JOHANNA V BASA M.D.
NPI 1821326380
Surgery in Pomona, CA
About Johanna V Basa M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHANNA V BASA M.D. (NPI 1821326380) is an individual surgery provider in Pomona, California, licensed in California (A136671) and active in the NPI registry since November 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 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
Johanna V Basa 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
2Medicare enrollment records show Johanna Basa reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pomona, CA 91767
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1558689794 (California)
- 114 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 7 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
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 91767 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.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Johanna Basa's NPI number?
The NPI number for Johanna Basa is 1821326380. It was assigned to this individual provider in the NPPES registry on November 21, 2009.
Where is Johanna Basa located?
Johanna Basa practices at 520 E Foothill Blvd Ste C, Pomona, CA 91767. The listed phone number is (909) 398-4835.
What is Johanna Basa's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Johanna Basa enrolled in Medicare?
Yes. Johanna Basa 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 Johanna Basa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Johanna Basa reassigns Medicare benefits to 2 organizations: Chaparral Medical Group, Inc. (Pomona, CA) and Surgical Multispecialties Medical Group (Los Angeles, CA). 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 Johanna Basa'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 Johanna Basa was last updated on September 12, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Johanna V Basa, M.D. · NPI 1821326380
Surgery physician in Pomona, California. Individual provider, active in the CMS NPPES registry since November 21, 2009.
## Identity
- **NPI:** 1821326380 (Entity type: Individual)
- **Enumerated:** November 21, 2009
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** A136671 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 520 E FOOTHILL BLVD STE C, Pomona, CA 91767-1200
- **Phone:** (909) 398-4835 · **Fax:** (909) 398-4925
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Chaparral Medical Group, Inc. (NPI 1598122418, Pomona, CA); Surgical Multispecialties Medical Group (NPI 1659385599, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** September 12, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1821326380) · Data from the CMS NPPES public registry.