DR. DOUGLAS MALCOM MIDDLETON M.D.
NPI 1427138791
Emergency Medicine in San Diego, CA
About Dr. Douglas Malcom Middleton M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DOUGLAS MALCOM MIDDLETON M.D. (NPI 1427138791) is an individual emergency medicine provider in San Diego, California, licensed in California (C39843) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Big Spring.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Douglas Malcom Middleton M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Douglas Middleton reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92111
- Reassigned Medicare billing, California enrollment
- 1,233 clinicians in this Medicare group
Huntington Beach, CA 92647
- Reassigned Medicare billing, California enrollment
- 45 clinicians in this Medicare group
Monterey Park, CA 91754
- Reassigned Medicare billing, California enrollment
- 50 clinicians in this Medicare group
Bakersfield, CA 93301
- Reassigned Medicare billing, California enrollment
- 200 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 92121 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN DIEGO, CA 92121
SAN DIEGO, CA 92121
SAN DIEGO, CA 92121
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 Douglas Middleton's NPI number?
The NPI number for Douglas Middleton is 1427138791. It was assigned to this individual provider in the NPPES registry on October 17, 2006.
Where is Douglas Middleton located?
Douglas Middleton practices at 10243 Genetic Center Dr, San Diego, CA 92121. The listed phone number is (619) 446-1861.
What is Douglas Middleton's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Douglas Middleton enrolled in Medicare?
Yes. Douglas Middleton is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Douglas Middleton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Middleton reassigns Medicare benefits to 4 organizations: Sharp Rees-Stealy Medical Group, Inc (San Diego, CA), Beach Emergency Medical Associates (Huntington Beach, CA), Golden West Emergency Medical Associates, Inc (Monterey Park, CA) and Pinnacle Emergency Physicians Of Bakersfield, A Professional Corp (Bakersfield, 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 Douglas Middleton'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 Douglas Middleton was last updated on October 15, 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. Douglas Malcom Middleton, M.D. · NPI 1427138791
Emergency Medicine physician in San Diego, California. Individual provider, active in the CMS NPPES registry since October 17, 2006.
## Identity
- **NPI:** 1427138791 (Entity type: Individual)
- **Enumerated:** October 17, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** C39843 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 10243 GENETIC CENTER DR, San Diego, CA 92121-6310
- **Phone:** (619) 446-1861
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Sharp Rees-Stealy Medical Group, Inc (NPI 1285616177, San Diego, CA); Beach Emergency Medical Associates (NPI 1013074996, Huntington Beach, CA); Golden West Emergency Medical Associates, Inc (NPI 1053680298, Monterey Park, CA); Pinnacle Emergency Physicians Of Bakersfield, A Professional Corp (NPI 1386980415, Bakersfield, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 15, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1427138791) · Data from the CMS NPPES public registry.