1. Home
  2. Directory
  3. California
  4. Oceanside
  5. Internal Medicine
  6. NPI Profile

IAN B BUTLER MD
NPI 1053632034
Internal Medicine - Critical Care Medicine in Oceanside, CA

Active since June 14, 2010PECOS EnrolledAccepts Medicare Assignment
3231 WARING CT STE D, OCEANSIDE, CA 92056(760) 941-0221(760) 941-0905 Get Directions Write a Review

NPPES record last updated: September 1, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 1, 2022, Dec 1, 2021, Aug 29, 2017 (3 updates tracked since 2017).

About Ian B Butler Md NPPES

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

IAN B BUTLER MD (NPI 1053632034) is an individual critical care medicine provider in Oceanside, California, licensed in California (C137716) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and is a graduate of University Of Michigan Medical School (2005).

NPPES Registry Identity

NPI1053632034
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameIAN B BUTLERCredential: MD
Location Address3231 WARING CT STE DOceanside, CA 92056-4510
Mailing Address3231 Waring Ct Ste DOceanside, CA 92056-4510 · (760) 941-0221 · Fax (760) 941-0905
Phone(760) 941-0221
Fax(760) 941-0905
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 2005
Enumeration DateJune 14, 2010
Last NPPES UpdateSeptember 1, 20223 updates tracked since enumeration
NPPES CertifiedSeptember 1, 2022
✔ NPI 1053632034 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
Licenses✔ Licensed in CA · C137716✔ Licensed in TX · H5896
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedAnesthesiology · Critical Care MedicineTaxonomy 207LC0200X · License MD439803 (PA)
Also ListedEmergency MedicineTaxonomy 207P00000X · License MD439803 (PA)
3231 WARING CT STE D, Oceanside, CA 92056
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CHRISTUS Health Plan.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

Ian B Butler 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 ID1951426956
PECOS Enrollment IDI20151006003142
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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92056 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$57.78 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Ian Butler's NPI number?

The NPI number for Ian Butler is 1053632034. It was assigned to this individual provider in the NPPES registry on June 14, 2010.

Where is Ian Butler located?

Ian Butler practices at 3231 Waring Ct Ste D, Oceanside, CA 92056. The listed phone number is (760) 941-0221.

What is Ian Butler's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Ian Butler enrolled in Medicare?

Yes. Ian Butler 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 Ian Butler accept?

Health plans from CHRISTUS Health Plan list Ian Butler 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.

When was this NPI record last updated?

The NPPES record for Ian Butler was last updated on September 1, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.