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

DR. IVONNE ESTHER HERNANDEZ CASTRO M.D.
NPI 1386136059
Internal Medicine in Naranjito, PR

Active since May 30, 2018PECOS Enrolled
CARRETERA 164 SECTOR EL DESVIO, NARANJITO, PR 00719(787) 869-1290 Get Directions Write a Review

NPPES record last updated: July 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 28, 2026, Jul 13, 2026, Nov 17, 2023 and 4 more (7 updates tracked since 2021).

About Dr. Ivonne Esther Hernandez Castro M.d. NPPES

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

DR. IVONNE ESTHER HERNANDEZ CASTRO M.D. (NPI 1386136059) is an individual internal medicine provider in Naranjito, Puerto Rico, licensed in Puerto Rico (23-152) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS and maintains a secondary practice location in Bayamon.

NPPES Registry Identity

NPI1386136059
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. IVONNE ESTHER HERNANDEZ CASTROCredential: M.D.
Location AddressCARRETERA 164 SECTOR EL DESVIONaranjito, PR 00719
Mailing AddressCalle Colorado Y14, Urb Extension De ParkvilleGuaynabo, PR 00969 · (787) 600-4800
Phone(787) 869-1290
Sole ProprietorNo
Enumeration DateMay 30, 2018
Last NPPES UpdateJuly 28, 20267 updates tracked since enumeration
NPPES CertifiedJuly 28, 2026
✔ NPI 1386136059 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PR · 23-152
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 ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X · License 23152 (PR)
Also ListedGeneral PracticeTaxonomy 208D00000X · License 23-152 (PR)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 35883-R (PR), 35720-R (PR), 34814 (PR)

Secondary Practice Location 1

Location 1100 Ave LaurelBayamon, PR 00956-4816 · Phone (787) 787-5151

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ivonne Esther Hernandez Castro M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 00719 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.

MRS. PATRICIA PANTOJA LND
Nutritionist
CARRETERA 164 SECTOR EL DESVIO
NARANJITO, PR 00719
Naranjito Municipio (787) 869-1290
MARIA ANGELICA GOMEZ-NEGRON
Pharmacist
CARRETERA 164 SECTOR EL DESVIO
NARANJITO, PR 00719
Naranjito Municipio (787) 869-1290

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 Ivonne Hernandez Castro's NPI number?

The NPI number for Ivonne Hernandez Castro is 1386136059. It was assigned to this individual provider in the NPPES registry on May 30, 2018.

Where is Ivonne Hernandez Castro located?

Ivonne Hernandez Castro practices at Carretera 164 Sector El Desvio, Naranjito, PR 00719. The listed phone number is (787) 869-1290.

What is Ivonne Hernandez Castro's specialty?

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

Is Ivonne Hernandez Castro enrolled in Medicare?

Yes. Ivonne Hernandez Castro is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Ivonne Hernandez Castro was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.