1. Home
  2. Directory
  3. California
  4. Fountain Valley
  5. Surgery
  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.

DR. RICHARD ALLEN GUERRERO JR. M.D.
NPI 1891715835
Surgery in Fountain Valley, CA

Active since July 20, 2006PECOS Enrolled
11100 WARNER AVE STE 266, FOUNTAIN VALLEY, CA 92708(714) 617-4733(714) 617-4748 Get Directions Write a Review

NPPES record last updated: July 31, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Richard Allen Guerrero Jr. M.d. NPPES

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

DR. RICHARD ALLEN GUERRERO JR. M.D. (NPI 1891715835) is an individual surgery provider in Fountain Valley, California, licensed in California (A79327) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (2000).

NPPES Registry Identity

NPI1891715835
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. RICHARD ALLEN GUERRERO JR.Credential: M.D.
Location Address11100 WARNER AVE STE 266Fountain Valley, CA 92708-7512
Mailing Address5267 Warner Ave, #322Huntington Beach, CA 92649-4079 · (714) 617-4733 · Fax (714) 617-4748
Phone(714) 617-4733
Fax(714) 617-4748
Sole ProprietorYes
Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 2000
Enumeration DateJuly 20, 2006
Last NPPES UpdateJuly 31, 2026
NPPES CertifiedJuly 31, 2026
✔ NPI 1891715835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A79327
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
11100 WARNER AVE STE 266, Fountain Valley, CA 92708
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Richard Allen Guerrero Jr. M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4587663836
PECOS Enrollment IDI20061213000643, I20100706000596
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.

Areas of Expertise CMS Part B claims 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
38 services14 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
35 services31 patients
Ultrasound study of arm or leg veins with compression and maneuvers 93970
An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.
26 services20 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
20 services20 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
16 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92708 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RICHARD A GUERRERO JR MD A MEDICAL CORPORATION
Surgery
11100 WARNER AVE STE 266
FOUNTAIN VALLEY, CA 92708
Orange County (714) 617-4733

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 Richard Guerrero's NPI number?

The NPI number for Richard Guerrero is 1891715835. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is Richard Guerrero located?

Richard Guerrero practices at 11100 Warner Ave Ste 266, Fountain Valley, CA 92708. The listed phone number is (714) 617-4733.

What is Richard Guerrero's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Richard Guerrero enrolled in Medicare?

Yes. Richard Guerrero is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Richard Guerrero was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.