DR. GENNY SIM
NPI 1588936256
Family Medicine in Colton, CA

Q: What is Genny Sim's NPI number?

The NPI number for Genny Sim is 1588936256. It was assigned to this individual provider in the NPPES registry on January 27, 2012.

Q: What is Genny Sim's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Genny Sim was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 January 27, 2012PECOS Enrolled

400 N PEPPER AVE, COLTON, CA 92324(909) 580-1000 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Genny Sim NPPES

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

DR. GENNY SIM (NPI 1588936256) is an individual family medicine provider in Colton, California, licensed in California (390200000) and active in the NPI registry since January 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1588936256

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameDR. GENNY SIM

Location Address400 N PEPPER AVEColton, CA 92324-1801

Mailing Address7734 Montecito CtRancho Cucamonga, CA 91730-6801

Phone(909) 580-1000

Sole ProprietorNo

Enumeration DateJanuary 27, 2012

Last NPPES UpdateNovember 29, 2021

✔ NPI 1588936256 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · 390200000

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

400 N PEPPER AVE, Colton, CA 92324

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Genny Sim 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.

Medicare Billing Reassignment

Medicare enrollment records show Genny Sim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group

4.5 mi

Health Maintenance Organization

9961 SIERRA AVE
Fontana, CA 92335

Reassigned Medicare billing, California enrollment
5,228 clinicians in this Medicare group

NPI 1689606196 (909) 427-3910

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92324 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

$91.88 typical visit price

range $59.60 – $179.42

Typical copayment $22.97 (range $14.90 – $44.85)

Most-billed visit code 99203

Established Patient

$104.64 typical visit price

range $19.37 – $146.42

Typical copayment $26.16 (range $4.84 – $36.60)

Most-billed visit code 99214

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.

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