DR. CHRISTOPHER ROMIG MD
NPI 1942396940
Anesthesiology in Mission Viejo, CA
About Dr. Christopher Romig Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTOPHER ROMIG MD (NPI 1942396940) is an individual anesthesiology provider in Mission Viejo, California, licensed in California (A96968) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Christopher Romig Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Christopher Romig reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mission Viejo, CA 92691
- Reassigned Medicare billing, California enrollment
- 56 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 29 clinicians in this Medicare group
Pasadena, CA 91105
- Reassigned Medicare billing, California enrollment
- 214 clinicians in this Medicare group
Tarzana, CA 91356
- Reassigned Medicare billing, California enrollment
- 26 clinicians in this Medicare group
Columbia, MD 21046
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 717 clinicians in this Medicare group
- Reassigned Medicare billing, California enrollment
- 420 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 3
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.
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.
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
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 Christopher Romig's NPI number?
The NPI number for Christopher Romig is 1942396940. It was assigned to this individual provider in the NPPES registry on October 5, 2006.
Where is Christopher Romig located?
Christopher Romig practices at 27401 Los Altos Ste 180, Mission Viejo, CA 92691. The listed phone number is (949) 364-1400.
What is Christopher Romig's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Christopher Romig enrolled in Medicare?
Yes. Christopher Romig is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Christopher Romig's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Romig reassigns Medicare benefits to 6 organizations: Western Anesthesia Medical Associates Inc (Mission Viejo, CA), Crystal Anesthesiology Inc (Orange, CA), Pacific Valley Medical Group (Pasadena, CA), Tarzana Anesthesia Medical Group, Inc. (Tarzana, CA), First Colonies Anesthesia Associates, LLC (Columbia, MD) 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 Christopher Romig'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 Christopher Romig was last updated on November 19, 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.
# Dr. Christopher Romig, MD · NPI 1942396940
Anesthesiology physician in Mission Viejo, California. Individual provider, active in the CMS NPPES registry since October 5, 2006.
## Identity
- **NPI:** 1942396940 (Entity type: Individual)
- **Enumerated:** October 5, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A96968 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 27401 LOS ALTOS, STE 180, Mission Viejo, CA 92691-8012
- **Phone:** (949) 364-1400
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Western Anesthesia Medical Associates Inc (NPI 1497796320, Mission Viejo, CA); Crystal Anesthesiology Inc (NPI 1285320580, Orange, CA); Pacific Valley Medical Group (NPI 1851312862, Pasadena, CA); Tarzana Anesthesia Medical Group, Inc. (NPI 1508897463, Tarzana, CA); First Colonies Anesthesia Associates, LLC (NPI 1740218767, Columbia, MD); and 1 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 19, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1942396940) · Data from the CMS NPPES public registry.