DR. MACIEJ WITKOS MD
NPI 1407086077
Emergency Medicine in San Diego, CA
About Dr. Maciej Witkos Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MACIEJ WITKOS MD (NPI 1407086077) is an individual emergency medicine provider in San Diego, California, licensed in California (A125812) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Maciej Witkos Md 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
6Medicare enrollment records show Maciej Witkos reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 526 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 221 clinicians in this Medicare group
San Diego, CA 92127
- Reassigned Medicare billing, California enrollment
- 271 clinicians in this Medicare group
Oceanside, CA 92056
- Reassigned Medicare billing, California enrollment
- 140 clinicians in this Medicare group
Temecula, CA 92592
- Reassigned Medicare billing, California enrollment
- 77 clinicians in this Medicare group
Temecula, CA 92592
- Reassigned Medicare billing, California enrollment
- 2,584 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92103 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
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 Maciej Witkos's NPI number?
The NPI number for Maciej Witkos is 1407086077. It was assigned to this individual provider in the NPPES registry on July 17, 2009.
Where is Maciej Witkos located?
Maciej Witkos practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (800) 926-8273.
What is Maciej Witkos's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Maciej Witkos enrolled in Medicare?
Yes. Maciej Witkos 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 Maciej Witkos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maciej Witkos reassigns Medicare benefits to 6 organizations: Regents Of The University Of California (San Diego, CA), Regents Of The University Of California (San Diego, CA), Uc San Diego Health Community Group (San Diego, CA), Team Physicians Of Southern California Medical Group, Inc. (Oceanside, CA), Temecula Valley Emergency Physicians, Inc (Temecula, CA) and 1 more organization, 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 Maciej Witkos'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 Maciej Witkos was last updated on September 24, 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.
# Dr. Maciej Witkos, MD · NPI 1407086077
Emergency Medicine physician in San Diego, California. Individual provider, active in the CMS NPPES registry since July 17, 2009.
## Identity
- **NPI:** 1407086077 (Entity type: Individual)
- **Enumerated:** July 17, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A125812 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 W ARBOR DR, San Diego, CA 92103-9000
- **Phone:** (800) 926-8273
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1003934803, San Diego, CA); Regents Of The University Of California (NPI 1780870899, San Diego, CA); Uc San Diego Health Community Group (NPI 1659864247, San Diego, CA); Team Physicians Of Southern California Medical Group, Inc. (NPI 1225499015, Oceanside, CA); Temecula Valley Emergency Physicians, Inc (NPI 1407281223, Temecula, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** September 24, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1407086077) · Data from the CMS NPPES public registry.