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KATHLEEN SERAFICA CASTILLO MD
NPI 1891374617
Internal Medicine - Nephrology in Bowling Green, KY

Active since April 07, 2021PECOS EnrolledAccepts Medicare Assignment
720 E 2ND AVE STE 203, BOWLING GREEN, KY 42101(270) 843-5114(270) 745-1230 Get Directions Write a Review

NPPES record last updated: August 3, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Aug 3, 2026, Mar 9, 2026, Apr 9, 2021 (3 updates tracked since 2021).

About Kathleen Serafica Castillo Md NPPES

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

KATHLEEN SERAFICA CASTILLO MD (NPI 1891374617) is an individual nephrology provider in Bowling Green, Kentucky, licensed in Kentucky (61484) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with The Medical Center (bowling Green), and is a graduate of Other (2004).

NPPES Registry Identity

NPI1891374617
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameKATHLEEN SERAFICA CASTILLOCredential: MD
Location Address720 E 2ND AVE STE 203Bowling Green, KY 42101-1778
Mailing Address720 E 2nd Ave Ste 203Bowling Green, KY 42101-1778 · (270) 843-5114 · Fax (270) 745-1230
Phone(270) 843-5114
Fax(270) 745-1230
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateApril 7, 2021
Last NPPES UpdateAugust 3, 20263 updates tracked since enumeration
NPPES CertifiedAugust 3, 2026
✔ NPI 1891374617 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Licenses✔ Licensed in KY · 61484✔ Licensed in OH · 35.153478
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 35.153478 (OH)
720 E 2ND AVE STE 203, Bowling Green, KY 42101
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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

Kathleen Serafica 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 ID6800296740
PECOS Enrollment IDI20260327002650
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.

The Medical Center (bowling Green)

Acute Care Hospitals · Bowling Green, KY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180013
Location250 Park StreetBowling Green, KY 42101 · Warren County
Emergency services Birthing friendly

Tristar Greenview Regional Hospital

Acute Care Hospitals · Bowling Green, KY
3/5 CMS rating
OwnershipProprietary
CMS Certification Number180124
Location1801 Ashley CircleBowling Green, KY 42104 · Warren County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 42101 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
$122.77 typical visit price
range $52.76 – $162.27
Typical copayment $30.69 (range $13.19 – $40.56)
Most-billed visit code 99204
Established Patient
$93.94 typical visit price
range $16.53 – $131.99
Typical copayment $23.48 (range $4.13 – $32.99)
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.

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 Kathleen Castillo's NPI number?

The NPI number for Kathleen Castillo is 1891374617. It was assigned to this individual provider in the NPPES registry on April 7, 2021.

Where is Kathleen Castillo located?

Kathleen Castillo practices at 720 E 2nd Ave Ste 203, Bowling Green, KY 42101. The listed phone number is (270) 843-5114.

What is Kathleen Castillo's specialty?

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

Is Kathleen Castillo enrolled in Medicare?

Yes. Kathleen 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.

Is Kathleen Castillo affiliated with any hospitals?

According to CMS data, Kathleen Castillo is affiliated with The Medical Center (bowling Green) and Tristar Greenview Regional Hospital.

When was this NPI record last updated?

The NPPES record for Kathleen Castillo was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.