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DR. RONALD JAMES SIMMS D.C.
NPI 1497863930
Chiropractor in El Dorado Hills, CA

Active since August 25, 2006Accepts Medicare Assignment
3840 EL DORADO HILLS BLVD, STE 101, EL DORADO HILLS, CA 95762(916) 597-1887(916) 984-1115 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 6, 2026, Mar 25, 2020 (2 updates tracked since 2020).

About Dr. Ronald James Simms D.c. NPPES

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

DR. RONALD JAMES SIMMS D.C. (NPI 1497863930) is an individual chiropractor in El Dorado Hills, California, licensed in California (22467) and active in the NPI registry since August 2006. He is a graduate of Los Angeles College Of Chiropractic (1991).

NPPES Registry Identity

NPI1497863930
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. RONALD JAMES SIMMSCredential: D.C.
Location Address3840 EL DORADO HILLS BLVD, STE 101El Dorado Hills, CA 95762-4567
Mailing Address3840 El Dorado Hills Blvd Ste 101El Dorado Hills, CA 95762-4567 · (916) 933-7022 · Fax (916) 933-7025
Phone(916) 597-1887
Fax(916) 984-1115
Sole ProprietorYes
Medical School CMSLos Angeles College Of ChiropracticGraduated 1991
Enumeration DateAugust 25, 2006
Last NPPES UpdateFebruary 6, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 6, 2026
✔ NPI 1497863930 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in CA · 22467
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
3840 EL DORADO HILLS BLVD, El Dorado Hills, CA 95762
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ronald James Simms D.c. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3577573740
PECOS Enrollment IDI20060502000794

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Chiropractic manipulative treatment, 5 spinal regions 98942
Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's alignment. In a 5 spinal region treatment, the chiropractor applies controlled force to specific areas in your neck, mid-back, lower back, and both sides of your pelvis.
3,967 services181 patients

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KRISTA LYNN RAINWATERS D.C.
Chiropractor
3840 EL DORADO HILLS BLVD, STE. 201
EL DORADO HILLS, CA 95762
El Dorado County (916) 933-7022
WELLPOINT URGENT CARE LLC
Family Medicine (Adult Medicine)
3840 EL DORADO HILLS BLVD, SUITE 303
EL DORADO HILLS, CA 95762
El Dorado County (916) 457-7424
DR. NELSON JAMES LEE III D.C.
Chiropractor
3840 EL DORADO HILLS BLVD
EL DORADO HILLS, CA 95762
El Dorado County (916) 933-7022
TAVALLAEI, D.M.D., CORPORATION
Dentist (Pediatric Dentistry)
3840 EL DORADO HILLS BLVD, SUITE 203
EL DORADO HILLS, CA 95762
El Dorado County (916) 941-0303
S.Y. JANG DDS CORPORATIOM
Dentist (Pediatric Dentistry)
3840 EL DORADO HILLS BLVD, # 203
EL DORADO HILLS, CA 95762
El Dorado County (916) 941-0303
S. JANG DDS INCORPORATED
Dentist (Pediatric Dentistry)
3840 EL DORADO HILLS BLVD, 203
EL DORADO HILLS, CA 95762
El Dorado County (916) 984-4224
DR. DOUGLAS H. AASEBY O.D.
Optometrist
3840 EL DORADO HILLS BLVD, #103
EL DORADO HILLS, CA 95762
El Dorado County (916) 939-4470

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 Ronald Simms's NPI number?

The NPI number for Ronald Simms is 1497863930. It was assigned to this individual provider in the NPPES registry on August 25, 2006.

Where is Ronald Simms located?

Ronald Simms practices at 3840 El Dorado Hills Blvd Ste 101, El Dorado Hills, CA 95762. The listed phone number is (916) 597-1887.

What is Ronald Simms's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Ronald Simms enrolled in Medicare?

Yes. Ronald Simms is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Ronald Simms was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.