DR. STEVEN C BAST MD
NPI 1659348621
Orthopaedic Surgery in Pomona, CA
About Dr. Steven C Bast Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN C BAST MD (NPI 1659348621) is an individual orthopaedic surgery provider in Pomona, California, licensed in California (A055098) and active in the NPI registry since March 2006. He has opted out of Medicare through January 1, 2028 and remains eligible to order and refer and maintains a secondary practice location in Covina.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Opted out of Medicare
Dr. Steven C Bast Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 1, 2024 through January 1, 2028.
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.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
POMONA, CA 91767
POMONA, CA 91767
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 Steven Bast's NPI number?
The NPI number for Steven Bast is 1659348621. It was assigned to this individual provider in the NPPES registry on March 8, 2006.
Where is Steven Bast located?
Steven Bast practices at 255 E Bonita Ave Ste 101, Pomona, CA 91767. The listed phone number is (909) 593-7437.
What is Steven Bast's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Steven Bast enrolled in Medicare?
No. Steven Bast has opted out of Medicare through January 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.
When was this NPI record last updated?
The NPPES record for Steven Bast was last updated on September 14, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dr. Steven C Bast, MD · NPI 1659348621
Orthopaedic Surgery physician in Pomona, California. Individual provider, active in the CMS NPPES registry since March 8, 2006.
## Identity
- **NPI:** 1659348621 (Entity type: Individual)
- **Enumerated:** March 8, 2006
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** A055098 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 255 E BONITA AVE STE 101, Pomona, CA 91767-1923
- **Phone:** (909) 593-7437 · **Fax:** (909) 593-0318
## Medicare
- **Medicare:** Opted out of Medicare (opt-out affidavit on file, in effect through January 1, 2028); services are provided under private contract
## Record status
- **NPPES last updated:** September 14, 2020
- **Other identifiers:** Other WA55098B
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Source: [NPI Profile](https://npiprofile.com/npi/1659348621) · Data from the CMS NPPES public registry.