Alonzo Fields
Obstetrics & Gynecology Physician · El Monte, CA
Alonzo Fields is an obstetrics & gynecology physician with a practice address in El Monte, California, and NPI 1427160407, issued on Aug 31, 2006. Check the license (California A87105, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Alonzo Fields
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A87105 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10953 Ramona Blvd, El Monte, CA 91731
- Phone
- (626) 579-8463
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 10953 Ramona Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gloria Aguilar, REGISTER NURSEAmbulatory Care Registered Nurse1043740731
- Sandra AlarconLicensed Vocational Nurse1952160756
- Juliana Alcaraz, RNRegistered Nurse1235902776
- Sonia Aleman, RNRegistered Nurse1023875853
- Everdina AlisangcoPediatrics Physician1649382219
- Joseph Allevato, MDFamily Medicine Physician1922148790
Verify Alonzo Fields in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A87105Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Alonzo Fields among 5,088 obstetrics & gynecology physician records in California
Alonzo Fields is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileNo · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2007 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,088 in California → Every provider in El Monte → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Raymond Barajas, M.D.El Monte, CA 917311831271378
- Silvia DiazEl Monte, CA 917311396857868
- Gloria HaroEl Monte, CA 917311972615441
- Julius Kpaduwa, MDEl Monte, CA 917311578630125
- Rose WongEl Monte, CA 917311093827586
- Daniel Channell, MDRancho Cucamonga, CA 917301699749044
- Shawanda Obey, M.D.Rancho Cucamonga, CA 917301922125442
- Urvashi Sura, MDRancho Curamonga, CA 917301942219936
Common questions
What is Alonzo Fields's NPI number?
Alonzo Fields's National Provider Identifier (NPI) is 1427160407, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alonzo Fields located?
The NPPES record lists a practice address at 10953 Ramona Blvd, El Monte, CA, 91731. Phone: (626) 579-8463. Providers update this record themselves, so call before visiting.
How can I verify Alonzo Fields's license?
NPPES lists California license number A87105, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.