Dr. Alexander P Dunnum , DO
Anesthesiology β’ Oceanside, CA
200 Mercy Circle
Oceanside, CA 92058
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
200 Mercy Circle
Oceanside, CA 92058
NPPES lists 2 distinct additional practice-address records in Fresno, CA; Orange, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Anesthesiology: NPPES taxonomy is a reported classification, not proof of board certification.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
NPI first issued
2018
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Dunnum has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Dunnum as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Oceanside and California
9 active clinicians are listed under Anesthesiology with a practice address in Oceanside, CA (7,574 in California).
Addresses are self-reported to NPPES and may be out of date.
Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-11-19NUCC Taxonomy Code: 207L00000X
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.
NUCC Taxonomy Code: 171000000X
Active duty military health care providers not otherwise classified who need to be separately identified for operational, clinical, or administrative processes.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ANESTHESIOLOGY
I20240913002346
CA
8022558253
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
7300 N Fresno St
Fresno, CA 937202941
Phone: 5594484500
101 The City Dr S
Orange, CA 928683201
Phone: 7144568888
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Surgery
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Nurse Practitioner - Psychiatric/Mental Health
Psychiatric-Mental Health Nurse Practitioner
Dentist - Oral and Maxillofacial Surgery
Doctor of Dental Surgery
Physician Assistant
Physician Assistant (Certified)
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 200 MERCY CIRCLE, OCEANSIDE, CA 92058 (Tel: 7607251288)
Registered at 200 MERCY CIRCLE, OCEANSIDE, CA 92058
Anesthesiology (license number reported to NPPES: CA 20A22730)
Registered at 937 FRANKLIN BLVD, LEMOORE, CA 932464700 (Tel: 7579535000)
Registered at 937 FRANKLIN BLVD, LEMOORE, CA 932464700
Registered at 620 JOHN PAUL JONES CIR, PORTSMOUTH, VA 237082111 (Tel: 7579535000)
Military Health Care Provider (license number reported to NPPES: VA 0102205752)
Registered at 1/12 BATTALION AID STATION, 6894R SELBY ST, KANEOHE, HI 96744 (Tel: 8082571478)
Military Hospital (license number reported to NPPES: VA 0102205752)
NPI status registered as active in NPPES database
Registered at 620 JOHN PAUL JONES CIR, PORTSMOUTH, VA 237082111 (Tel: 7579535000)
Registered at 9403 RIVER POINTE LN, RINGLE, WI 544719789 (Tel: 7155810099)
Recorded as ALEXANDER DUNNUM, DO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
200 Mercy Circle
Oceanside, CA 92058