NPPES registry on March 25, 2016.

Where is Adriana Marzan Loyola located?

Adriana Marzan Loyola practices at 200 Calle Hernandez Carrion, Manati, PR 00674. The listed phone number is (787) 237-3480.

What is Adriana Marzan Loyola's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Adriana Marzan Loyola enrolled in Medicare?

Yes. Adriana Marzan 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.

Which organizations bill Medicare for Adriana Marzan Loyola's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Adriana Marzan Loyola reassigns Medicare benefits to 2 organizations: Adriana Marzan Loyola LLC (Manati, PR) and Centro De Servicios Primarios De Salud Inc (Florida, PR). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Adriana Marzan Loyola's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Adriana Marzan Loyola was last updated on February 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.