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

MARIBEL CASTELLANOS FNP-C
NPI 1861227860
Nurse Practitioner - Family in Jefferson, IA

Q: What is Maribel Castellanos's NPI number?

The NPI number for Maribel Castellanos is 1861227860. It was assigned to this individual provider in the NPPES registry on September 9, 2024.

Q: What is Maribel Castellanos's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Active since September 09, 2024PECOS EnrolledAccepts Medicare Assignment

106 W WASHINGTON ST STE 2, JEFFERSON, IA 50129(515) 386-4192 Get Directions Write a Review

NPPES record last updated: August 25, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Aug 25, 2026, Sep 9, 2024 (2 updates tracked since 2024).

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About Maribel Castellanos Fnp-c NPPES

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

MARIBEL CASTELLANOS FNP-C (NPI 1861227860) is an individual family provider in Jefferson, Iowa, licensed in Iowa (A180209) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS, is affiliated with Greene County Medical Center, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1861227860

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMARIBEL CASTELLANOSCredential: FNP-C

Location Address106 W WASHINGTON ST STE 2Jefferson, IA 50129-1901

Mailing Address1215 Duff AveAmes, IA 50010-5469 · (515) 239-4418

Phone(515) 386-4192

Sole ProprietorYes

Medical School CMSOtherGraduated 2024

Enumeration DateSeptember 9, 2024

Last NPPES UpdateAugust 25, 20262 updates tracked since enumeration

NPPES CertifiedAugust 25, 2026

✔ NPI 1861227860 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in IA · A180209

Also ListedNurse PractitionerTaxonomy 363L00000X · License A180209 (IA)

106 W WASHINGTON ST STE 2, Jefferson, IA 50129

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.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

Maribel Castellanos Fnp-c 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 ID6507397254

PECOS Enrollment IDI20241004001550

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

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 nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

16 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Greene County Medical Center

Critical Access Hospitals · Jefferson, IA

OwnershipGovernment - Local

CMS Certification Number161325

Location1000 West Lincoln WayJefferson, IA 50129 · Greene County

Emergency services

Boone County Hospital

Critical Access Hospitals · Boone, IA

OwnershipGovernment - Local

CMS Certification Number161372

Location1015 Union StreetBoone, IA 50036 · Boone County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50129 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

$81.84 typical visit price

range $52.96 – $161.40

Typical copayment $20.46 (range $13.24 – $40.35)

Most-billed visit code 99203

Established Patient

$94.05 typical visit price

range $16.91 – $131.98

Typical copayment $23.51 (range $4.22 – $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.

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.

DOMINIC THIELEN

Physical Therapist

106 W WASHINGTON ST STE 2
JEFFERSON, IA 50129

Greene County (515) 386-4192

JESSICA ANN PIERCE PA-C

Physician Assistant

106 W WASHINGTON ST STE 2
JEFFERSON, IA 50129

Greene County (515) 386-4192

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 Maribel Castellanos's NPI number?

The NPI number for Maribel Castellanos is 1861227860. It was assigned to this individual provider in the NPPES registry on September 9, 2024.

Where is Maribel Castellanos located?

Maribel Castellanos practices at 106 W Washington St Ste 2, Jefferson, IA 50129. The listed phone number is (515) 386-4192.

What is Maribel Castellanos's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Maribel Castellanos enrolled in Medicare?

Yes. Maribel Castellanos 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 Maribel Castellanos accept?

Health plans from Medica list Maribel Castellanos 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 Maribel Castellanos affiliated with any hospitals?

According to CMS data, Maribel Castellanos is affiliated with Greene County Medical Center and Boone County Hospital.

When was this NPI record last updated?

The NPPES record for Maribel Castellanos was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 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.