1. Home
  2. Directory
  3. California
  4. La Jolla
  5. Anesthesiology
  6. NPI Profile

MARLENE BARNHOUSE M.D.
NPI 1740576875
Anesthesiology - Critical Care Medicine in La Jolla, CA

Active since June 28, 2011PECOS EnrolledAccepts Medicare Assignment
10666 N TORREY PINES RD # 308W, LA JOLLA, CA 92037(858) 554-8506(858) 554-8506 Get Directions Write a Review

NPPES record last updated: February 3, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 3, 2026, Dec 18, 2022, Jul 12, 2016 (3 updates tracked since 2016).

About Marlene Barnhouse M.d. NPPES

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

MARLENE BARNHOUSE M.D. (NPI 1740576875) is an individual critical care medicine provider in La Jolla, California, licensed in California (A127716) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1740576875
Entity TypeIndividualFemale
Primary Taxonomy207LC0200X
Provider Legal NameMARLENE BARNHOUSECredential: M.D.
Location Address10666 N TORREY PINES RD # 308WLa Jolla, CA 92037-1027
Mailing Address10790 Rancho Bernardo RdSan Diego, CA 92127-5705 · (858) 554-8860
Phone(858) 554-8506
Fax(858) 554-8506
Sole ProprietorYes
Medical School CMSOtherGraduated 1997
Enumeration DateJune 28, 2011
Last NPPES UpdateFebruary 3, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 3, 2026
✔ NPI 1740576875 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LC0200X
License✔ Licensed in CA · A127716
Definition
An anesthesiologist, who specializes in critical care medicine 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 ListedAnesthesiologyTaxonomy 207L00000X · License A127716 (CA)
10666 N TORREY PINES RD # 308W, La Jolla, CA 92037
Open in Google Maps ↗

Other Names 1

Former Name (1)Marlene Hachmann M.d.

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

Marlene Barnhouse M.d. 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 ID9234423583
PECOS Enrollment IDI20160809001233
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 3

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.
141 services75 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.
25 services23 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
22 services16 patients

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 Marlene Barnhouse's NPI number?

The NPI number for Marlene Barnhouse is 1740576875. It was assigned to this individual provider in the NPPES registry on June 28, 2011. The provider is also known as Marlene Hachmann M.D..

Where is Marlene Barnhouse located?

Marlene Barnhouse practices at 10666 N Torrey Pines Rd # 308W, La Jolla, CA 92037. The listed phone number is (858) 554-8506.

What is Marlene Barnhouse's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Critical Care Medicine, with taxonomy code 207LC0200X.

Is Marlene Barnhouse enrolled in Medicare?

Yes. Marlene Barnhouse 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.

When was this NPI record last updated?

The NPPES record for Marlene Barnhouse was last updated on February 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.