Dr Guillermo J Valenzuela, MD - Medicare Obstetrics/gynecology in Colton, CA

Dr Guillermo J Valenzuela, MD is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in Colton, California. He graduated from medical school in 1974 and has 50 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Community Health Systems Inc, Valley Obstetrics And Gynecology Medical Group Inc and his current practice location is 400 N Pepper Ave, Mob 206, Colton, California. You can reach out to his office (for appointments etc.) via phone at (909) 580-6333.

Dr Guillermo J Valenzuela is licensed to practice in California (license number A38671) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1730263484.

Contact Information

Dr Guillermo J Valenzuela, MD
400 N Pepper Ave, Mob 206,
Colton, CA 92324-1801
(909) 580-6333
(909) 580-3289



Physician's Profile

Full NameDr Guillermo J Valenzuela
GenderMale
SpecialityObstetrics/gynecology
Experience50 Years
Location400 N Pepper Ave, Colton, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Guillermo J Valenzuela graduated from medical school in 1974
  NPI Data:
  • NPI Number: 1730263484
  • Provider Enumeration Date: 10/25/2006
  • Last Update Date: 05/29/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 8729072087
  • Enrollment ID: I20090729000689

Medical Identifiers

Medical identifiers for Dr Guillermo J Valenzuela such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1730263484NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine A38671 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Arrowhead Regional Medical CenterColton, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Community Health Systems Inc70128247178
Valley Obstetrics And Gynecology Medical Group Inc71139114706

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Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Guillermo J Valenzuela allows following entities to bill medicare on his behalf.
Entity NameValley Obstetrics & Gynecology Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144304817
PECOS PAC ID: 7113911470
Enrollment ID: O20040412000387

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Academy of Nutrition and Dietetics raises awareness about prevention and treatment of malnutrition

Preventing a patient from becoming malnourished can shorten his or her hospital stay, decrease hospital fees and, most importantly, improve the patient's quality of life. For those reasons, identifying and treating patients with malnutrition warrants the attention of health care providers and policymakers.

Global report shows both public and HCPs embrace benefits of connected care technologies

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Entity NamePacific Perinatal Institute
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942692777
PECOS PAC ID: 1850712340
Enrollment ID: O20200609003204

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Assessing glomerular filtration rate (GFR) using kidney filtration markers in blood is the standard means for determining kidney function, diagnosing kidney disease and measuring its progression. A higher filtration rate indicates healthy kidney function, while a lower rate points to various stages of kidney disease. A new study led by researchers at the Johns Hopkins Bloomberg School of Public Health found that the new CKD-EPI equation for calculating GFR is a better predictor of risk for kidney disease and death compared to the most widely used method. The findings suggest that switching to the CKD-EPI equation for calculating GFR could focus efforts more efficiently, and improve assessment of patient future risk and treatment of kidney disease. The study is published in the May 9 edition of JAMA.

Academy of Nutrition and Dietetics raises awareness about prevention and treatment of malnutrition

Preventing a patient from becoming malnourished can shorten his or her hospital stay, decrease hospital fees and, most importantly, improve the patient's quality of life. For those reasons, identifying and treating patients with malnutrition warrants the attention of health care providers and policymakers.

Global report shows both public and HCPs embrace benefits of connected care technologies

An international report published by Royal Philips reveals that our beleaguered NHS is more integrated than we realize and, in contrast with some other countries, both the public and HCPs are positive about the benefits offered by connected care technologies.

Updated clinical data from phase I study of Ensituximab presented at AACR meeting

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› Verified 6 days ago

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Guillermo J Valenzuela is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Guillermo J Valenzuela, MD
Po Box 1762,
Colton, CA 92324-0857

Ph: (909) 580-6332
Dr Guillermo J Valenzuela, MD
400 N Pepper Ave, Mob 206,
Colton, CA 92324-1801

Ph: (909) 580-6333

News Archive

A Better Method for Diagnosing Kidney Disease

Assessing glomerular filtration rate (GFR) using kidney filtration markers in blood is the standard means for determining kidney function, diagnosing kidney disease and measuring its progression. A higher filtration rate indicates healthy kidney function, while a lower rate points to various stages of kidney disease. A new study led by researchers at the Johns Hopkins Bloomberg School of Public Health found that the new CKD-EPI equation for calculating GFR is a better predictor of risk for kidney disease and death compared to the most widely used method. The findings suggest that switching to the CKD-EPI equation for calculating GFR could focus efforts more efficiently, and improve assessment of patient future risk and treatment of kidney disease. The study is published in the May 9 edition of JAMA.

Academy of Nutrition and Dietetics raises awareness about prevention and treatment of malnutrition

Preventing a patient from becoming malnourished can shorten his or her hospital stay, decrease hospital fees and, most importantly, improve the patient's quality of life. For those reasons, identifying and treating patients with malnutrition warrants the attention of health care providers and policymakers.

Global report shows both public and HCPs embrace benefits of connected care technologies

An international report published by Royal Philips reveals that our beleaguered NHS is more integrated than we realize and, in contrast with some other countries, both the public and HCPs are positive about the benefits offered by connected care technologies.

Updated clinical data from phase I study of Ensituximab presented at AACR meeting

Precision Biologics announced today that in conjunction with researchers from Precsion Biologics , Johns Hopkins Medical Center and Duke University Medical Center presented updated clinical data from the phase I study of Ensituximab, a novel therapeutic antibody to treat pancreas and colorectal cancers

Wound Care Center Application from MedData

MedData, Inc., a leading provider of medical revenue cycle management and patient satisfaction services, announced today the launch of a new technology that streamlines the data capture and billing process for Wound Care Physicians.

Read more News

› Verified 6 days ago


Obstetrics & Gynecology Doctors in Colton, CA

Melissa Hodeib, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 400 N Pepper Ave, Colton, CA 92324
Phone: 909-580-3470    
Dr. Bert J. Davidson, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 400 N Pepper Ave, Colton, CA 92324
Phone: 909-580-6320    Fax: 909-580-6369
Dr. Jasmaine Coleman, DO
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 400 N Pepper Ave, Colton, CA 92324
Phone: 909-580-4145    
Dr. Mohammadreza Ghayuri, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 400 N Pepper Ave, Colton, CA 92324
Phone: 909-580-3470    Fax: 909-580-3289
Dr. Buuloc Tan Luu, D.O.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 400 N Pepper Ave, Colton, CA 92324
Phone: 909-580-3470    
Dr. Thuy Duong Mai, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 400 N Pepper Ave, Colton, CA 92324
Phone: 909-580-3470    
Michelle Mellon,
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 400 N Pepper Ave, Colton, CA 92324
Phone: 909-580-1000    

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