Dr Alonzo Fields, - Medicare Obstetrics/gynecology in El Monte, CA

Dr Alonzo Fields, is a medicare enrolled "Obstetrics & Gynecology" physician in El Monte, California. He went to Indiana University School Of Medicine and graduated in 1963 and has 61 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice County Of Los Angeles and his current practice location is 10953 Ramona Blvd, El Monte, California. You can reach out to his office (for appointments etc.) via phone at (626) 579-8463.

Dr Alonzo Fields is licensed to practice in California (license number A87105) 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 1427160407.

Contact Information

Dr Alonzo Fields,
10953 Ramona Blvd,
El Monte, CA 91731-2629
(626) 579-8463
Not Available

Map and Direction




Physician's Profile

Full NameDr Alonzo Fields
GenderMale
SpecialityObstetrics/gynecology
Experience61 Years
Location10953 Ramona Blvd, El Monte, 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 Alonzo Fields attended and graduated from Indiana University School Of Medicine in 1963
  NPI Data:
  • NPI Number: 1427160407
  • Provider Enumeration Date: 08/31/2006
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 2163601956
  • Enrollment ID: I20110126000195

Medical Identifiers

Medical identifiers for Dr Alonzo Fields such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427160407NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology A87105 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Los Angeles1850296534270

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 Alonzo Fields allows following entities to bill medicare on his behalf.
Entity NameCounty Of Los Angeles
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851363188
PECOS PAC ID: 1850296534
Enrollment ID: O20031204001218

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 Alonzo Fields 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 Alonzo Fields,
10953 Ramona Blvd,
El Monte, CA 91731-2629

Ph: (626) 579-8463
Dr Alonzo Fields,
10953 Ramona Blvd,
El Monte, CA 91731-2629

Ph: (626) 579-8463

Reviews and Comments


Obstetrics & Gynecology Doctors in El Monte, CA

Rose Wong,
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 10953 Ramona Blvd, El Monte, CA 91731
Phone: 626-579-8463    
Ms. Silvia Diaz,
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 10953 Ramona Blvd, El Monte, CA 91731
Phone: 626-579-8463    
Julius C Kpaduwa, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 11036 Valley Mall, El Monte, CA 91731
Phone: 626-575-8342    Fax: 626-575-1237
Anne Quach Lam, NURSE PRACTITIONER
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 11017 Valley Mall, El Monte, CA 91731
Phone: 626-575-8342    Fax: 626-575-1237
Dr. Raymond Anthony Barajas, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 3560 Santa Anita Ave, Ste H, El Monte, CA 91731
Phone: 626-579-9595    Fax: 626-579-3851
Gloria Haro,
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 10953 Ramona Blvd, El Monte, CA 91731
Phone: 626-579-8463    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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