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JOHN DEROUEN M.D.
NPI 1851311492
Anesthesiology in Bakersfield, CA

Active since July 19, 2006PECOS Enrolled
3850 SAN DIMAS ST, BAKERSFIELD, CA 93301(661) 663-3700 Get Directions Write a Review

NPPES record last updated: November 5, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About John Derouen M.d. NPPES

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

JOHN DEROUEN M.D. (NPI 1851311492) is an individual anesthesiology provider in Bakersfield, California, licensed in California (G76575) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851311492
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameJOHN DEROUENCredential: M.D.
Location Address3850 SAN DIMAS STBakersfield, CA 93301-1456
Mailing AddressPo Box 2029Bakersfield, CA 93303-2029 · (661) 843-7616 · Fax (661) 760-6926
Phone(661) 663-3700
Sole ProprietorYes
Enumeration DateJuly 19, 2006
Last NPPES UpdateNovember 5, 2025
NPPES CertifiedNovember 5, 2025
✔ NPI 1851311492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · G76575
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
3850 SAN DIMAS ST, Bakersfield, CA 93301
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Other Identifiers 1

Medicaid00G765750CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

John Derouen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show John Derouen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

John De Rouen MD Inc
2.7 mi
Anesthesiology
MILLENNIUM SURGERY CENTER, 3850 SAN DIMAS ST
Bakersfield, CA 93301
  • Reassigned Medicare billing, California enrollment
NPI 1346948155 (661) 663-3700

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

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.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
107 services91 patients
Anesthesia for other procedure on urinary system through urethra 00910
Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.
17 services14 patients
Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance 01938
This procedure involves using anesthesia to numb your lower back for certain procedures like injections, drainage, or aspiration on your spine or spinal cord. Imaging guidance is used to accurately locate the area to be treated, ensuring precision and safety.
17 services13 patients
Anesthesia for retinal surgery 00145
Anesthesia for retinal surgery involves using medications to numb your eye and surrounding area. This prevents pain and discomfort during the procedure. You may also receive medication to help you relax. The anesthesia can be local (just your eye) or general (you're asleep).
13 services13 patients
Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back 00300
Anesthesia for procedures on skin, muscles, or nerves of the head, neck, and upper back involves using medication to numb the area or make you unconscious during the procedure. This ensures you don't feel pain or discomfort. It's safe and monitored by professionals.
12 services11 patients

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. MARTHA MADRID MD
Anesthesiology
3850 SAN DIMAS ST
BAKERSFIELD, CA 93301
Kern County (661) 663-3700
MILLENNIUM SURGERY CENTER INC
Clinic/Center (Ambulatory Surgical)
3850 SAN DIMAS ST
BAKERSFIELD, CA 93301
Kern County (661) 663-3700
PRESTIGE ANESTHESIA A NURSING CORPORATION
Anesthesiology
3850 SAN DIMAS ST
BAKERSFIELD, CA 93301
Kern County (661) 663-3700

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 John Derouen's NPI number?

The NPI number for John Derouen is 1851311492. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Where is John Derouen located?

John Derouen practices at 3850 San Dimas St, Bakersfield, CA 93301. The listed phone number is (661) 663-3700.

What is John Derouen's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is John Derouen enrolled in Medicare?

Yes. John Derouen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for John Derouen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Derouen reassigns Medicare benefits to John De Rouen MD Inc (Bakersfield, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Derouen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for John Derouen was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.