1. Home
  2. Directory
  3. California
  4. San Diego
  5. Anesthesiology
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DEREK LYLE FOERSCHLER D.O.
NPI 1336335942
Anesthesiology in San Diego, CA

Active since September 18, 2007PECOS Enrolled
82.78/100
CMS Quality Rating
200 W ARBOR DR, SAN DIEGO, CA 92103(800) 926-8273(888) 539-8781 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 6, 2026, Sep 22, 2024, Aug 6, 2024 and 1 more (4 updates tracked since 2021).

About Derek Lyle Foerschler D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DEREK LYLE FOERSCHLER D.O. (NPI 1336335942) is an individual anesthesiology provider in San Diego, California, licensed in California (20A18793) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1336335942
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDEREK LYLE FOERSCHLERCredential: D.O.
Location Address200 W ARBOR DRSan Diego, CA 92103-9000
Mailing AddressFile 57326Los Angeles, CA 90074-7326 · (800) 926-8273
Phone(800) 926-8273
Fax(888) 539-8781
Sole ProprietorNo
Enumeration DateSeptember 18, 2007
Last NPPES UpdateOctober 6, 20264 updates tracked since enumeration
NPPES CertifiedOctober 6, 2026
✔ NPI 1336335942 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in CA · 20A18793✔ Licensed in HI · DOS2479✔ Licensed in PA · OS021636
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
200 W ARBOR DR, San Diego, CA 92103
Open in Google Maps ↗

Secondary Practice Locations 4

Location 16655 Alvarado RdSan Diego, CA 92120-5208 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 29300 Campus Point DrLA Jolla, CA 92037-1300 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 3Box 63036, Bravo Surg Co. 3D Med BattalionKaneohe Bay, HI 96863-3036 · Phone (808) 257-9991
Location 41 Jarrett White RdTripler Army Medical Center, HI 96859-5001 · Phone (808) 433-6661

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Derek Lyle Foerschler D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Derek Foerschler reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sarmc Anesthesia Specialist LLC
2,328 mi
Critical Care Medicine
1144 N ROAD ST
Elizabeth City, NC 27909
  • Reassigned Medicare billing, North Carolina enrollment
  • 99 clinicians in this Medicare group
NPI 1295194397 (252) 384-4804

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

82.78/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.74
Improvement Activities40

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.

DR. RAMIN MOTARJEMI M.D.
Internal Medicine (Geriatric Medicine)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (858) 249-2500
DR. KYLE PALMER EDMONDS M.D., FAAHPM
Hospice, Inpatient
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
SHAWN RAVEENTH VEDAMANI MD
Anesthesiology
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
DALE MICHAEL TRUJILLO NP
Nurse Practitioner
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
DR. EUGENE THOMAS RICHARDSON IV MD
Internal Medicine (Infectious Disease)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
KAYLEE PETERSEN ARNP
Nurse Practitioner (Psychiatric/Mental Health)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
IRENE NEVAREZ NP
Nurse Practitioner
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
WILLIAM JAMES MOSS M.D.
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (508) 395-4189

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 Foerschler's NPI number?

The NPI number for Derek Foerschler is 1336335942. It was assigned to this individual provider in the NPPES registry on September 18, 2007.

Where is Derek Foerschler located?

Derek Foerschler practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (800) 926-8273.

What is Derek Foerschler's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Derek Foerschler enrolled in Medicare?

Yes. Derek Foerschler is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Derek Foerschler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Derek Foerschler reassigns Medicare benefits to Sarmc Anesthesia Specialist LLC (Elizabeth City, NC). The 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 Foerschler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Derek Foerschler accept?

Health plans from Cigna Healthcare list Derek Foerschler 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.

When was this NPI record last updated?

The NPPES record for Derek Foerschler was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.