DR. ALONZO FIELDS
NPI 1427160407
Obstetrics & Gynecology in El Monte, CA

Q: What is Alonzo Fields's NPI number?

The NPI number for Alonzo Fields is 1427160407. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Q: What is Alonzo Fields's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Alonzo Fields was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since August 31, 2006PECOS Enrolled

10953 RAMONA BLVD, EL MONTE, CA 91731(626) 579-8463 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Alonzo Fields NPPES

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

DR. ALONZO FIELDS (NPI 1427160407) is an individual obstetrics & gynecology provider in El Monte, California, licensed in California (A87105) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427160407

Entity TypeIndividualMale

Primary Taxonomy207V00000X

Provider Legal NameDR. ALONZO FIELDS

Location Address10953 RAMONA BLVDEl Monte, CA 91731-2629

Mailing Address10953 Ramona BlvdEl Monte, CA 91731-2629 · (626) 579-8463

Phone(626) 579-8463

Sole ProprietorNo

Enumeration DateAugust 31, 2006

Last NPPES UpdateJuly 9, 2007

✔ NPI 1427160407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in CA · A87105

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

10953 RAMONA BLVD, El Monte, CA 91731

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Other Identifiers 3

Medicare UPINA87105CA

Medicare ID-Type UnspecifiedW932CA · Health Center

Medicare ID-Type UnspecifiedW809FCA · El Monte

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alonzo Fields is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91731 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. HENEDINA LIBAN

Pediatrics