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GUILLERMO A. ALVAREZ MD
NPI 1063820355
Internal Medicine in Moca, PR

Active since July 30, 2014PECOS EnrolledAccepts Medicare Assignment
MOCA MEDICAL PLAZA, CARR 110 KM 5.2 BO PUEBLO, MOCA, PR 00676(787) 877-6103(787) 877-9400 Get Directions Write a Review

NPPES record last updated: January 2, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 2, 2024, Oct 31, 2022 (2 updates tracked since 2022).

About Guillermo A. Alvarez Md NPPES

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

GUILLERMO A. ALVAREZ MD (NPI 1063820355) is an individual internal medicine provider in Moca, Puerto Rico, licensed in Puerto Rico (18845) and active in the NPI registry since July 2014. He is enrolled in Medicare PECOS, is affiliated with Mayaguez Medical Center Dr Ramon Emeterio Betances, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1063820355
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGUILLERMO A. ALVAREZCredential: MD
Location AddressMOCA MEDICAL PLAZA, CARR 110 KM 5.2 BO PUEBLOMoca, PR 00676
Mailing AddressHc 9 Box 12378Aguadilla, PR 00603 · (954) 812-1881
Phone(787) 877-6103
Fax(787) 877-9400
Sole ProprietorYes
Medical School CMSOtherGraduated 2004
Enumeration DateJuly 30, 2014
Last NPPES UpdateJanuary 2, 20242 updates tracked since enumeration
NPPES CertifiedDecember 29, 2023
✔ NPI 1063820355 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PR · 18845
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.
Also ListedGeneral PracticeTaxonomy 208D00000X · License 18845 (PR)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 18845 (PR)

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

Guillermo A. Alvarez 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 ID2567778996
PECOS Enrollment IDI20150901000123
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mayaguez Medical Center Dr Ramon Emeterio Betances

Acute Care Hospitals · Mayaguez, PR
OwnershipProprietary
CMS Certification Number400103
LocationCarr 2 Bo SabalosMayaguez, PR 00682 · Mayaguez County
Emergency services

Hospital San Carlos Borromeo

Acute Care Hospitals · Moca, PR
OwnershipVoluntary non-profit - Private
CMS Certification Number400111
LocationCalle Concepcion Vera Ayala #550 SMoca, PR 00676 · Moca County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00676 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

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

MOCA DENTAL SERVICE PSC
Dentist (General Practice)
MOCA MEDICAL PLAZA, SUITE 211 STREET 110 INT 125
MOCA, PR 00676
Moca Municipio (787) 877-7000

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 Guillermo Alvarez's NPI number?

The NPI number for Guillermo Alvarez is 1063820355. It was assigned to this individual provider in the NPPES registry on July 30, 2014.

Where is Guillermo Alvarez located?

Guillermo Alvarez practices at Moca Medical Plaza Carr 110 Km 5.2 Bo Pueblo, Moca, PR 00676. The listed phone number is (787) 877-6103.

What is Guillermo Alvarez's specialty?

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

Is Guillermo Alvarez enrolled in Medicare?

Yes. Guillermo Alvarez 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.

Is Guillermo Alvarez affiliated with any hospitals?

According to CMS data, Guillermo Alvarez is affiliated with Mayaguez Medical Center Dr Ramon Emeterio Betances and Hospital San Carlos Borromeo.

When was this NPI record last updated?

The NPPES record for Guillermo Alvarez was last updated on January 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.