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PACIFIC PERINATAL INSTITUTE
NPI 1942692777
Obstetrics & Gynecology - Maternal & Fetal Medicine in Colton, CA

Active since March 03, 2015CLIA 05D2097816 · Waiver
400 N PEPPER AVE, COLTON, CA 92324(909) 580-6333(909) 580-3289 Get Directions Write a Review

NPPES record last updated: May 29, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Pacific Perinatal Institute NPPES

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

PACIFIC PERINATAL INSTITUTE (NPI 1942692777) is a healthcare organization registered as a maternal & fetal medicine in Colton, California and active in the NPI registry since March 2015. The organization holds a CLIA Waiver certificate valid through June 23, 2027 and lists Guillermo J. Valenzuela, President, as its authorized official.

NPPES Registry Identity

NPI1942692777
Entity TypeOrganization
Primary Taxonomy207VM0101X
Legal Business NamePACIFIC PERINATAL INSTITUTE
Location Address400 N PEPPER AVEColton, CA 92324
Mailing Address400 N Pepper Ave, Mob 206Colton, CA 92324-1801 · (909) 580-6333 · Fax (909) 580-3289
Phone(909) 580-6333
Fax(909) 580-3289
Organization SubpartNo
Authorized OfficialGuillermo J. ValenzuelaPresident · (909) 580-6333
Enumeration DateMarch 3, 2015
Last NPPES UpdateMay 29, 2020
NPPES CertifiedMay 29, 2020
✔ NPI 1942692777 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X
400 N PEPPER AVE, Colton, CA 92324
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Pacific Perinatal Institute is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Pacific Perinatal Institute, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 4 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Dotun Ogunyemi, MD
Obstetrics/Gynecology
NPI 1619078532
400 N PEPPER AVE
Colton, CA 92324
(909) 580-3484
✔ PECOSSame address
Kristina Roloff, D.O.
Obstetrics/Gynecology
NPI 1649418401
400 N PEPPER AVE
Colton, CA 92324
(909) 580-3470
✔ PECOS✔ Accepts MedicareSame address
Guillermo Valenzuela, MD
Obstetrics/Gynecology
NPI 1730263484
400 N PEPPER AVE MOB 206
Colton, CA 92324
(909) 580-6333
✔ PECOS✔ Accepts MedicareSame address
Robert Stowe, DO
Obstetrics/Gynecology
NPI 1568994127
400 N PEPPER AVE
Colton, CA 92324
(909) 580-1000
✔ PECOS✔ Accepts Medicare0.2 mi
Robert Lopez, M.D.
Obstetrics/Gynecology
NPI 1396836094
12586 CENTRAL AVE
Chino, CA 91710
(909) 548-6820
✔ PECOS✔ Accepts Medicare20 mi
Richard Burwick, M.D., M.P.H.
Obstetrics/Gynecology
NPI 1740471531
1135 S SUNSET AVE STE 208
West Covina, CA 91790
(626) 337-4425
✔ PECOS34 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2097816

Pacific Perinatal Institute · Colton, CA
Active · expires Jun 23, 2027
CLIA Number05D2097816
Laboratory TypePhysician Office
Certificate Effective DateJune 24, 2025
Certificate Expiration DateJune 23, 2027
Laboratory DirectorKristina Roloff, Do
Laboratory Phone(909) 580-3470
Laboratory LocationPacific Perinatal Institute400 N Pepper Ave, Colton, CA 92324
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

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 Pacific Perinatal Institute's NPI number?

The NPI number for Pacific Perinatal Institute is 1942692777. It was assigned to this organization in the NPPES registry on March 3, 2015.

Where is Pacific Perinatal Institute located?

Pacific Perinatal Institute is located at 400 N Pepper Ave, Colton, CA 92324. The listed phone number is (909) 580-6333.

What is Pacific Perinatal Institute's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Pacific Perinatal Institute enrolled in Medicare?

Yes. Pacific Perinatal Institute is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Pacific Perinatal Institute?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians, all in Obstetrics/Gynecology, reassign their Medicare billing to Pacific Perinatal Institute. A 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 the clinician's services. Of these, 3 practice at this address and 4 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Pacific Perinatal Institute hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2097816) is associated with this NPI, valid through June 23, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Pacific Perinatal Institute was last updated on May 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.