DR. IGNACIO ALBERTO PORTALES CASTILLO MD
NPI 1740631183
Internal Medicine - Nephrology in Saint Louis, MO

Q: What is Ignacio Portales Castillo's NPI number?

The NPI number for Ignacio Portales Castillo is 1740631183. It was assigned to this individual provider in the NPPES registry on June 27, 2016.

Q: What is Ignacio Portales Castillo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Active since June 27, 2016PECOS EnrolledAccepts Medicare Assignment

79.29/100

CMS Quality Rating

1 BARNES JEWISH HOSPITAL PLZ, DIV IM NEPHROLOGY, SAINT LOUIS, MO 63110(314) 362-7603(314) 747-5213 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Sep 23, 2022 and 3 more (6 updates tracked since 2016).

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About Dr. Ignacio Alberto Portales Castillo Md NPPES

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

DR. IGNACIO ALBERTO PORTALES CASTILLO MD (NPI 1740631183) is an individual nephrology provider in Saint Louis, Missouri, licensed in Missouri (2021040899) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Alton Memorial Hospital, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1740631183

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. IGNACIO ALBERTO PORTALES CASTILLOCredential: MD

Location Address1 BARNES JEWISH HOSPITAL PLZ, DIV IM NEPHROLOGYSaint Louis, MO 63110-1003

Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-7603 · Fax (314) 747-5213

Phone(314) 362-7603

Fax(314) 747-5213

Sole ProprietorNo

Medical School CMSOtherGraduated 2016

Enumeration DateJune 27, 2016

Last NPPES UpdateApril 17, 20256 updates tracked since enumeration

NPPES CertifiedAugust 2, 2022

✔ NPI 1740631183 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in MO · 2021040899

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License 2021040899 (MO)

1 BARNES JEWISH HOSPITAL PLZ, Saint Louis, MO 63110

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Other Identifiers 1

Medicaid200110124MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans.Insurance ›

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. Ignacio Alberto Portales Castillo 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 ID2062757404

PECOS Enrollment IDI20220720001116

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 11

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

217 services95 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

130 services98 patients

Dialysis procedure including 1 evaluation 90945

Dialysis is a treatment that filters and purifies the blood when your kidneys can't do their job. The procedure involves circulating your blood through a machine that removes waste products. An evaluation is done beforehand to assess your health and determine the best approach for your treatment.

87 services23 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

80 services41 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

68 services31 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

45 services26 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

44 services44 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

31 services31 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

25 services19 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

24 services24 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

20 services20 patients

Hospital Affiliations CMS Care Compare 3

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

Alton Memorial Hospital

Acute Care Hospitals · Alton, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140002

LocationOne Memorial DriveAlton, IL 62002 · Madison County

Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number260032

LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County

Emergency services Birthing friendly

Barnes-Jewish West County Hospital

Acute Care Hospitals · Creve Coeur, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260162

Location12634 Olive BoulevardCreve Coeur, MO 63141 · St. Louis County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 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

$128.28 typical visit price

range $55.65 – $169.38

Typical copayment $32.07 (range $13.91 – $42.34)

Most-billed visit code 99204

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.29/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

71.46

Promoting Interoperability

100

Improvement Activities

Cost

59.51

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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. MARGARET LEIGHTON MCNAIRY MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

ANNA RABINOV ANNA RABINOV

Obstetrics & Gynecology

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

MRS. MICHELLE MARIE BLOOM ACNP

Nurse Practitioner (Acute Care)

1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110

St. Louis City (800) 862-9980

DR. FARIS ADAM BAKEER MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

DR. REHAN RAIS MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

DR. RANDY OLIVIER LAINE MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

DR. BRADLEY SETH KUSHNER MD

Surgery

1 BARNES JEWISH HOSPITAL PLZ, DIV SURG VASCULAR
SAINT LOUIS, MO 63110

St. Louis City (314) 273-7373

MS. KELSEY ELISE FOGUS CRNA

Nurse Anesthetist, Certified Registered

1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110

St. Louis City (800) 862-9980

NAKUL SHAH

Internal Medicine

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 362-5000

DR. YAMAN GHASSAN MKHAIMER MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

MS. CLAIRA J SOUSA CRNA

Nurse Anesthetist, Certified Registered

1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110

St. Louis City (800) 862-9980

ADRIENNE VIRGINIA VISANI

Student in an Organized Health Care Education/Training Program

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

ALEX RICHARD MD

Student in an Organized Health Care Education/Training Program

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

DIVYA SHARMA DIVYADARSHINI MD

Internal Medicine (Nephrology)

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 362-9096

CHRISTINA EDDINS MOTR/L

Occupational Therapist

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

ARIANNA ROTH BARNES

Clinical Nurse Specialist (Critical Care Medicine)

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 400-0606

RACHEL SMIGELSKI-THEISS MSN, RN, ACCNS-AG

Clinical Nurse Specialist (Medical-Surgical)

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 738-1457

DR. NGUYET M NGUYEN MD

Internal Medicine (Pulmonary Disease)

1 BARNES JEWISH HOSPITAL PLZ, DEPT INTERNAL MEDICINE
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

MR. AARON M WEINZETTEL CRNA

Nurse Anesthetist, Certified Registered

1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110

St. Louis City (800) 862-9980

DR. VORACHART AUETHAVEKIAT MD

Internal Medicine (Hematology)

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HEMATOLOGY
SAINT LOUIS, MO 63110

St. Louis City (314) 362-7216

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 Ignacio Portales Castillo's NPI number?

The NPI number for Ignacio Portales Castillo is 1740631183. It was assigned to this individual provider in the NPPES registry on June 27, 2016.

Where is Ignacio Portales Castillo located?

Ignacio Portales Castillo practices at 1 Barnes Jewish Hospital Plz Div Im Nephrology, Saint Louis, MO 63110. The listed phone number is (314) 362-7603.

What is Ignacio Portales Castillo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Ignacio Portales Castillo enrolled in Medicare?

Yes. Ignacio Portales Castillo 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.

What insurance does Ignacio Portales Castillo accept?

Health plans from Cox HealthPlans list Ignacio Portales Castillo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ignacio Portales Castillo affiliated with any hospitals?

According to CMS data, Ignacio Portales Castillo is affiliated with Alton Memorial Hospital, Barnes Jewish Hospital and Barnes-Jewish West County Hospital.

When was this NPI record last updated?

The NPPES record for Ignacio Portales Castillo was last updated on April 17, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.