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DR. CLINTON RIDDELL MD
NPI 1669091385
Anesthesiology in Redlands, CA

Active since April 13, 2020PECOS EnrolledAccepts Medicare Assignment
350 TERRACINA BLVD, REDLANDS, CA 92373(909) 335-5619 Get Directions Write a Review

NPPES record last updated: April 22, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 22, 2026, Apr 13, 2020 (2 updates tracked since 2020).

About Dr. Clinton Riddell Md NPPES

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

DR. CLINTON RIDDELL MD (NPI 1669091385) is an individual anesthesiology provider in Redlands, California, licensed in California (188948) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1669091385
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. CLINTON RIDDELLCredential: MD
Location Address350 TERRACINA BLVDRedlands, CA 92373-4897
Mailing Address350 Terracina BlvdRedlands, CA 92373-4897
Phone(909) 335-5619
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 13, 2020
Last NPPES UpdateApril 22, 20262 updates tracked since enumeration
NPPES CertifiedApril 22, 2026
✔ NPI 1669091385 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · 188948
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.
350 TERRACINA BLVD, Redlands, CA 92373
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Clinton Riddell 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 ID7810431236
PECOS Enrollment IDI20240626003494
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 Clinton Riddell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Darin Rentz Do PC
Same address
Anesthesiology
350 TERRACINA BLVD
Redlands, CA 92373
  • Reassigned Medicare billing, California enrollment
  • 241 clinicians in this Medicare group
NPI 1689321747 (877) 565-6701

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

Other Providers at the Same Location NPPES 20

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

DEBORAH LEE BEHRINGER MD
Emergency Medicine
350 TERRACINA BLVD, BANGASSER WOUND CARE CENTER
REDLANDS, CA 92373
San Bernardino County (909) 478-6731
MARK ALAN HIDAY F.N.P.-C
Nurse Practitioner
350 TERRACINA BLVD
REDLANDS, CA 92373
San Bernardino County (909) 335-5500
REDLANDS COMMUNITY HOSPITAL
General Acute Care Hospital
350 TERRACINA BLVD
REDLANDS, CA 92373
San Bernardino County (909) 335-5501
MS. KAREN VIRGINIA ZIRKLE P.T.
Physical Therapist
350 TERRACINA BLVD
REDLANDS, CA 92373
San Bernardino County (909) 335-5617
KIRK G HOWARD M.D.
Anesthesiology
350 TERRACINA BLVD
REDLANDS, CA 92373
San Bernardino County (909) 335-5619
CATHRYN MARIE O'NEILL M.D.
Family Medicine
350 TERRACINA BLVD
REDLANDS, CA 92373
San Bernardino County (909) 335-5500
DR. SHELLEE RAE LAZAR M.D.
Obstetrics & Gynecology
350 TERRACINA BLVD
REDLANDS, CA 92373
San Bernardino County (909) 335-5616
KIRK G. HOWARD MD INC
Anesthesiology
350 TERRACINA BLVD
REDLANDS, CA 92373
San Bernardino County (909) 335-5619

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 Clinton Riddell's NPI number?

The NPI number for Clinton Riddell is 1669091385. It was assigned to this individual provider in the NPPES registry on April 13, 2020.

Where is Clinton Riddell located?

Clinton Riddell practices at 350 Terracina Blvd, Redlands, CA 92373. The listed phone number is (909) 335-5619.

What is Clinton Riddell's specialty?

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

Is Clinton Riddell enrolled in Medicare?

Yes. Clinton Riddell 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.

Which organization bills Medicare for Clinton Riddell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clinton Riddell reassigns Medicare benefits to Darin Rentz Do PC (Redlands, 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 Clinton Riddell'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 Clinton Riddell was last updated on April 22, 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.