DEREK L PASSER M.D.
NPI 1174055693
Anesthesiology in San Diego, CA
About Derek L Passer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEREK L PASSER M.D. (NPI 1174055693) is an individual anesthesiology provider in San Diego, California, licensed in California (A182607) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Olean General Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
Accepted Insurance
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
Derek L Passer 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
10Medicare enrollment records show Derek Passer reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kearney, NE 68845
- Reassigned Medicare billing, Nebraska enrollment
- 187 clinicians in this Medicare group
Eau Claire, WI 54701
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- 1,440 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 397 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Plover, WI 54467
- Reassigned Medicare billing, Wisconsin enrollment
- 935 clinicians in this Medicare group
Columbus, WI 53925
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Beaver Dam Community Hospitals Inc.
- 1,447 clinicians in this Medicare group
Buffalo, NY 14203
- Reassigned Medicare billing, New York enrollment
- 182 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Olean General Hospital
Acute Care Hospitals · Olean, NYAspirus Rhinelander Hospital
Acute Care Hospitals · Rhinelander, WIAspirus Riverview Hospital & Clinics Inc
Acute Care Hospitals · Wisconsin Rapids, WIMedicare 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.
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 Derek Passer's NPI number?
The NPI number for Derek Passer is 1174055693. It was assigned to this individual provider in the NPPES registry on April 3, 2017.
Where is Derek Passer located?
Derek Passer practices at 3626 Ruffin Rd, San Diego, CA 92123. The listed phone number is (858) 565-9666.
What is Derek Passer's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Derek Passer enrolled in Medicare?
Yes. Derek Passer 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 Derek Passer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek Passer reassigns Medicare benefits to 10 organizations: Bryan Hospital Kearney (Kearney, NE), Mchs Hospitals Inc (Eau Claire, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI), Memorial Hospital Inc (Neillsville, WI), Marshfield Clinic Inc (Marshfield, WI) and 5 more organizations, 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 Derek Passer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Derek Passer accept?
Health plans from Anthem Blue Cross and Blue Shield list Derek Passer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Derek Passer affiliated with any hospitals?
According to CMS data, Derek Passer is affiliated with Olean General Hospital, Aspirus Rhinelander Hospital and Aspirus Riverview Hospital & Clinics Inc.
When was this NPI record last updated?
The NPPES record for Derek Passer was last updated on October 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Derek L Passer, M.D. · NPI 1174055693
Anesthesiology physician in San Diego, California. Individual provider, active in the CMS NPPES registry since April 3, 2017.
## Identity
- **NPI:** 1174055693 (Entity type: Individual)
- **Enumerated:** April 3, 2017
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A182607 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3626 RUFFIN RD, San Diego, CA 92123-1810
- **Phone:** (858) 565-9666 · **Fax:** (858) 565-9441
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): Bryan Hospital Kearney (NPI 1033875380, Kearney, NE); Mchs Hospitals Inc (NPI 1316416035, Eau Claire, WI); Lakeview Medical Center Inc Of Rice Lake (NPI 1659008605, Chetek, WI); Memorial Hospital Inc (NPI 1033701800, Neillsville, WI); Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Nebraska College Of Medicine, class of 2017
## Record status
- **NPPES last updated:** October 15, 2024
- **Other identifiers:** Medicaid 2280216 (WA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1174055693) · Data from the CMS NPPES public registry.