CHO MAY M.D
NPI 1063805331
Internal Medicine in Simi Valley, CA
About Cho May M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHO MAY M.D (NPI 1063805331) is an individual internal medicine provider in Simi Valley, California, licensed in California (A155306) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Cho May M.d 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.
Medicare Billing Reassignments
7Medicare enrollment records show Cho May reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Simi Valley, CA 93065
- Reassigned Medicare billing, California enrollment
- 962 clinicians in this Medicare group
Simi Valley, CA 93065
- Reassigned Medicare billing, California enrollment
- 109 clinicians in this Medicare group
Woodland Hills, CA 91367
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Los Angeles, CA 90020
- Reassigned Medicare billing, California enrollment
- 840 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Alhambra, CA 91801
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Apollomed Hospitalists A Medical Corporation
- 53 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 10
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93065 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
SIMI VALLEY, CA 93065
SIMI VALLEY, CA 93065
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 Cho May's NPI number?
The NPI number for Cho May is 1063805331. It was assigned to this individual provider in the NPPES registry on March 11, 2015.
Where is Cho May located?
Cho May practices at 2975 Sycamore Dr, Simi Valley, CA 93065. The listed phone number is (626) 944-5144.
What is Cho May's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Cho May enrolled in Medicare?
Yes. Cho May 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.
Which organizations bill Medicare for Cho May's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cho May reassigns Medicare benefits to 7 organizations: Galen Inpatient Physicians PC. (Simi Valley, CA), Menalam Health Services PC (Simi Valley, CA), Southern California Permanente Medical Group (Woodland Hills, CA), Pih Health Physicians (Los Angeles, CA), Healthcare Partners Affiliates Medical Group (Los Angeles, CA) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cho May's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Cho May was last updated on October 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Cho May, M.D · NPI 1063805331
Internal Medicine physician in Simi Valley, California. Individual provider, active in the CMS NPPES registry since March 11, 2015.
## Identity
- **NPI:** 1063805331 (Entity type: Individual)
- **Enumerated:** March 11, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A155306 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2975 SYCAMORE DR, Simi Valley, CA 93065-1201
- **Phone:** (626) 944-5144
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Galen Inpatient Physicians PC. (NPI 1851130819, Simi Valley, CA); Menalam Health Services PC (NPI 1114594967, Simi Valley, CA); Southern California Permanente Medical Group (NPI 1952333478, Woodland Hills, CA); Pih Health Physicians (NPI 1518625367, Los Angeles, CA); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** October 15, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1063805331) · Data from the CMS NPPES public registry.