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WILLIAM SANTIAGO-RIVERA M.D.
NPI 1669445144
Internal Medicine in Ponce, PR

Active since February 07, 2006PECOS EnrolledAccepts Medicare Assignment
909 AVE. TITO CASTRO, TORRE MEDICA SAN LUCAS, SUITE 717, PONCE, PR 00716(787) 841-5549(787) 840-3030 Get Directions Write a Review

NPPES record last updated: December 27, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William Santiago-rivera M.d. NPPES

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

WILLIAM SANTIAGO-RIVERA M.D. (NPI 1669445144) is an individual internal medicine provider in Ponce, Puerto Rico, licensed in Puerto Rico (14914) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Hospital Episcopal San Lucas Ii, and is a graduate of University Of Puerto Rico School Of Medicine (2001).

NPPES Registry Identity

NPI1669445144
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM SANTIAGO-RIVERACredential: M.D.
Location Address909 AVE. TITO CASTRO, TORRE MEDICA SAN LUCAS, SUITE 717Ponce, PR 00716
Mailing AddressPmb 157, Po Box 780Mercedita, PR 00715-0000 · (787) 841-5549 · Fax (787) 840-3030
Phone(787) 841-5549
Fax(787) 840-3030
Sole ProprietorYes
Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 2001
Enumeration DateFebruary 7, 2006
Last NPPES UpdateDecember 27, 2023
NPPES CertifiedDecember 27, 2023
✔ NPI 1669445144 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PR · 14914
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.

Other Identifiers 1

Other14914PR · State Liscence

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

William Santiago-rivera M.d. 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 ID6406815257
PECOS Enrollment IDI20041007000057
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
151 services55 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
26 services19 patients

Hospital Affiliations CMS Care Compare

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

Hospital Episcopal San Lucas II

Acute Care Hospitals · Ponce, PR
OwnershipVoluntary non-profit - Private
CMS Certification Number400044
Location917 Ave Tito CastroPonce, PR 00716 · Ponce County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00716 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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
3 suppliers11 claims35 services$6.94 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
3 suppliers11 claims18 services$1.15 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 William Santiago-rivera's NPI number?

The NPI number for William Santiago-rivera is 1669445144. It was assigned to this individual provider in the NPPES registry on February 7, 2006.

Where is William Santiago-rivera located?

William Santiago-rivera practices at 909 Ave. Tito Castro Torre Medica San Lucas, Suite 717, Ponce, PR 00716. The listed phone number is (787) 841-5549.

What is William Santiago-rivera's specialty?

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

Is William Santiago-rivera enrolled in Medicare?

Yes. William Santiago-rivera 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 William Santiago-rivera affiliated with any hospitals?

According to CMS data, William Santiago-rivera is affiliated with Hospital Episcopal San Lucas II.

When was this NPI record last updated?

The NPPES record for William Santiago-rivera was last updated on December 27, 2023. 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.