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DR. JUAN J DIAZ HERNANDEZ M.D.
NPI 1114121894
Surgery in San Juan, PR

Active since June 14, 2007PECOS EnrolledAccepts Medicare Assignment
29 CALLE WASHINGTON, ASHFORD MEDICAL CENTER STE 505, SAN JUAN, PR 00907(787) 596-7878(787) 721-2204 Get Directions Write a Review

NPPES record last updated: January 30, 2017. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Juan J Diaz Hernandez M.d. NPPES

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

DR. JUAN J DIAZ HERNANDEZ M.D. (NPI 1114121894) is an individual surgery provider in San Juan, Puerto Rico, licensed in Puerto Rico (17169) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Presbyterian Community Hosp, and is a graduate of University Of Puerto Rico School Of Medicine (2005).

NPPES Registry Identity

NPI1114121894
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. JUAN J DIAZ HERNANDEZCredential: M.D.
Location Address29 CALLE WASHINGTON, ASHFORD MEDICAL CENTER STE 505San Juan, PR 00907-1510
Mailing Address293 Calle Vicenza, Extention College ParkSan Juan, PR 00921-4705 · (787) 981-8509
Phone(787) 596-7878
Fax(787) 721-2204
Sole ProprietorYes
Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 2005
Enumeration DateJune 14, 2007
Last NPPES UpdateJanuary 30, 2017
✔ NPI 1114121894 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in PR · 17169✔ Licensed in FL · ME106431
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
29 CALLE WASHINGTON, San Juan, PR 00907
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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 and accepts Medicare assignment

Dr. Juan J Diaz Hernandez 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 ID6608908348
PECOS Enrollment IDI20120816000674
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

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

Presbyterian Community Hosp

Acute Care Hospitals · San Juan, PR
OwnershipVoluntary non-profit - Private
CMS Certification Number400001
Location1451 Ashford AvenueSan Juan, PR 00907 · San Juan County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00907 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
$88.07 typical visit price
range $56.86 – $172.44
Typical copayment $22.01 (range $14.21 – $43.11)
Most-billed visit code 99203
Established Patient
$70.88 typical visit price
range $18.24 – $140.44
Typical copayment $17.72 (range $4.56 – $35.11)
Most-billed visit code 99213
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. DOMINGO B. CORDERO M.D.
Psychologist (Clinical)
29 CALLE WASHINGTON, ASHFORD MEDICAL CENTER SUITE 310
SAN JUAN, PR 00907
San Juan Municipio (787) 722-5006
DR. ALEJANDRO A PORRATA NIEVA M.D.
Pain Medicine (Interventional Pain Medicine)
29 CALLE WASHINGTON, STE. 303
SAN JUAN, PR 00907
San Juan Municipio (787) 721-2250
DR. RAUL H MORALES-BORGES M.D.
Internal Medicine (Hematology & Oncology)
29 CALLE WASHINGTON, SUITE # 104
SAN JUAN, PR 00907
San Juan Municipio (787) 722-0412
DR. ILEANA MERCEDES FUMERO M.D.
Psychiatry & Neurology (Psychiatry)
29 CALLE WASHINGTON, ASHFORD MEDICAL CENTER SUITE 310
SAN JUAN, PR 00907
San Juan Municipio (787) 722-5006
FELIX VILLAR
Legal Medicine
29 CALLE WASHINGTON, ASHFORD MEDICAL CENTER SUITE 807
SAN JUAN, PR 00907
San Juan Municipio (787) 724-4630
DR. JORGE ARTURO NOYA MONAGAS SR. M.D.
Surgery
29 CALLE WASHINGTON, SUITE # 404
SAN JUAN, PR 00907
San Juan Municipio (787) 723-2168
CENTRO DE HEMATOLOGIA Y ONCOLOGIA MEDICA ASHFORD CSP
Clinic/Center (Oncology)
29 CALLE WASHINGTON, SUITE 604
SAN JUAN, PR 00907
San Juan Municipio (787) 725-6356
DR. EDGARDO RODRIGUEZ VALLECILLO M.D.
Dermatology
29 CALLE WASHINGTON, SUITE 507
SAN JUAN, PR 00907
San Juan Municipio (787) 723-7230

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 Juan Diaz Hernandez's NPI number?

The NPI number for Juan Diaz Hernandez is 1114121894. It was assigned to this individual provider in the NPPES registry on June 14, 2007.

Where is Juan Diaz Hernandez located?

Juan Diaz Hernandez practices at 29 Calle Washington Ashford Medical Center Ste 505, San Juan, PR 00907. The listed phone number is (787) 596-7878.

What is Juan Diaz Hernandez's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Juan Diaz Hernandez enrolled in Medicare?

Yes. Juan Diaz Hernandez 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 Juan Diaz Hernandez affiliated with any hospitals?

According to CMS data, Juan Diaz Hernandez is affiliated with Presbyterian Community Hosp.

When was this NPI record last updated?

The NPPES record for Juan Diaz Hernandez was last updated on January 30, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.